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Journal articles on the topic 'Detectable metals'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Su, Yudan, Hua Wang, Jie Li, et al. "Absence of detectable MOKE signals from spin Hall effect in metals." Applied Physics Letters 110, no. 4 (2017): 042401. http://dx.doi.org/10.1063/1.4974044.

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Meshram, Leena N., and Amisha A. Bhagat. "Pollution Profile of the Panvel Creek, Raigad, Maharashtra, India: Analysis of the Heavy Metal Contamination." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 19 (2024): 540–50. http://dx.doi.org/10.56557/upjoz/2024/v45i194557.

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The concentration of heavy metal levels (Cd, Cu, Hg, Ni, Pb, and Zn) were assessed in water samples from Panvel creek, District Raigad, Maharashtra, West Coast of India. The heavy metals were analysed by using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). Results of the study reveal that, Cu, Ni, Zn, and Hg were detected in water samples of Panvel creek whereas Pb and Cd were not reported. Levels of Cu range from not detectable to 0.037 ppm whereas concentration of Ni varies from not detectable to 0.048. Zn is the only metal which is consistently detected at both the sites

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3

Oriakpono Obemeata Emmanuel and Gabriel Victory Ima-Owaji. "Plankton composition and heavy metal concentrations in fish from Bundu-Ama Creek, Port Harcourt, Rivers State." World Journal of Biology Pharmacy and Health Sciences 10, no. 1 (2022): 008–18. http://dx.doi.org/10.30574/wjbphs.2022.10.1.0059.

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This study examines plankton composition and diversity as well as the heavy metal concentrations in fish from Bundu-ama creek, rivers State, Nigeria. The heavy metals tested were Nickel (Ni), copper (Cu), chromium (Cr), Zinc (Zn), Cadmium (Cd), using Atomic Absorption Spectrophotometer. The results for the heavy metals are as follows; Ni was below detectable limit throughout the points in the first month, while in the second month and third month it ranged from (0.038±0.046mg/kg to 0.0213±0.037mg/kg), Cr ranged from (0.029±0.006mg/kg to 0.409±0.0386mg/kg), Cu ranged from (2.116±0.773mg/kg to 3

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Oriakpono, Obemeata Emmanuel, and Victory Ima-Owaji Gabriel. "Plankton composition and heavy metal concentrations in fish from Bundu-Ama Creek, Port Harcourt, Rivers State." World Journal of Biology Pharmacy and Health Sciences 10, no. 1 (2022): 008–18. https://doi.org/10.5281/zenodo.6965422.

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This study examines plankton composition and diversity as well as the heavy metal concentrations in fish from Bundu-ama creek, rivers State, Nigeria. The heavy metals tested were Nickel (Ni), copper (Cu), chromium (Cr), Zinc (Zn), Cadmium (Cd), using Atomic Absorption Spectrophotometer. The results for the heavy metals are as follows; Ni was below detectable limit throughout the points in the first month, while in the second month and third month it ranged from (0.038±0.046mg/kg to 0.0213±0.037mg/kg), Cr ranged from (0.029±0.006mg/kg to 0.409±0.0386mg/kg), Cu ranged

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5

Kim, Dong-Il, Ku-Rak Jung, Yoon-Soo Jung, and Jae-Yeol Kim. "Detectable Depth of Copper, Steel, and Aluminum Alloy Plates with Pulse-Echo Laser Ultrasonic Propagation Imaging System." Metals 11, no. 10 (2021): 1607. http://dx.doi.org/10.3390/met11101607.

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Pulse-echo laser ultrasonic propagation imaging is a nondestructive testing technique developed for composite materials and aluminum alloys used in aerospace. Although this method has been in usage for a considerable time, information of the detectable depth and the relationship between ultrasonic frequencies and the acoustic properties of metals is not readily available. Therefore, we investigate the A-scan and C-scan ultrasonic testing data of aluminum alloy, hot rolled steel, stainless steel, and copper alloy, which are used in aircraft bodies, frameworks, and gas pipelines. Experiments are

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Ekaete David Udo, EnoAbasi Deborah Anwana, and Felix Okpaku Ogbemudia. "Impact of heavy metals in plant tissues (roots, stems and leaves) of Acrostichum aureum (L.) in the coastal regions of Akwa Ibom State, Nigeria." World Journal of Advanced Research and Reviews 26, no. 1 (2025): 2599–605. https://doi.org/10.30574/wjarr.2025.26.1.1210.

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This study investigated the impact of heavy metals in the plant tissues in the coastal regions of Akwa Ibom State. This study was carried out at three mangrove locations within Iko Town, Okoroutip and Uta Ewa in Eastern Obolo, Ibeno and Ikot Abasi Local Government Areas respectively. Vegetation sampling and analysis of heavy metals in plant tissues was done using acid digestion for inductively coupled plasma optical emission spectrophotometry. The study analyzed the seasonal characterization of heavy metals in A. aureum tissues (leaf, stem, root) across mangrove communities during dry and wet

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Ali, Daban, Nasreen Abdulrahman, and Bayan Rahim. "Some Heavy Metals Status and Water quality parameters of Darbandikhan Dam, Sirwan and Tanjaro." Kirkuk University Journal For Agricultural Sciences 14, no. 1 (2023): 129–48. http://dx.doi.org/10.58928/ku23.14111.

