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Artykuły w czasopismach na temat „Mercury”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

CANNON, VERNON T., DELON W. BARFUSS, and RUDOLFS K. ZALUPS. "Molecular Homology and the Luminal Transport of Hg2+ in the Renal Proximal Tubule." Journal of the American Society of Nephrology 11, no. 3 (2000): 394–402. http://dx.doi.org/10.1681/asn.v113394.

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Abstract. The aim of this study was to define mechanisms involved in the luminal uptake of inorganic mercury in the kidney using isolated perfused straight (S2) segments of the proximal tubule. When mercuric conjugates of glutathione (GSH), cysteinylglycine, or cysteine (containing 203Hg2+) were perfused through the lumen, the rates of luminal disappearance flux (JD) of inorganic mercury were approximately 39, 53, and 102 fmol/min per mm, respectively. Thus, the rates of luminal uptake of mercury are greater when the mercury is in the form of a mercuric conjugate of cysteine than in the form o

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2

McKay, S. J., J. N. Reynolds, and W. J. Racz. "Effects of mercury compounds on the spontaneous and potassium-evoked release of [3H]dopamine from mouse striatal slices." Canadian Journal of Physiology and Pharmacology 64, no. 12 (1986): 1507–14. http://dx.doi.org/10.1139/y86-254.

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The effects of mercury compounds on the spontaneous and potassium-evoked release of [3H]dopamine from mouse striatal slices have been examined. All mercury compounds examined produced concentration-dependent increases in the spontaneous release of [3H]dopamine, with an order of potency of methylmercury > mercuric (Hg2+) mercury >p-choloromercuribenzene sulfonic acid. Methylmercury had no effect on the 25 mM potassium evoked release of [3H]dopamine in the presence of 1.3 mM calcium. However, in calcium-free conditions, methylmercury significantly increased the potassium-evoked release of

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3

Kanhiya Mahour. "Mercury retention after Panax ginseng treatment against mercuric chloride intoxication in hepato-haemato indices in albino rats." World Journal of Biology Pharmacy and Health Sciences 13, no. 2 (2023): 345–49. http://dx.doi.org/10.30574/wjbphs.2023.13.2.0113.

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Mercuric chloride was introduced per Os in albino rats (Rattus norvegicus) as per the LD50 (9.26 mg/kg b.w.). The assessment of mercuric chloride toxicity was done both after acute (0.926 mg/kg b.w.) and sub-acute (0.033 mg/kg b.w.) per Os treatment, while Panax ginseng was also introduced (10 mg/kg b.w.) per Os in the albino rats separately. Mercuric chloride treatment significantly increases mercury retention in liver and blood serum along with increase in liver weight, while Panax ginseng alone caused significant decrease in liver weight and mercury retention in liver and blood. Increase in

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4

Degila, Hermione W., N. B. Nadia Azon, Julien G. Adounkpe, A. V. Onésime Akowanou, and Martin P. Aïna. "Mercure: sources d’émission, toxicité, contamination du milieu aquatique et particularité du Benin." International Journal of Biological and Chemical Sciences 13, no. 7 (2020): 3429–48. http://dx.doi.org/10.4314/ijbcs.v13i7.36.

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La prise de conscience collective du pouvoir létal du mercure suite aux intoxications massives au Japon et en Irak ont conduit à l’adoption de la convention de Minamata sur le mercure que le Bénin a signé et ratifié. Le présent article fait la synthèse des connaissances sur son émission, sa toxicité en milieu aquatique avec un accent sur la contamination aquatique au Bénin. Pour y parvenir, des publications scientifiques et les archives des ministères de l’environnement et de la santé au Bénin ont été consultées. Il ressort que, la production artisanale à petite échelle de l’or et la combustio

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5

Staun, Chris, Neetu Bansal, and James Vaughan. "Electrocrystallization and solubility of mercury in alkaline solution." Canadian Journal of Chemistry 96, no. 4 (2018): 385–93. http://dx.doi.org/10.1139/cjc-2017-0592.

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The chemical thermodynamics of mercury in aqueous sodium hydroxide solution has been investigated through electrochemical polarisation and solubility experiments. A review of thermodynamic data allowed determination of the Hg/HgO electrode potential. Cyclic voltammetry revealed a complex anodic reaction beginning with aqueous dissolution of elemental mercury and subsequent electrocrystallization of mercuric oxide. Cathodic sweeps showed dual reduction reactions, attributed to the presence of aqueous mercury and mercuric oxide. The solubility and hence activity of elemental mercury in sodium hy

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6

Purkan, Purkan, Yuliana Firdausi Nuzulla, Sofijan Hadi, and Endang Triwahyu Prasetyawati. "Biochemical Properties of Mercuric Reductase from Local Isolate of Bacillus sp for Bioremediation Agent." Molekul 12, no. 2 (2017): 182. http://dx.doi.org/10.20884/1.jm.2017.12.2.398.