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Three stations were used for this study, including the Darbandikhan Dam at coordinates 35°7'16"N, 45°43'18"E, the Sirwan River at coordinates 35°7'17"N, 45°50'54"E, and the Tanjaro River at coordinates 35°14'22"N, 45°51'58"E, to examine the concentration of heavy metals there over a six-month period. The studied heavy metals include Hg, Cd, Pb, Cu, Co and Cr analyzed by ICP-OES (Spectro acros). Temperature values range between 13-30.9 Cº, Dissolved Oxygen value ranged between 4.82- 9.5 mg L-1, pH values varied between 6.11-7.97, Total Hardness level exceed (100mg L-1), The sulphate value was b

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8

Okoro, Samson Eruke, Ellena Sylver-Ikurusi, and Samuel C. Onuoha. "Human Health Risk Assessment of Heavy Metals and Polycyclic Aromatic Hydrocarbons in Seafood from Southern Nigeria’s Coastal Regions." Asian Journal of Research in Biochemistry 15, no. 1 (2025): 101–14. https://doi.org/10.9734/ajrb/2025/v15i1355.

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Aim: The levels of heavy metals and polycyclic aromatic hydrocarbons (PAHs) in tilapia fish, prawn, oyster and periwinkle samples from southern Nigeria’s coastal regions were evaluated to determine possible human health risk associated with consumption. Study Design: Ten (10) samples each of the selected seafood were collected from mangrove swamps along Bakana River in the study area. The samples were analyzed for nutrient levels and concentrations of toxic metals and PAHs. Methodology: The concentrations of heavy metals and PAHs in the selected seafood samples were determined using Gas Chroma

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9

Prasath, P. Martin Deva, and T. Hidayathulla Khan. "Impact of Tsunami on the Heavy Metal Accumulation in Water, Sediments and Fish at Poompuhar Coast, Southeast Coast of India." E-Journal of Chemistry 5, no. 1 (2008): 16–22. http://dx.doi.org/10.1155/2008/132014.

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Investigations on the accumulation of heavy metals (Zn, Cu, Fe, Mn, Co, Pb, Cd and Ni) in water, sediments and fish (Mugil cephalus) using Atomic Absorption Spectrophotometer at Poompuhar coast, lying along the southeast coast of India was studied before and after tsunami. Accumulation of heavy metals was observed in the order of Sediments > Fish > Water. In water, the order was found to be Mn > Fe > Zn > Cu > Ni > Cd > Co > Pb; Mn recorded a maximum of 506.9µ. L-1and Pb recorded a minimum of 0.006µ. L-1. In sediments, the order was Mn > Fe > Cu > Zn > Pb

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10

Rigney, D. A., and J. E. Hammerberg. "Unlubricated Sliding Behavior of Metals." MRS Bulletin 23, no. 6 (1998): 32–36. http://dx.doi.org/10.1557/s0883769400030608.

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Scientists and engineers still debate the relative contributions of roughness and interlocking of asperities, adhesion and interatomic forces, and elastic and plastic deformation in friction phenomena. However a central point of agreement does exist: Friction involves energy dissipation, or the conversion of mechanical work into heat. Therefore any mechanism that allows for this energy dissipation during sliding interactions of materials deserves consideration, whether it occurs strictly at the nominal sliding interface or within material at some distance from that interface.If the interaction

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II Ujah, INE Onwurah, and OE Onovo. "An evaluation of concentrations of arsenic, nickel, cadmium and chromium from the Onitsha segment of the River Niger." International Journal of Scholarly Research in Science and Technology 2, no. 2 (2023): 016–21. http://dx.doi.org/10.56781/ijsrst.2023.2.2.0022.

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This study was carried out to determine the concentration of arsenic, nickel, cadmium and chromium in the water, sediments and fish from Atani, Bridgehead and Otuocha segments of river Niger. The results indicated that arsenic concentration in the water, sediments and fish from the three segments were highest compared to other heavy metals analysed. Chromium was not detectable in the water, sediments and fish samples from the three segments. The order of the concentrations of the heavy metals from this results showed that in all the segments (As>Ni>Cd>Cr). Heavy metals accumulated in

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Najamuddin, Tri Prartono, Harpasis s. Sanusi, and I. Wayan Nurjaya. "DISTRIBUTION AND BEHAVIOUR OF DISSOLVED AND PARTICULATE Pb AND Zn IN JENEBERANG ESTUARY, MAKASSAR." Jurnal Ilmu dan Teknologi Kelautan Tropis 8, no. 1 (2016): 11–28. http://dx.doi.org/10.29244/jitkt.v8i1.12494.

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ABSTRACTDissolved and particulate heavy metals play a role in geochemical cycle as an agent in adsorption-desorption, deposition-resuspension, and dispersion mechanisms of heavy metals in water environment. The objectives of this research were to determine the distribution and behaviour of dissolved and particulate heavy metals Pb and Zn in different seasons (west and east seasons) at Jeneberang Estuary of Makassar. Concentrations of Pb and Zn were analysed using Atomic Adsorption Spectrophotometry based on APHA, AWWA, WEF (2005). The concentration of dissolved Pb in the riverine, estuarine, a

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13

Dai, Susie Y., Ben Jones, Kyung-Min Lee, Wei Li, Lynn Post, and Timothy J. Herrman. "Heavy Metal Contamination of Animal Feed in Texas." Journal of Regulatory Science 4, no. 1 (2016): 21–32. http://dx.doi.org/10.21423/jrs-v04n01p021.