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Mercuric reductase is the important enzyme which catalyzes a reduction of a toxic Hg2+ to non-toxic Hg0. The enzyme which has been potentially used as mercury bioremediation agent is produced by mercury resistant bacteria. These research aims are to determinate the resistance level of a local Bacillus sp to HgCl2 in media, to determine the mercuric reductase activity from the bacteria, and to determine the biochemical properties of the mercuric reductase. The Bacillus sp was grown in the Nutrient Broth media with various of 0; 20; 40; 60; 120; and 160 µM HgCl2 to know the response of the bacte

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7

YOSHITOMI, TOMOYASU, NAOKI YAGINUMA, HIROYUKI ISO, TAKAHIRO ISHIKAWA, HITOSHI IMASEKI, and SHINO HOMMA-TAKEDA. "MERCURY DISTRIBUTION BY MICRO PIXE ANALYSIS IN STENOPSYCHE MARMORATA EXPOSED TO MERCURIC CHLORIDE." International Journal of PIXE 18, no. 01n02 (2008): 69–75. http://dx.doi.org/10.1142/s0129083508001363.

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Aquatic insects, such as caddisflies, are used as reference organisms for water pollution. The precise distribution of contaminated metals in the insect, however, remains unknown. In this study, we used micro PIXE analysis to examine mercury distribution in Stenopsyche marmorata, a typical caddisfly, exposed to mercuric chloride. The mercury level in the caddisflies after exposure to mercuric chloride at 1 mg/L for 5 days was 93.3 ± 25.0 μ g/g wet weight. Micro PIXE analysis also revealed a site-specific distribution of mercury in the insects. Mercury was high in the digestive tract, where it

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8

Ma, Lin Zhuan, Jun Ming Guo, Ying Jie Zhang, et al. "Mercury’s Leaching Contamination in Soil Environment." Advanced Materials Research 581-582 (October 2012): 117–20. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.117.

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Mercury is a material with serious toxicity, and superfluous mercury can pollute large areas. The paper studied the reaction time, pH of the leaching solution, the concentration of mercury of the leaching solution’s effect for mercury’s absorption characterstic and three synergistic effect. The paper obtained some basic data about soil’s mercury pollution.

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9

Mi, Yunpo. "Principle of Mercury precession." Advances in Engineering Technology Research 12, no. 1 (2024): 340. https://doi.org/10.56028/aetr.12.1.340.2024.

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In the vast universe, Mercury being the closest planet to the sun, has garnered significant attention from scientists due to its unique precession phenomenon. The precession of Mercury is the manifestation of law of Mercury's space motion. Through the study of Mercury's precession, it can promote the understanding of the subtle changes of the Mercury's orbit and position, and also provide reference for the study of other celestial bodies. In this study, the mystery of Mercury's precession will be deeply discussed. First, the basic concept of Mercury's precession and the research progress made

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10

Farooqi, Asifa, Ghufranud Din, Rameesha Hayat, Malik Badshah, Samiullah Khan, and Aamer Ali Shah. "Characterization of Bacillus nealsonii strain KBH10 capable of reducing aqueous mercury in laboratory-scale reactor." Water Science and Technology 83, no. 9 (2021): 2287–95. http://dx.doi.org/10.2166/wst.2021.122.

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Abstract The environmental release of mercury is continuously increasing with high degree of mobility, transformation and amplified toxicity. Improving remediation strategies is becoming increasingly important to achieve more stringent environmental safety standards. This study develops a laboratory-scale reactor for bioremediation of aqueous mercury using a biofilm-producing bacterial strain, KBH10, isolated from mercury-polluted soil. The strain was found resistant to 80 mg/L of HgCl2 and identified as Bacillus nealsonii via 16S rRNA gene sequence analysis. The strain KBH10 was characterized

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11

Kanhiya, Mahour. "Mercury retention after Panax ginseng treatment against mercuric chloride intoxication in hepato-haemato indices in albino rats." World Journal of Biology Pharmacy and Health Sciences 13, no. 2 (2023): 345–49. https://doi.org/10.5281/zenodo.8027073.

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Mercuric chloride was introduced per Os in albino rats (<em>Rattus norvegicus</em>) as per the LD<sub>50</sub> (9.26 mg/kg b.w.). The assessment of mercuric chloride toxicity was done both after acute (0.926 mg/kg b.w.) and sub-acute (0.033 mg/kg b.w.) per Os treatment, while <em>Panax ginseng</em> was also introduced (10 mg/kg b.w.) per Os in the albino rats separately. Mercuric chloride treatment significantly increases mercury retention in liver and blood serum along with increase in liver weight, while <em>Panax ginseng</em> alone caused significant decrease in liv

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12

Guzzi, Gianpaolo, Paolo D. Pigatto, Francesco Spadari, and Caterina A. M. La Porta. "Effect of thimerosal, methylmercury, and mercuric chloride in Jurkat T Cell Line." Interdisciplinary Toxicology 5, no. 3 (2012): 159–61. http://dx.doi.org/10.2478/v10102-012-0026-1.

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ABSTRACT Mercury is a ubiquitous environmental toxicant that causes a wide range of adverse health effects in humans. Three forms of mercury exist: elemental, inorganic and organic. Each of them has its own profile of toxicity. The aim of the present study was to determine the effect of thimerosal, a topical antiseptic and preservative in vaccines routinely given to children, methyl mercury, and mercuric chloride on cellular viability measured by MTT in Jurkat T cells, a human T leukemia cell line. The treatment of Jurkat T cells with thimerosal caused a significant decrease in cellular viabil

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13

Chalker, Justin M., Maximilian Mann, Max J. H. Worthington, and Louisa J. Esdaile. "Polymers Made by Inverse Vulcanization for Use as Mercury Sorbents." Organic Materials 03, no. 02 (2021): 362–73. http://dx.doi.org/10.1055/a-1502-2611.