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The management of animal feed safety risks using a risk management framework begins with identifying and quantifying the presence of hazards. For animal feed, a paucity of information exists about the presence of heavy metal in feed ingredients, premixes, and finished feed. This study examines 564 feed samples over a period of five years (2010-2015) collected by Texas Feed and Fertilizer Control Service (FFCS) investigators using ocial sampling and chain-of-custody techniques. Samples were prepared and analyzed in the Oce of the Texas State Chemists laboratory (Agricultural Analytical Service)

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Alnuwaiser, Maha Abdallah. "Analysis of Heavy Metals Contents in Lipsticks and Cosmetics Available in Saudi Arabia by ICP-OES." Asian Journal of Chemistry 31, no. 12 (2019): 2959–63. http://dx.doi.org/10.14233/ajchem.2019.22353.

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The current paper describes the analysis of heavy metals contents in lipsticks and cosmetics being sold in Riyadh markets and compares heavy metals contents present in cosmetics of some other countries. An analytical technique called inductively-coupled plasma optical emission spectroscopy (ICP-OES) determines content for metals like As, Hg, Pb, Cd and Al in some of the most famous and widely sold lipsticks in Riyadh markets. An analysis is conducted across some expensive and some cheap brands that claim to be "organic" and "medicinal", with emphasis on the Chinese brand of lipsticks. Various

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15

Akinpelu, O. E., A. F. Akindele, and A. A. Adeyi. "Heavy metals in honey consumed in Southwest, Nigeria and its human health risk." Ife Journal of Science 27, no. 1 (2025): 31–43. https://doi.org/10.4314/ijs.v27i1.4.

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Honey is an agricultural product known for its nutritional and various medicinal values. There is a global concern about the challenges posed to human health by the toxicity of heavy metals from consumer goods, including agricultural products. Levels of heavy metals (lead, cadmium, copper, iron, zinc, and nickel) in some selected honey samples that were randomly collected from the Southwest geopolitical zone of Nigeria were assessed using Atomic Absorption spectroscopy. The concentrations (mg/kg) of lead, cadmium, copper, iron, zinc, and nickel ranged from 0.31±0.2 to 0.94±0.4 Pb, not detectab

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16

Zhen, Shu Cong, Yong Xun, and Bu Quan Miao. "Solidification/Stabilization of Heavy Metals by Magnesium Potassium Phosphate Cement." Advanced Materials Research 664 (February 2013): 683–89. http://dx.doi.org/10.4028/www.scientific.net/amr.664.683.

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Heavy metals, including Pb, Cr, Cd, Zn, Cu and Ni, were solidified/stabilized by magnesium potassium phosphate cement (MKPC). The unconfined compressive strength test shows that the strengths of the solidified bodies containing 10%-40% MKPC all exceeded 0.5 MPa, which have met the requirements of storage and landfilling. The toxicity characteristic leaching procedure (TCLP) test shows that no detectable Pb, Cr and Cd were leached from the solidified body containing 40% MKPC after being cured standardly for 28 days, and the concentrations of heavy metals leached from the solidified body contain

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17

Sarfraz, Muhammad, Qazi Mohammed Omar, Z. Gulfraz, Farhat Yasmeen, and Javeed Ashraf Awan. "Estimation of toxic metal contamination levels in beverages samples collected from Lahore city in Pakistan." Journal of the Pakistan Institute of Chemical Engineers 47, no. 1 (2019): 25–34. http://dx.doi.org/10.54693/piche.04713.

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The present study was conducted to evaluate the risk associated to human health by heavy metals through the intake of beverages (fruit juices, soft and energy drinks) excessively used in city Lahore, Pakistan. The concentration in ppm of heavy metals (Pb, Cr, Co, Cd, Zn and Ni) in 17 popular beverages has been investigated by using Flame Atomic Absorption Spectrophotometer (AAnalyst 400-PerkinElmer). A range of standard solutions were prepared according to the standard methods governed by American Public Health Association. It has been observed that concentration of some heavy metals (i.e Pb,

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18

Samson Eruke Okoro and Progress Mamojasa. "Risk assessment of heavy metals and polycyclic aromatic hydrocarbons in surface water and white croaker fish from bonny river, Southern Nigeria." International Journal of Science and Research Archive 15, no. 1 (2025): 1701–13. https://doi.org/10.30574/ijsra.2025.15.1.1254.

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This study evaluated the proximate profile of fish and levels of heavy metals and polycyclic aromatic hydrocarbons (PAHs) in selected seafood and surface water from Bonny River in Rivers State, Nigeria. The laboratory analyses were done using standard methods. Proximate analysis of sampled fish parts showed fish skin to be richer in moisture and crude protein content. The physicochemical parameters of surface water obtained from Bonny River showed values within USEPA recommended standards. The mean concentration of heavy metals varied across the analyzed samples, although Hg was below detectab

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Schaeffer, Joshua W., John L. Adgate, Stephen J. Reynolds, et al. "A Pilot Study to Assess Inhalation Exposures among Sugarcane Workers in Guatemala: Implications for Chronic Kidney Disease of Unknown Origin." International Journal of Environmental Research and Public Health 17, no. 16 (2020): 5708. http://dx.doi.org/10.3390/ijerph17165708.

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Background: Sugarcane workers in Central America experience a heavy burden of chronic kidney disease of unknown origin. We conducted a pilot study among worker proxies in Guatemala to characterize exposures to particulate matter, silica, heavy metals, and glyphosate, as well as to examine potential nephrotoxic exposures. Methods: Air, soil, and ash samples were collected and analyzed using scanning electron microscopy, X-ray diffraction, inductively coupled plasma mass spectrometry, and an enzyme-linked immunosorbent assay. Results: The average mass concentration for particulate matter (PM)2.5

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Levitt, Miriam. "Toxic metals, preconception and early childhood development." Social Science Information 38, no. 2 (1999): 179–201. http://dx.doi.org/10.1177/053901899038002001.

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Exposure to lead and other heavy metals is now considered a risk factor in fetal and early childhood developmental deficits, premature birth, low cranial circumference, lower IQ, learning disabilities, attention deficit disorders (ADD) or hyperactivity (ADHD), and reduced impulse control. Studies suggest that blood lead levels as low as 10 micrograms per deciliter can result in detectable physical, cognitive, and psychobehavioral deficits in children. According to recent CDC findings, the major sources of lead exposure include deteriorated paint in older housing, and dust and soil that are con

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Albashr, Tariq Kh M., Suhad Al-Magsoosi, Nashmil Jawhar Rashid, and Zaid Kh Khidhir. "Determine the levels of heavy metal residues in different parts of chicken in the Tikrit and Beji cities of Iraq." Tikrit Journal for Agricultural Sciences 24, no. 2 (2024): 311–27. http://dx.doi.org/10.25130/tjas.24.2.22.

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The aim of this study was to determine the level of heavy metal residues in different parts of local chicken meat (thigh, bone, liver, and breast) obtaining from different houses in the Iraqi cities of Tikrit and Beji. Heavy metal contamination in poultry products is a major concern due to its potential health effects on consumers. Samples were collected from local markets and analyzed for the presence of cadmium (Cd), copper (Cu), cobalt (Co), and lead (Pb) using atomic absorption spectroscopy (AAS). The results indicated that chicken parts all sampled contained detectable level of heavy meta

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Mitiu, Mihaela Andreea, Maria Iuliana Marcus, Maria Vlad, and Cristina Mihaela Balaceanu. "Stability of Ceramic Glazes Obtained by Valorification of Anorganic Pigments Extracted from Electroplating Sludge." Revista de Chimie 69, no. 3 (2018): 571–74. http://dx.doi.org/10.37358/rc.18.3.6151.

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This paper presents the results of the research activity in order to etablish the stability and leaching potential of ceramic tiles which have been developed using glazes colored with pigments obtained by the extraction of chromium and iron metals from electroplating sludge. All these ceramic tiles contain various amounts of heavy metals in their glazes due to the pigments composition. The ceramic samples have been subjected to leaching tests in order to detect if various elements of relevance such as chromium, lead, cadmium, zinc or iron migrated to any great extent into test solutions. Leach

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Mathew, Anusha. "Bioaccumulation of heavy metals in Metapenaeus monoceros (Fabricius-1798) from Krishnankotta (Kodungallur), Moolampilly (North & South), Vallarpadam of Central Kerala." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 05 (2025): 1–9. https://doi.org/10.55041/ijsrem48161.

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Abstract: Anthropogenic activities led to the contamination of estuaries of Central Kerala to a great extent. Heavy metals disposed to estuaries through industrial discharge, yard runoff, agricultural activities and storm drains shows a bioaccumulation in the tissues of aquatic animals. In the present study Metapenaeus monoceros, the speckled shrimp and associated water and sediments were collected from four different sites of Central Kerala Division, to gauge the accumulation of heavy metals. Atomic Absorption Spectrophotometer was performed for the analysis of heavy metals like Pb, Fe, Cd, C

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Melcer, Henryk, Hugh Monteith, and Stephen G. Nutt. "Variability of Toxic Trace Contaminants in Municipal Sewage Treatment Plants." Water Science and Technology 20, no. 4-5 (1988): 275–84. http://dx.doi.org/10.2166/wst.1988.0177.

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The variability of toxic trace contaminants in influents and effluents at three full-scale municipal sewage treatment plants was measured by collecting grab samples of degritted raw wastewater and non-chlorinated secondary effluent at two hour intervals over eight consecutive days. The samples were analyzed for metals, conventional contaminants and a range of organic trace contaminants. The metals and volatile organic compounds were the dominant contaminants found in the influents. In the effluents, organic concentrations were close to detectable levels and polyaromatic hydrocarbons were almos

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Ondo, Aubin, Pascale Prudent, Catherine Massiani, et al. "Impact of urban gardening in equatorial zone on soils and metal transfer to vegetables." Journal of the Serbian Chemical Society 78, no. 7 (2013): 1045–53. http://dx.doi.org/10.2298/jsc120915116o.