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Inverse vulcanization is a process in which highly abundant and low-cost elemental sulfur is copolymerized with an unsaturated organic molecule such as a polyene. This process has provided a variety of useful materials with high sulfur content—typically 50% or greater in sulfur by mass. These materials have garnered increasing interest in research as sorbents for mercury, due to the high affinity of sulfur for mercury. In this review, the features of mercury sorbents made by inverse vulcanization are presented. Additionally, case studies are provided to illustrate the variety of polymer archit

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14

Ullah, Hashmat, and Muhammad Farid Khan. "BLOOD." Professional Medical Journal 22, no. 03 (2015): 365–69. http://dx.doi.org/10.29309/tpmj/2015.22.03.1358.

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All forms of mercury are global pollutants having no environmental limits.Human exposure to mercury occurs basically through food chain due to accumulation oforganic forms of mercury in fish. Objectives: The purpose of the present study was to analyzethe effect of phenyl mercuric acetate on plasma and cytosolic fraction GSH. Study Design:Experimental Study. Setting: Department of Pharmaceutical Chemistry, Faculty of Pharmacy,Gomal University, Dera Ismail Khan. Period: 29 January 2011 to 11 march 2012 .StatisticalAnalysis: One-way ANOVA followed by Dunnet’s HSD test. Results: For the estimation

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15

Scora, Jennifer, Diana Valencia, Alessandro Morbidelli, and Seth Jacobson. "Forming Mercury from Excited Initial Conditions." Astrophysical Journal 967, no. 1 (2024): 1. http://dx.doi.org/10.3847/1538-4357/ad39e6.

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Abstract Mercury is notoriously difficult to form in Solar System simulations, due to its small mass and iron-rich composition. Smooth particle hydrodynamics simulations of collisions have found that a Mercury-like body could be formed by one or multiple giant impacts, but due to the chaotic nature of collisions, it is difficult to create a scenario where such impacts will take place. Recent work has found more success forming Mercury analogues by adding additional embryos near Mercury’s orbit. In this work, we aim to form Mercury by simulating the formation of the Solar System in the presence

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16

Hight, Susan C. "Rapid Determination of Methyl Mercury in Fish and Shellfish: Collaborative Study." Journal of AOAC INTERNATIONAL 70, no. 4 (1987): 667–72. http://dx.doi.org/10.1093/jaoac/70.4.667.

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Abstract A modification of the official AOAC method for determining methyl mercury in fish and shellfish was studied in 8 laboratories. Methyl mercury is isolated from homogenized, acetone-washed tissue by adding HC1 and extracting into toluene the methyl mercuric chloride produced. The extract is analyzed for methyl mercuric chloride by electron capture gas chromatography. Collaborators determined methyl mercury in blind duplicate homogenates at 2 levels in tuna and at 1 level in swordfish and oysters. Collaborators also analyzed single homogenates of swordfish and oysters containing methyl m

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17

Wigfield, Donald C., and Sherry L. Perkins. "Oxidation of elemental mercury by hydroperoxides in aqueous solution." Canadian Journal of Chemistry 63, no. 2 (1985): 275–77. http://dx.doi.org/10.1139/v85-045.

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The recent development of techniques in this and other laboratories has allowed the exploration of elemental mercury oxidations by compounds bearing the —O—O—H moiety. The peracid group appears to be a far more effective oxidant of mercury than the peroxide group, and both peracetic acid and m-chloroperbenzoic acid oxidize mercury at the trace level to both mercurous and mercuric forms.

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18

McGoun, Elton G. "Crazy 'Bout a Mercury." Review of International American Studies 14, no. 2 (2021): 57–74. http://dx.doi.org/10.31261/rias.11654.

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When we purchase an automobile, we are also acquiring an amorphous but very real image, that is, the statement which the automobile makes about its owner to the public. Such images are forged in popular culture, and Mercury is an automobile brand that had an auspicious post-WWII popular culture debut. In 1948, K.C. Douglas recorded “Mercury Boogie” on a 10-inch 78-RPM, with its memorable line in the chorus “I’m crazy ‘bout a Mercury.” Five years later in 1953, George and Sam Barris transformed a 1951 Mercury Club Coupe into the Hirohata Merc, creating a classic of customization that has been d

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Popel, S. I., A. P. Golub', and L. M. Zelenyi. "Dusty plasmas above the sunlit surface of Mercury." Physics of Plasmas 30, no. 4 (2023): 043701. http://dx.doi.org/10.1063/5.0142936.

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Above the sunlit surface of Mercury, the properties and formation of dusty plasmas are investigated. It is demonstrated that the dusty plasmas are formed for subsolar angles exceeding approximately 76° due to photoelectric and electrostatic processes. As a result, the dusty plasmas are present in the polar regions of Mercury, characterized by latitudes of about 70° and above. The formation of dusty plasmas is also possible for lower latitudes, but only where the surface profile allows it. Plasmas above the sunlit surface of Mercury consist, in particular, of photoelectrons, electrons, and ions

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20

Toet, A. E., A. van Dijk, T. J. F. Savelkoul, and J. Meulenbelt. "Mercury Kinetics in a Case of Severe Mercuric Chloride Poisoning Treated with Dimercapto-1-propane Sulphonate (DMPS)." Human & Experimental Toxicology 13, no. 1 (1994): 11–16. http://dx.doi.org/10.1177/096032719401300103.