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This study aimed at assessing the impact of urban agriculture on physicochemical soil properties and the metal uptake by some leafy vegetables cultivated in urban soils of Libreville, Gabon. Cultivated and uncultivated top-soil and vegetable samples were collected on two urban garden sites, and analyzed. The results showed that there was strong acidification and a decrease of nutrient and metal concentrations in soils due of agricultural practices. The metal transfer to plants was important, with the exception of iron. The non-essential metal cadmium and lead were not detectable in plant tissu

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Muloogi, Derick, Irene Nalumansi, and Denis Byamugisha. "Levels of Hydroquinone, Selected Heavy Metals (Hg, Pb, As) and Chemical requirements in Some Skin Lightening Creams Sold in Mbarara Municipality." European Journal of Physical Sciences 4, no. 1 (2021): 15–34. http://dx.doi.org/10.47672/ejps.748.

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In this study, Skin-lightening creams commonly sold in Mbarara municipality were analyzed for chemical parameters (pH, thermal stability and fatty substance content), total hydroquinone, Lead, Mercury, and Arsenic contents. Total heavy metal content was determined by atomic absorption spectrophotometry. The levels of hydroquinone were determined using High Performance liquid chromatography (HPLC). All the creams showed detectable mean levels of mercury, ranging from 0.07±0.01ppm to 0.33±0.01ppm. Only 26.31% of the creams showed detectable levels of lead and 15.79% creams recorded detectable le

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CORREDERA, LOURDES, SUSANA BAYARRI, CONSUELO PÉREZ-ARQUILLUÉ, REGINA LÁZARO, FRANCISCO MOLINO, and ANTONIO HERRERA. "Evaluation of Heavy Metals and Polycyclic Aromatic Hydrocarbons in Honeys from Different Origins." Journal of Food Protection 77, no. 3 (2014): 504–9. http://dx.doi.org/10.4315/0362-028x.jfp-13-223.

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A survey of honey samples from different geographical and botanical origins, including some samples collected from a fire-affected area in Spain, was conducted to assess their content of heavy metals and polycyclic aromatic hydrocarbons (PAHs). The levels of the determined toxic elements (Pb, Cd, As, and Sn) were low and were in the range of those reported by other studies. In our work the total amount of heavy metals and Pb was higher in dark honeys than in pale honeys. In the collected samples, no detectable levels of the 15 PAHs studied were found. The obtained data served to assess the lev

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Cao, Can, Hua Ye, Guo Hui Chen, and Li Na He. "Determination of Heavy Metal Elements in Farm Products Taros and Agricultural Soil by Inductively Coupled Plasma-Optical Emission Spectrometry and Assessment." Advanced Materials Research 233-235 (May 2011): 1132–35. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.1132.

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This study was designed to determine the heavy metal concentrations in soils and food crops and estimate the potential health risks of metals to polluted food crops and soil, so agricultural soil for the cultivation and taro were main objects of study, taro were taken in the HNO3-H2O2 wet digestion, while soil were taken to HCl-HNO3-HF-HClO4 wet digestion by (ICP-OES),then coments and analysis on the samples were carried out by comparing with their limits of relative state standards. The analytical results indicate that for all of the analyzed elements the relative standard deviations (RSD) ar

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Martin, Ronald R., T. K. Sham, G. Wong Won, et al. "Secondary ion mass spectroscopy and synchrotron X-ray fluorescence in the study of the qualitative variation in metal content with time in tree rings." Canadian Journal of Forest Research 28, no. 10 (1998): 1464–70. http://dx.doi.org/10.1139/x98-131.

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Secondary ion mass spectroscopy and synchrotron X-ray fluorescence analysis have been used to document the changes in metal content across the ring system of trees from northern Canada. The results show a seasonal qualitative variation in the uptake of Na, Al, K, Ca, Cr, Mn, Fe, Cu, and Zn. Diffusional models show that locally elevated concentrations of selected metals are sufficiently stable within individual rings that variations in content among rings remain at detectable levels for at least a century.

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AlMisned, Ghada, Tariq Al-Abdullah, Fatai Liadi, and Adil Hawsawi. "Improving a PGNAA Technique to Detect Heavy Metals in Solid Samples." Applied Sciences 12, no. 8 (2022): 3714. http://dx.doi.org/10.3390/app12083714.

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Prompt gamma-ray neutron activation analysis (PGNAA) is a useful approach for determining the concentrations of a variety of elements in natural materials, either online or in situ, without affecting their chemical forms in matter. The current research aimed to improve the yield of a portable PGNAA setup using a dc beam of 2.5 MeV neutrons and a CeBr3 detector to record gamma rays from neutron inelastic scatterings. It is impossible to avoid the superimposition of heavy metal gamma rays and those from the detector’s element. However, tests were carried out to improve the signal-to-background r

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Landrau-Giovannetti, Nelmarie, Ryanne Murray, Stephen Reichley, et al. "Tissue Element Levels and Heavy Metal Burdens in Bottlenose Dolphins That Stranded in the Mississippi Sound Surrounding the 2019 Unusual Mortality Event." Toxics 13, no. 6 (2025): 511. https://doi.org/10.3390/toxics13060511.

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In 2019, an unusual mortality event (UME) affected bottlenose dolphins (Tursiops truncatus) in the Mississippi Sound (MSS) following an extended dual opening of the Bonnet Carré Spillway (BCS), which prevents flooding in New Orleans. This resulted in low salinity, skin lesions, and electrolyte imbalances in dolphins. Additionally, the influx likely altered the MSS’s environmental chemical composition, including levels of heavy metals and metalloids; thus, we quantified heavy metals, metalloids, and essential elements in the tissues of dolphins that stranded in the MSS before and after the 2019

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Ramos, G. Ramis, M. C. Garcia Alvarez-Coque, B. W. Smith, N. Omenetto, and J. D. Winefordner. "Ultratrace Determination of Metals with Dithizone by Thermal Lens Spectrophotometry." Applied Spectroscopy 42, no. 2 (1988): 341–46. http://dx.doi.org/10.1366/0003702884428167.

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A pump-probe thermal lens instrument was constructed, evaluated, and applied to the determination of metals after extraction with dithizone in carbon tetrachloride. An argon-ion laser operated at 514.5 nm, with a power of just 22 mW at the cuvette position and chopped at 2 Hz, and a He-Ne laser were used as a pump and probe, respectively. The thermal lens effect was measured by a pinhole-photodiode and a lock-in amplifier. Evaluation of the setup with an iodine solution in carbon tetrachloride gave a minimum detectable absorbance of 5 × 10−6 (S/N = 3), the upper limit of the dynamic range bein

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Odunaike, Kola. "Heavy Metals Pollutions within Lagos South Western Nigeria." BASRA JOURNAL OF SCIENCE 40, no. 1 (2022): 231–40. http://dx.doi.org/10.29072/basjs.20220114.

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Environmental pollution is a global phenomenon which could results from both natural and anthropogenic activities which has resulted to several health and physiological problems in both plants and animals. Dump sites’ soils of and Borehole waters from Ojota, Ebutte-Meta, Igando and Bariga in Lagos state were analyzed for heavy metals using atomic absorption spectrophotometer. The data obtained were further subjected to contamination factor and pollution indices analyses. The results obtained showed lead (Pb) to be most concentrated in the soils and ranged from 0.22 ppm to 2.50 ppm, this was fo

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Mulware, Stephen Juma. "Comparative Trace Elemental Analysis in Cancerous and Noncancerous Human Tissues Using PIXE." Journal of Biophysics 2013 (May 16, 2013): 1–8. http://dx.doi.org/10.1155/2013/192026.

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The effect of high or low levels of trace metals in human tissues has been studied widely. There have been detectable significant variations in the concentrations of trace metals in normal and cancerous tissues suggesting that these variations could be a causative factor to various cancers. Even though essential trace metals play an important role such as stabilizers, enzyme cofactors, elements of structure, and essential elements for normal hormonal functions, their imbalanced toxic effects contribute to the rate of the reactive oxygen species (ROS) and formation of complexities in the body c

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A.D., Babare, Jadhav R.R., M. Gochde R., and Babare M.G. "Analysis of Heavy Metals Concentration in Water and Sediment from Bori River, Naldurg Maharashtra." International Journal of Advanced Biotechnology and Research 12, no. 4 (2021): 13–15. https://doi.org/10.5281/zenodo.5599129.

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<strong>ABSTRACT</strong> The present communication deals with the study of analysis of heavy metal concentration in water and sediment from Bori  River Naldurg, Maharashtra. The work was carried out during the year 2014 (January to December). The results of the present work shows that, the heavy metal content from the non-polluted zone of Bori River (Naldurg) water was found below detectable level. Samples from polluted zone showed variations in their heavy metal content in River water and sediment. The higher concentration of heavy metals is due to the local domestic and agricultural wa

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Adams, P. M., S. Kenderian, and A. Gregorian. "A digital radiography study of the detectability of simulated cracks in 301 stainless steel." Insight - Non-Destructive Testing and Condition Monitoring 65, no. 9 (2023): 508–13. http://dx.doi.org/10.1784/insi.2023.65.9.508.

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A series of simulated cracks in 301 stainless steel (SS), consisting of slits with depths from 12.8% to 40% of the plate thickness, is fabricated in this study. The examination includes a microfocus X-ray tube and a digital detector array (DDA) with 0.075 mm pixels at three angles of incidence (0°, 5° and 10°). The basis of the methodology for the minimum detectable slit width stems from the noise statistics in the images and a minimum detectable contrast-to-noise ratio (CNR) of 3. These minimum detectable widths range from 0.019 mm to 0.003 mm for 12.8%-deep and 40.0%-deep slits, respectively

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Omeje, Kingsley O., Benjamin O. Ezema, Finbarr Okonkwo, et al. "Quantification of Heavy Metals and Pesticide Residues in Widely Consumed Nigerian Food Crops Using Atomic Absorption Spectroscopy (AAS) and Gas Chromatography (GC)." Toxins 13, no. 12 (2021): 870. http://dx.doi.org/10.3390/toxins13120870.

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More still needs to be learned regards the relative contamination of heavy metals and pesticide residues, particularly those found in widely consumed Nigerian food crops like cereals, vegetables, and tubers. In this current study, the heavy metals and pesticide residues detectable in widely consumed Nigerian food crops were respectively quantified using atomic absorption spectroscopy (AAS) and gas chromatography (GC). Specifically, the widely consumed Nigerian food crops included cereals (rice, millet, and maize), legume (soybean), tubers (yam and cassava), as well as leaf (fluted pumpkin, Ama

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Fadel, D., A. Argyraki, S. Papageorgiou, and E. Kelepertzis. "HEAVY METALS IN CULTIVATED SOIL AND PLANTS OF DAMOUR URBAN AREA - LEBANON." Bulletin of the Geological Society of Greece 50, no. 4 (2017): 2108. http://dx.doi.org/10.12681/bgsg.14262.