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1 A case of severe mercuric chloride poisoning with clinical signs of mucosal damage of the gastrointestinal tract and anuric renal failure, is presented. The initial whole blood mercury concentration was 14,300 ?g 1-1. This concentration is supposed to be associated with fatal outcome due to multiple organ failure. 2 Because of anuric renal failure, haemodialysis was necessary. Kidney function returned to normal within 10 days. Haemodialysis proved to be ineffective with regard to total mercury elimination. 3 Treatment with DMPS was started because of very severe poisoning, anuric renal failu

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SINGH, NEETU. "Alterations in Acid Phosphatase Activity Following Mercuric Chloride Toxicity in Albino Rats." WORLD JOURNAL OF APPLIED SCIENCE AND RESEARCH 10-11, no. 01-02 (2021): 59. https://doi.org/10.59467/wjasr.2020-21.10-11.59.

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Metals are prevalent in our environment and pose a significant risk to human health, particularly due to their ability to accumulate in the body. We are continuously exposed to toxic heavy metals such as lead (Pb), cadmium (Cd), and mercury (Hg) through food, water, and air, respectively. Additional sources of contamination include leaching from metallic cookware and utensils, as well as personal habits such as smoking and alcohol consumption, which amplify the risk of exposure. Mercury, a silver-white metal, exists in various physical and chemical forms, making it a crucial industrial materia

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SINGH, NEETU. "Alterations in Acid Phosphatase Activity Following Mercuric Chloride Toxicity in Albino Rats." WORLD JOURNAL OF APPLIED SCIENCE AND RESEARCH 10-11, no. 01-02 (2021): 59. https://doi.org/10.59467/wjasr.2021.10-11.59.

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Metals are prevalent in our environment and pose a significant risk to human health, particularly due to their ability to accumulate in the body. We are continuously exposed to toxic heavy metals such as lead (Pb), cadmium (Cd), and mercury (Hg) through food, water, and air, respectively. Additional sources of contamination include leaching from metallic cookware and utensils, as well as personal habits such as smoking and alcohol consumption, which amplify the risk of exposure. Mercury, a silver-white metal, exists in various physical and chemical forms, making it a crucial industrial materia

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Ernst, Carolyn M., Nancy L. Chabot, Rachel L. Klima, et al. "Science Goals and Mission Concept for a Landed Investigation of Mercury." Planetary Science Journal 3, no. 3 (2022): 68. http://dx.doi.org/10.3847/psj/ac1c0f.

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Abstract Mercury holds valuable clues to the distribution of elements at the birth of the solar system and how planets form and evolve in close proximity to their host stars. This Mercury Lander mission concept returns in situ measurements that address fundamental science questions raised by the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission’s pioneering exploration of Mercury. Such measurements are needed to understand Mercury's unique mineralogy and geochemistry, characterize the proportionally massive core's structure, measure the planet's active and ancie

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Dixit, Vidula, Elisabetta Bini, Melissa Drozda, and Paul Blum. "Mercury Inactivates Transcription and the Generalized Transcription Factor TFB in the Archaeon Sulfolobus solfataricus." Antimicrobial Agents and Chemotherapy 48, no. 6 (2004): 1993–99. http://dx.doi.org/10.1128/aac.48.6.1993-1999.2004.

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ABSTRACT Mercury has a long history as an antimicrobial agent effective against eukaryotic and prokaryotic organisms. Despite its prolonged use, the basis for mercury toxicity in prokaryotes is not well understood. Archaea, like bacteria, are prokaryotes but they use a simplified version of the eukaryotic transcription apparatus. This study examined the mechanism of mercury toxicity to the archaeal prokaryote Sulfolobus solfataricus. In vivo challenge with mercuric chloride instantaneously blocked cell division, eliciting a cytostatic response at submicromolar concentrations and a cytocidal re

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Belfarhi, Leila, Ibtissem Chouba, Naziha Amri, Nadia Boukris, and Abdelkrim Tahraoui. "Histological and Hormonal Study of the Protective Effect of the Calotropis Procera Against the Toxicity of Mercury Chloride." Natural Systems and Resources, no. 2 (October 2020): 5–14. http://dx.doi.org/10.15688/nsr.jvolsu.2020.2.1.

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We undertook this study with the aim of investigating the detoxification of an extreme toxic metal mercury chloride by the Calotropis procera plant taken from the Algerian Sahara. We studied the protective effects of the plant Calotropis procera against renal toxicity and Mercury chloride-induced hepatic. Ten male and female albino rats Wistar were divided into four equal groups. Group (I) served as a healthy control group, group (II) were intra-peritoneal administered with 10 ml of Calotropis procera, group (III) were intra-peritoneal administrated with both 10 ml of the plant Calotropis proc

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Zalups, R. K., and D. W. Barfuss. "Participation of mercuric conjugates of cysteine, homocysteine, and N-acetylcysteine in mechanisms involved in the renal tubular uptake of inorganic mercury." Journal of the American Society of Nephrology 9, no. 4 (1998): 551–61. http://dx.doi.org/10.1681/asn.v94551.

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Mechanisms involved in the renal uptake of inorganic mercury were studied in rats administered a nontoxic 0.5 mumol/kg intravenous dose of inorganic mercury with or without 2.0 mumol/kg cysteine, homocysteine, or N-acetylcysteine. The renal disposition of mercury was studied 1 h after treatment in normal rats and rats that had undergone bilateral ureteral ligation. In addition, the disposition of mercury (including the urinary and fecal excretion of mercury) was evaluated 24 h after treatment. In normal rats, coadministering inorganic mercury plus cysteine or homocysteine caused a significant

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Omanwar, S., B. Saidullah, K. Ravi, and M. Fahim. "Vasorelaxant effects of mercury on rat thoracic aorta." Human & Experimental Toxicology 33, no. 9 (2013): 904–10. http://dx.doi.org/10.1177/0960327113512341.

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Mercury, a heavy metal, is widespread and persistent in the environment and has been elucidated as a possible risk factor in cardiovascular diseases. Mercury has been reported to selectively impair the nitric oxide (NO) pathway in the vascular endothelium as a consequence of oxidative stress. Conversely, mercury per se causes endothelium-dependent vasorelaxation at lower concentration via the NO pathway. Little is known about the effects of mercury per se on other endothelial mediators. To elucidate possible mechanisms involved in this action, isometric tension was measured in aortic rings pre

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Brown, N. L., Y. C. Shih, C. Leang, K. J. Glendinning, J. L. Hobman, and J. R. Wilson. "Mercury transport and resistance." Biochemical Society Transactions 30, no. 4 (2002): 715–18. http://dx.doi.org/10.1042/bst0300715.

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Resistance to mercuric ions in bacteria is conferred by mercuric reductase, which reduces Hg(II) to Hg(0) in the cytoplasmic compartment. Specific mercuric ion transport systems exist to take up Hg(II) salts and deliver them to the active site of the reductase. This short review discusses the role of transport proteins in resistance and the mechanism of transfer of Hg(II) between the mercury-resistance proteins.

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Mani, Dr Vijay, Arun Kumarasarangan Gurusamy, and Vimala Perumal. "Toxicological effects of Mercury in Radish (Raphanus Sativus) plants – Biochemical Analysis." Scholars Academic Journal of Pharmacy 14, no. 01 (2025): 1–8. https://doi.org/10.36347/sajp.2025.v14i01.001.

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Mercury is one of the major toxic heavy metal, poses significant risks to both the environment and human health due to its persistence and its capability to accumulate within ecosystems. The primary route of mercury exposure is through contaminated soil, water and food sources, which can lead to substantial damage to living organisms. In particular, mercury exposure adversely affecting the kidneys, nervous system and other important organs. This study investigates the toxicological effects of Mercury in Radish (Raphanus Sativus) plants through biochemical analysis. The experimental plants were

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Desak, Gde Diah Dharma Santhi. "THE DETRIMENTAL EFFECTS OF MERCURY EXPOSURE ON HUMAN HEALTH." DETRIMENTAL EFFECTS OF MERCURY EXPOSURE ON HUMAN HEALTH 12, no. 1 (2024): 107–13. https://doi.org/10.5281/zenodo.13626301.

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<strong>Abstract:</strong> Mercury is one of the widespread toxic metal detrimental effects on human health. Humans can be exposed to mercury in the workplace, consume large amounts of aquatic product, products containing mercury such as traditional remedies, cosmetics, including skin lightening creams. The aim of this review is to explore the natures and type of mercury, routes of exposure and sources of mercury, toxicity mechanisms of mercury exposure, and the clinical signs of acute and chronic exposure of mercury. The writing methodology used is a literature review. The literature source c

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Spyropoulou, Alexandra, Chrysi Laspidou, Kostantinos Kormas, and Yannis G. Lazarou. "The Impact of Possible Mercury Source-Point Contamination in the Coastal Area of Skiathos Island." Environmental Sciences Proceedings 2, no. 1 (2020): 50. http://dx.doi.org/10.3390/environsciproc2020002050.

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In Skiathos Island the water is not potable due to mercury contamination and salinization. The mercury’s origin is natural due to the existence of cinnabar in the Skiathos aquifer as a mineral in the Earth’s crust. The possibility of mercury contaminants ending up in the coastal area was investigated through a field experiment. Mussels (Mytilus galloprovincialis) were employed as mercury monitoring biomarkers at the outflow of the wastewater treatment of the island. Using the RNA:DNA ratio, it was revealed that the organisms were stressed after three months of exposure to Skiathos’ coastal wat

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Deacon, GB, and GN Stretton. "Organomercury Compounds. XXVII. The Synthesis and Properties of Some Carboxylato- and Carboxy-pyridinylmercurials." Australian Journal of Chemistry 38, no. 3 (1985): 419. http://dx.doi.org/10.1071/ch9850419.