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Preliminary data on heavy metals concentrations in soil and edible plants of DamourLebanon are presented for the first time. Concentration ranges of Zn, Cu, Ni, Cr, Co, Mn, Fe, Ba, Pb and Cd in soils and vegetables collected from urban allotments in Damour were determined and assessed taking into account the pseudototal (extracted by aqua regia) and mobilizable (0.43 M acetic acid extractable) concentrations of the elements in the rhizosphere soil of the plants as well as the total concentrations in edible plant tissue. Average elemental concentrations in urban allotments are low in general. N

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Nyangena, Decrah Moraa, James Oagare Arasa, and Timothy Omara. "Occurrence of priority trace metals in tomatoes (Solanum lycopersicum L.) from some areas of Uasin Gishu County, Kenya." French-Ukrainian Journal of Chemistry 8, no. 2 (2020): 83–92. http://dx.doi.org/10.17721/fujcv8i2p83-92.

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This study determined the concentration of zinc, lead and cadmium in tomatoes consumed in some areas of Uasin Gishu, Kenya. Samples were taken in quintuplicate from Huruma and Bahati estates (Eldoret) and Chebaiywo (Kesses) and their metalliferous content were determined by atomic absorption spectroscopy. All samples had detectable levels of trace metals, with lead recording the highest concentration of 43.20 ± 0.31 mg/kg. Zinc concentrations were below WHO guidelines. Daily intakes ranged from 8.25 × to 2.59 × mg/kg/day. Though there are no probable cancer risks, hazard quotients indicated th

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B. Waman, Mohan, R. K. Nagaraju, Shankar L. Laware, and Kaduru Raju. "Physio-Chemical and Heavy Metal Analysis of Waste Foundry Sand." Ecology, Environment and Conservation 28, no. 04 (2022): 1925–30. http://dx.doi.org/10.53550/eec.2022.v28i04.041.

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Foundries in Kolhapur and Pune dumps nearly 700-1000 tons of processed waste foundry sand annually in landfills causing severe land and water contamination. This practice is causing enormous pressure on foundries to look for an alternative option of reusing it in other applications. In this study we analyzed waste foundry samples from landfill and foundries for physical (clay, sand, and silt), moisture content, chemical properties (pH, CEC, and organic carbon) and heavy metals limits with an aim for using it in soil related applications. After analysis we found samples, texture is silt loamy w

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Basnet, Shishir, Sulochana Shrestha, and Arvind Pathak. "Arsenic, Lead and Cadmium contamination and pH analysis of skincare cosmetics found in Nepalese market." Scientific World 18, no. 18 (2025): 81–85. https://doi.org/10.3126/sw.v18i18.78366.

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Cosmetics are skin and hair care materials used to beautify and enhance appearance, and the demand for cosmetics is increasing rapidly. The increased consumption of cosmetic products to nurture skin poses the problem of the presence of excessive heavy metals and their impact on consumers. This research aimed to assess the levels of arsenic (As), lead (Pb), cadmium (Cd), and pH in five different popular cosmetic creams currently available in the Nepalese market. The lead and cadmium concentrations were determined by Atomic Absorption Spectroscopy (AAS), while the continuous hydride generation m

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Iessa, Kaes Rateb, and Mohammed Hamdan. "Assessment of the Concentrations of some Heavy Metals in some Vegetables Traded in the Local Market in Sebha City - Libya." JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Development 1, no. 2 (2024): 20–26. http://dx.doi.org/10.62671/jataed.v1i2.32.

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Consuming vegetables as food offers rapid and least means of providing adequate vitamins, minerals, and fibers. Vegetables used as food include those used in making soups or as integral parts of the primary sources of a meal. Leafy vegetables occupy a significant place in the human diet. Environmental exposure to heavy metals is a well-known risk factor for human health. The concentration of the heavy metals (Cu, Pb, Cd, and Cr) in vegetables from the Sebha market was determined using Atomic Absorption Spectroscopy AAS). In the Sebha local market, different vegetable types from different locat

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Burton, J. D., and E. Y. Tsymbal. "Magnetoelectric interfaces and spin transport." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370, no. 1977 (2012): 4840–55. http://dx.doi.org/10.1098/rsta.2012.0205.

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Engineered heterostructures designed for electric control of magnetic properties, the so-called magnetoelectric interfaces , present a novel route towards using the spin degree of freedom in electronic devices. Here, we review how a subset of such interfaces, namely ferromagnet–ferroelectric heterostructures, display electronically mediated control of magnetism and, in particular, emphasis is placed on how these effects manifest themselves as detectable spin-dependent transport phenomena. Examples of these effects are given for a variety of material systems on the basis of ferroelectric oxides

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Machida, Yo, Valentina Martelli, Alexandre Jaoui, Benoît Fauqué, and Kamran Behnia. "Phonon hydrodynamics in bulk insulators and semimetals." Low Temperature Physics 50, no. 7 (2024): 574–83. http://dx.doi.org/10.1063/10.0026323.

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Decades ago, Gurzhi proposed that if momentum-conserving collisions prevail among heat-carrying phonons in insulators and charge-carrying electrons in metals, hydrodynamic features will become detectable. In this paper, we will review the experimental evidence emerging in the last few years supporting this viewpoint and raising new questions. The focus of the paper will be bulk crystals without (or with a very dilute concentration of) mobile electrons and steady-state thermal transport. We also discuss the possible link between this field of investigation and other phenomena, such as the hybri

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Widyasari, Ni Luh, and I. Gusti Ngurah Made Wiratama. "Studi Teknik Bioremediasi Tanah Tercemar Logam Berat Dengan Menggunakan Eco-Enzyme." Jurnal Ecocentrism 1, no. 2 (2021): 89–95. http://dx.doi.org/10.36733/jeco.v1i2.2303.

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The technique of remediation of heavy metal contaminated soil can be done biologically with the help of microorganisms. Bioremediation is a soil remediation technique that uses enzymes from microorganisms in an effort to rehabilitate soil. The bioremediation mechanism occurs when enzymes derived from the activity of microorganisms interact with heavy metals in the soil and then convert them into uncomplicated chemical structures so that the level of heavy metal toxicity decreases. Among biological agents, enzymes have great potential to effectively convert and detoxify pollutant substances bec

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Oluwakemi, Oyelowo, Awobajo Funmileyi, Samuel Titilola, Sogbesan Teniola, Fayiga Adewale, and Mofolorunso Adekunle. "Condition factor, heavy metals and polychlorinated biphenyls (PCBs) in the muscle of fishes harvested in, and imported into Lagos, Nigeria." Aceh Journal of Animal Science 5, no. 1 (2020): 38–46. http://dx.doi.org/10.13170/ajas.5.1.14995.

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Fish is an important part of the human diet, are at the top of the aquatic food chain with a high propensity to accumulating contaminants like heavy metals and polychlorinated biphenyls (PCBs) which are toxic to humans. The objective of this study was to evaluate the relationship between condition factor (physiologic wellbeing) of the fishes, PCBs, and heavy metal accumulation.Ten adult fish species three each of Chrysichthys nigrodigitatus, Trachinotus teraia, Liza dumerilli, Tilapia guieensis, Pseudotolithus elongatus, Pomadasys jubelini, Polydactylus quadrifilis, Caranx hippos, Sphyreana ba

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Zafalon, Rafael Vessecchi Amorim, Mariana Pamplona Perini, Thiago Henrique Annibale Vendramini, et al. "Vitamin-mineral supplements do not guarantee the minimum recommendations and may imply risks of mercury poisoning in dogs and cats." PLOS ONE 16, no. 4 (2021): e0250738. http://dx.doi.org/10.1371/journal.pone.0250738.

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Given the importance of using the vitamin-mineral supplements to guarantee the minimum nutritional recommendations for pets in homemade foods, and hypothesizing that these products may contribute to toxic metals contamination, the present study aimed to determine the concentrations of essential minerals and toxic metals in vitamin-mineral supplements available in the Brazilian market and calculate if the amount recommended by the manufacturer guarantees the minimum recommendations of NRC (2006) and FEDIAF (2020), as well as calculating the amount of toxic metals that animals would consume, acc

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Gonzalez-Jimenez, Nathalie, Naudia Gray, R. Pappas, et al. "Analysis of Toxic Metals in Aerosols from Devices Associated with Electronic Cigarette, or Vaping, Product Use Associated Lung Injury." Toxics 9, no. 10 (2021): 240. http://dx.doi.org/10.3390/toxics9100240.

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Research gaps exist in toxic metals characterization in e-cigarette, or vaping, products (EVPs) as these analytes typically have low concentrations and most standard aerosol trapping techniques have high metals background. An additional complication arises from differences in the EVP liquid formulations with nicotine products having polar properties and non-nicotine products often being non-polar. Differences in polar and non-polar matrices and the subsequent aerosol chemistries from various EVPs required modifications of our previously reported nicotine-based EVP aerosol method. Validation an

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Boiteau, Rene M., Sarah J. Fansler, Yuliya Farris, et al. "Siderophore profiling of co-habitating soil bacteria by ultra-high resolution mass spectrometry." Metallomics 11, no. 1 (2019): 166–75. http://dx.doi.org/10.1039/c8mt00252e.

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Sembada, Anca Awal, and I. Wuled Lenggoro. "Nanopriming of Tomato (Solanum lycopersicum) Seeds Against Heavy Metal Stress During Germination and Seedling Formation." BIO Web of Conferences 91 (2024): 01005. http://dx.doi.org/10.1051/bioconf/20249101005.

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Abiotic stress can have a negative impact on plant growth. Heavy metal is one of the examples. One approach to overcome this issue is to use seed priming. The priming used in this study was nanopriming. We used colloidal silica nanoparticles (size of 10 nm) as the priming agent and copper (Cu) and barium (Ba) as the model heavy metals. This treatment was implemented for tomato (S. lycopersicum var. Momotaro) seed germination. The results showed that the presence of heavy metals during germination may lead to prolonging the germination time. The presence of Cu and Ba at 1 ppm could increase ger

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