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Decarboxylation of mercuric pyridine-2,3-dicarboxylate in hot dimethyl sulfoxide or hexamethylphosphoramide gives a mixture of 2-carboxylatopyridin-3-ylmercury(II) (major product) and 3- carboxylatopyridin-2-ylmercury(II) (minor product). The mixture reacts ( i ) with acidified halide ions ( Cl - or I-) to yield a mixture of the corresponding carboxypyridinyl ( halogeno )mercury(II) derivatives, (ii) with tribromide ions to give the bromo ( carboxypyridinyl )mercury(ii) complexes, 3-bromopyridine-2-carboxylic acid, and 2-bromopyridine-3- carboxylic acid, and (iii) with iodide ions in hot aqueo

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Awitor, Komla Oscar, Laurent Bernard, Olivier Bonnin, Bernard Coupat, Jean Paul Fournier, and Philippe Verdier. "Article." Canadian Journal of Chemistry 77, no. 2 (1999): 243–48. http://dx.doi.org/10.1139/v98-237.

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Mercurous chloride (Hg2Cl2), or calomel, was prepared by direct synthesis from commercial mercury and mercuric chloride. The mercuric chloride mass fraction in the synthesized material is particularly small. The mercurous chloride vapor pressure was measured between 353 and 453 K by the Knudsen cell method. In order to obtain the mercurous chloride vapor pressure, we took into account the dissociation in the vapor phase into mercury and mercuric chloride. Our results are compared with those in the literature.Key words: mercurous chloride, calomel, vapor pressure, mass spectrometry, Knudsen cel

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Heath, Julie A., and Peter C. Frederick. "Relationships Among Mercury Concentrations, Hormones, and Nesting Effort of White Ibises (Eudocimus Albus) in the Florida Everglades." Auk 122, no. 1 (2005): 255–67. http://dx.doi.org/10.1093/auk/122.1.255.

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Abstract Mercury, a common wetland pollutant, can affect wildlife populations through acute toxicity or through physiological effects that modify behavior and negatively influence reproductive success. We compared body-feather mercury concentrations of free-living male and female adult White Ibises (Eudocimus albus) during three breeding seasons in the Florida Everglades and examined the relationships among mercury, hormone concentrations, and body-condition scores. Female White Ibises consistently had lower mercury concentrations than males. Prebreeding females' estradiol concentrations were

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35

Sieler, Roman. "Mercurial Medicines." Asian Medicine 17, no. 1 (2022): 148–85. http://dx.doi.org/10.1163/15734218-12341510.

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Abstract Using ethnographic data, this article suggests that the therapeutic use of various mercury compounds in siddha medicine has so far not decreased despite international regulation of the substance and discussions surrounding the safety of mercury. Siddha practitioners portray mercury as central to their therapeutics. The article demonstrates this for different contexts, including the preparation of mercuric medicines; the production of mercury amulets; and recent research studies on mercury-based siddha drugs, targeting, for instance, dementia-related syndromes. Contextualizing siddha m

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36

Quintero-Castañeda, Cristian Yoel, Luis Roberto Hernández-Angulo, Daniel Tobón-Vélez, Anamaría Franco-Leyva, and María Margarita Sierra-Carrillo. "Assessing Mercury Contamination Levels in the Sediments of Two Pyrenean Lakes." Diversity 16, no. 10 (2024): 627. http://dx.doi.org/10.3390/d16100627.

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Mercury, a trace metal, is a persistent environmental pollutant that can be detected even in remote regions, including high-mountain lakes. This study examined mercury concentrations in the sediment of two lakes in the French Pyrenees, the Legunabens and Labant lakes. Sediment samples were collected using a Hon-Kajak Sediment Corer, and mercury concentrations were measured following the EPA 7473 method with a direct mercury analyzer (DMA-80). Mercury levels reached up to 283 ng g−1 in the Legunabens lake and up to 110 ng g−1 in the Labant lake, possibly linked to the mining history of the Ariè

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Handy, R. D. "Comparison of intermittent and continuous exposure to mercuric chloride in rainbow trout (Oncothynchus mykiss), goldfish (Carassius auratus), and the fathead minnow (Pimephales ptomelas)." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 1 (1995): 13–22. http://dx.doi.org/10.1139/f95-002.

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Rainbow trout (Oncorhynchus mykiss), goldfish (Carassius auratus), and the fathead minnow (Pimephales promelas) were exposed continuously or intermittently (24-h exposure: 24-h recovery) to a nominal peak concentration of 3 μg∙L−1 mercuric chloride for 120 h. There were no differences in the target organs or the distribution of the toxicant within internal organs between the two exposure regimes. Mercury concentrations in the tissues of intermittently exposed fish were less than those of continuously exposed fish. The lower mercury concentrations in the intermittently exposed groups arose from

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38

Nigro, Marco. "Mercury and selenium localization in macrophages of the striped dolphin, Stenella coeruleoalba." Journal of the Marine Biological Association of the United Kingdom 74, no. 4 (1994): 975–78. http://dx.doi.org/10.1017/s0025315400090226.

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The cellular features of mercury and selenium accumulation has been studied by transmission electron microscopy and x-ray microprobe analysis in the liver of striped dolphins. Mercury and selenium occurred as dense intracellular granules, located mainly within the liver macrophages (Kupffer cells). Granules were composed of 150 A spherical particles showing the same electron diffraction pattern and x-ray spectrum as mercuric selenide. The role of macrophages in mercuric selenide granule production and storage is discussed.

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Murray, Kim M., and Jennifer C. Hedgepeth. "Intravenous Self-Administration of Elemental Mercury: Efficacy of Dimercaprol Therapy." Drug Intelligence & Clinical Pharmacy 22, no. 12 (1988): 972–75. http://dx.doi.org/10.1177/106002808802201208.

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Deliberate parenteral self-injection of mercury is extremely rare, and is associated with a high degree of mortality and morbidity. Because mercury depresses cellular enzymatic mechanisms by combining with sulfhydryl groups, soluble mercuric salts are toxic to all cells. Embolization of mercury in the lungs has been reported with varying degrees of changes in pulmonary function. Mercury causes urticaria progressing to weeping dermatitis, leukopenia, anemia, diarrhea, salivation, liver damage, and renal damage progressing to acute renal failure with anuria. Dimercaprol is an effective antidote

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Guzmán-Uria, Fabiola, Isabel Morales-Belpaire, Dario Achá, and Marc Pouilly. "Particulate Mercury and Particulate Organic Matter in the Itenez Basin (Bolivia)." Applied Sciences 10, no. 23 (2020): 8407. http://dx.doi.org/10.3390/app10238407.

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In rivers and other freshwater bodies, the presence of mercury can be due to direct contamination by anthropic activities such as gold mining. However, it can also be attributed to atmospheric deposition and erosion, runoff, or lixiviation from surrounding soils. In the case of the Amazon rainforest, high mercury contents have been reported for litter and topsoil, which could affect the mercury concentrations in water bodies. Samples of suspended particulate matter were obtained from a transect of the Itenez River, associated lakes, and some of its tributaries. The aim was to obtain informatio

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41

Kotdawala, R. R., Nikolaos Kazantzis, and Robert W. Thompson. "Molecular simulation studies on the adsorption of mercuric chloride." Environmental Chemistry 4, no. 1 (2007): 55. http://dx.doi.org/10.1071/en06034.

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Environmental context. The Clean Air Act amendments of 1990 identified mercury and associated compounds as hazardous air pollutants of particular concern to human health and the environment. Coal-fired power plants and municipal solid waste incinerators are significant sources of mercury-containing emissions. Adsorption represents a common technique used to alleviate mercury contamination. The present study uses molecular simulations to study the correlation between key surface characteristics of the adsorbent and its mercury capturing ability with a view to the selection and design of novel a

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Schelert, James, Vidula Dixit, Viet Hoang, Jessica Simbahan, Melissa Drozda, and Paul Blum. "Occurrence and Characterization of Mercury Resistance in the Hyperthermophilic Archaeon Sulfolobus solfataricus by Use of Gene Disruption." Journal of Bacteriology 186, no. 2 (2004): 427–37. http://dx.doi.org/10.1128/jb.186.2.427-437.2004.

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ABSTRACT Mercury resistance mediated by mercuric reductase (MerA) is widespread among bacteria and operates under the control of MerR. MerR represents a unique class of transcription factors that exert both positive and negative regulation on gene expression. Archaea and bacteria are prokaryotes, yet little is known about the biological role of mercury in archaea or whether a resistance mechanism occurs in these organisms. The archaeon Sulfolobus solfataricus was sensitive to mercuric chloride, and low-level adaptive resistance could be induced by metal preconditioning. Protein phylogenetic an

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43

Jindal, Mitali, Gobind Rai Garg, Pramod Kumari Mediratta, and Mohammad Fahim. "Protective role of melatonin in myocardial oxidative damage induced by mercury in murine model." Human & Experimental Toxicology 30, no. 10 (2010): 1489–500. http://dx.doi.org/10.1177/0960327110391685.

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This study was designed to investigate the electrophysiological, hemodynamic and biochemical parameters of mercuric chloride and methylmercury exposure on cardiovascular functions and its modulation by melatonin in vivo. Wistar albino rats were divided into six group containing 10 animals each. Mercuric chloride (3.75 µM/L) in drinking water and methylmercury (0.5 mg/kg/day) through gavage, given for 1 month, induced a statistically significant increase ( p < 0.001) in left ventricular end diastolic pressure, blood and cardiac tissue mercury content and myocardial lipid peroxides compared t

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Ogunseitan, O. A. "Protein Method for Investigating Mercuric Reductase Gene Expression in Aquatic Environments." Applied and Environmental Microbiology 64, no. 2 (1998): 695–702. http://dx.doi.org/10.1128/aem.64.2.695-702.1998.

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A colorimetric assay for NADPH-dependent, mercuric ion-specific oxidoreductase activity was developed to facilitate the investigation of mercuric reductase gene expression in polluted aquatic ecosystems. Protein molecules extracted directly from unseeded freshwater and samples seeded with Pseudomonas aeruginosa PU21(Rip64) were quantitatively assayed for mercuric reductase activity in microtiter plates by stoichiometric coupling of mercuric ion reduction to a colorimetric redox chain through NADPH oxidation. Residual NADPH was determined by titration with phenazine methosulfate-catalyzed reduc

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45

Tauson, V. L., V. S. Zubkov, and V. I. Men’shikov. "FORMS OF MERCURY OCCURRENCE IN THE MINERALS OF MERCURY ORE FORMATION." Russian Geology and Geophysics 35, no. 1 (1994): 44–57. https://doi.org/10.2113/rgg.1994.35.1.44.

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Minerals belonging to mercury ore formation and their synthetic analogues with definite mercury forms are studied using a combined technique of thermal and atomic absorption analyses. As exemplified by the Aktash deposit (Gorny Altai), the sorbed (mainly, physisorbed) and sulfide (superfine inclusions of HgS minerals) forms are the most important forms of mercury occurrence. The data obtained suggest that the mercury forms were redistributed during the geological time of the deposit history. It resulted in significant enrichment of the main ore minerals by sorbed mercury. The distribution of t

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Riani, Etty. "KONTAMINASI MERKURI (Hg) DALAM ORGAN TUBUH IKAN PETEK (Leiognathus equulus) DI PERAIRAN ANCOL, TELUK JAKARTA." Jurnal Teknologi Lingkungan 11, no. 2 (2016): 313. http://dx.doi.org/10.29122/jtl.v11i2.1216.

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Mercury (Hg) which is contained in aquatic ecosystem can enter and be accumulated to organism’s body, like on petek fish (Leiognathus equulus). The research aimed to see mercury concentration in aquatic ecosystem, to see mercury concentration in organ of petek fish by AAS (Atomic Absorption Spectrophotometer) and its histopathology response in organs of petek fish. The research was done at Ancol, Jakarta Bay on October-December 2004. There are 16 samples of water and fish from 3 stations.The analysis result of water quality is compared by standard quality of sea water for sea organism life (Ke

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Lombardi, Guido, Antonio Lanzirotti, Clifford Qualls, Francisco Socola, Abdul-Mehdi Ali, and Otto Appenzeller. "Five Hundred Years of Mercury Exposure and Adaptation." Journal of Biomedicine and Biotechnology 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/472858.

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Mercury is added to the biosphere by anthropogenic activities raising the question of whether changes in the human chromatin, induced by mercury, in a parental generation could allow adaptation of their descendants to mercury. We review the history of Andean mining since pre-Hispanic times in Huancavelica, Peru. Despite the persistent degradation of the biosphere today, no overt signs of mercury toxicity could be discerned in present day inhabitants. However, mercury is especially toxic to the autonomic nervous system (ANS). We, therefore, tested ANS function and biologic rhythms, under the co

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48

Blanuša, Maja, Tatjana Orct, Maja Vihnanek Lazarus, Ankica Sekovanić, and Martina Piasek. "Mercury Disposition in Suckling Rats: Comparative Assessment Following Parenteral Exposure to Thiomersal and Mercuric Chloride." Journal of Biomedicine and Biotechnology 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/256965.

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Due to the facts that thiomersal-containing vaccine is still in use in many developing countries, and all forms of mercury have recognised neurotoxic, nephrotoxic, and other toxic effects, studies on disposition of ethylmercury and other mercury forms are still justified, especially at young age. Our investigation aimed at comparing mercury distribution and rate of excretion in the early period of life following exposure to either thiomersal (TM) or mercuric chloride (HgCl2) in suckling rats. Three experimental groups were studied: control, TM, and HgCl2, with 12 to18 pups in each. Both forms

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Bretaña, Bryan Lloyd P., Sheimarie G. Salcedo, Lothy F. Casim, and Rhodora S. Manceras. "Growth performance and inorganic mercury uptake of Vetiver (Chrysopogon zizanoides Nash) inoculated with arbuscular mycorrhiza fungi (AMF): its implication to phytoremediation." Growth performance and inorganic mercury uptake of Vetiver (Chrysopogon zizanoides Nash) inoculated with arbuscular mycorrhiza fungi (AMF): its implication to phytoremediation 1, no. 1 (2019): 39–47. https://doi.org/10.5281/zenodo.8245234.

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The study was conducted to assess the growth performance and inorganic mercury uptake of vetiver grass (<em>Chrysopogon zizanoides</em> Nash) inoculated with arbuscular mycorrhizal fungi (AMF). Important growth parameters such as number of leaves, plant height, fresh weight and dry weight as well as mercury uptake were determined for one month duration. The experimental plants were applied with varying concentrations (0 ppm, 2 ppm, 4 ppm and 6 ppm) of mercuric chloride (HgCl<sub>2</sub>). Different HgCl<sub>2</sub> treatments showed no significant difference in terms of number of leaves,

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Kanan, Sofian M., Imad A. Abu-Yousef, Nora Hassouneh, Ahmed Malkawi, Naser Abdo, and Marsha C. Kanan. "A Highly Selective Luminescent Sensor for Detecting Mercuric Ions in Water." Australian Journal of Chemistry 62, no. 12 (2009): 1593. http://dx.doi.org/10.1071/ch09048.

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A chemoluminescent sensor utilizing the substrate 2,6-pyridinedicarboxaldehydebis(o-hydroxyphenylimine) (S1) was developed for low-concentration detection of mercuric ions in aqueous solutions. The sensor selectively detects mercury in the presence of sodium, calcium, magnesium, and iron ions. A strong binding was observed between the mercuric ions and the substrate at a pH range of 6.5–7.5, which makes the substrate a distinctive luminescence sensor for detecting mercury at ambient conditions. The sensor shows a linear response towards Hg2+ in the concentration range 5.0 × 10–5 to 2.5 × 10–8

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