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Journal articles on the topic 'HN03'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Treviño-Cueto, Diego Alejandro, Melchor Cepeda-Siller, Francisco Daniel Hernández-Castillo, and Sergio René Sánchez-Peña. "Hongos nematófagos del género Arthrobotrys spp., en el control de Meloidogyne incognita bajo condiciones in vitro." Revista Agraria 14, no. 1 (2017): 01–05. http://dx.doi.org/10.59741/agraria.v14i1.529.

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El nematodo agallador Meloidogyne incognita está reportado como el principal nematodo que causa daños severos en la agricultura alrededor del mundo. Los hongos nematófagos del género Arthrobotrys spp. son enemigos naturales de los nematodos, a los que pueden inmovilizar y digerir. Con la finalidad de disminuir el uso de nematicidas químicos, se pretende generar nuevas tecnologías a partir del uso de agentes para el control biológico de Meloidogyne incognita, como los hongos nematófagos del género Arthrobotrys spp. El objetivo del presente trabajo fue identificar especies del hongo del género A

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2

Nguyen, Duc Huy, My Tieu Ngoc Le, Hoang Loc Nguyen, et al. "Isolation of Weissella cibaria from Pacific White Shrimp (Litopenaeus vannamei) Gastrointestinal Tract and Evaluation of Its Pathogenic Bacterial Inhibition." Indian Journal of Science and Technology 13, no. 10 (2020): 1200–1212. https://doi.org/10.17485/ijst/2020/v13i10/149934.

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Abstract <strong>Objective:</strong> The present study reported the isolation of lactic acid bacteria from the shrimp gastrointestinal tract and evaluation of its antagonistic activity against pathogenic bacteria. <strong>Methods/ statistical analysis:</strong> Lactic bacteria from the gastrointestinal tract of alive healthy shrimp were screened on sterilized MRS medium. Vibrio sp. inhibition by isolates was conducted by the agar-well diffusion assay. The isolates were identified by 16S rRNA sequencing. Antibacterial activity was investigated against 25 Vibrio sp. isolates, Staphyloc

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3

Rastuti, Undri, Jumina Jumina, and Sabirin Matsjeh. "SINTESIS 6-NITRO VERATRALDEHID (3,4-DIMETOKSI-6-NITRO BENZALDEHID) DARI VANILIN DENGAN HNO3 DAN CAMPURAN HNO3-H2SO4." Molekul 4, no. 2 (2009): 62. http://dx.doi.org/10.20884/1.jm.2009.4.2.64.

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The synthesis of 6-nitro veratraldehyde from vanillin was used HNO3 and a mixture of HNO3 and H2SO4. The reaction steps were (I) methylation of vanillin and (2) nitration of the methylation product. Methylation of vanillin was conducted using dimetnylsulfate and NaOH at 60 0C for 2 hours. Nitration of the methylation product was performed in two methods, which using HN03 and using a mixture of HN03 and H2SO4 both at 5 0C for 2 hours. The products were analyzed by means of TLC, GC; IR, 1H-NMR and GC-MS spectrometers.The methylation of vanillin gave 87.7 % yield of veratraldehyde which was found

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Sanchez, Francisco Garcia, A. Navas Diaz, and J. Medinilla. "Mineralization Procedure for Determination of Copper in Aerosols Using Photometric Method Based on Copper-BPKQH Complex." Journal of AOAC INTERNATIONAL 73, no. 5 (1990): 764–70. http://dx.doi.org/10.1093/jaoac/73.5.764.

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Abstract A mineralization procedure Is proposed for copper aerosols In which samples are mineralized by wet-ashing with HN03 + HCIO4 mixture. Copper content Is determined by a photometric method based on formation of a complex between copper and benzyl 2-pyrldyl ketone 2-qulnolylhydrazone (BPKQH). The Influence of pH, ethanol content, and reagent concentration Is studied. Copper determination at pH = 7.3, In the range 0.05 to 3 ppm is proposed. Mineralization with HNO3 Is carried out In different conditions of evaporation (with or without dryness) and manipulation. Analysis of variance by the

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5

Sahida, Sahida, Baharuddin Hamzah, and Siti Nuryanti. "Emulsion Stability Tes and Effect of HNO3 Concentration in the Internal Phase on Cadmium Ion Extraction using Liquid Membrane Emulsion Technique." Jurnal Akademika Kimia 9, no. 1 (2020): 34–39. http://dx.doi.org/10.22487/j24775185.2020.v9.i1.pp34-39.

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Study on the emulsion stability and cadmium ion extraction tests was performed using the liquid membrane emulsion technique. This study aimed to determine the emulsion stability between the membrane phase and the internal phase with the variation of the ratio (2:1, 1:1, 2:3, and 1:2), and to determine the maximum conditions of cadmium ion extraction in a solution including the various concentration of HNO3 solution 1, 1.5, 2, and 2.5 M. This study is a laboratory experimental method using benzoyl acetone compound as cation carrier, kerosene as membrane phase, HNO3 solution as the internal phas

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6

Puchyr, Richard F., and Rubin Shapiro. "Determination of Trace Elements in Foods by HCl-HNO3 Leaching and Flame Atomic Absorption Spectroscopy." Journal of AOAC INTERNATIONAL 69, no. 5 (1986): 868–70. http://dx.doi.org/10.1093/jaoac/69.5.868.

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Abstract Aluminum, iron, tin, zinc, calcium, magnesium, nickel, copper, chromium, cadmium, and potassium in foods can be extracted by HC1- HN03 leaching and determined quantitatively using flame atomic absorption spectroscopy (AAS), with recoveries ranging from 90 to 110%. Thirty to 40 samples of almost any type of food sample can be analyzed routinely for 2 elements in 4-5 h. In contrast, one or 2 days are required when a wet-ash or dry-ash technique is used. Extraction consists of weighing 2-10 g samples into 125 mL Erlenmeyer flasks, adding 20 mL concentrated HCI-HNO3 (9 + 1), then heating

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7

Saito, Isao, Harumi Oshima, Norihisa Kawamura, and Masuo Yamada. "Screening Method for Determination of High Levels of Cadmium, Lead, and Copper in Foods by Polarized Zeeman Atomic Absorption Spectrometry Using Discrete Nebulization Technique." Journal of AOAC INTERNATIONAL 71, no. 4 (1988): 829–32. http://dx.doi.org/10.1093/jaoac/71.4.829.

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Abstract A screening method for determination of cadmium, lead, and copper in foods was developed. The sample (1-3 g) is digested with HN03- H2S04-HCI04 in a centrifuge tube attached to a straight glass tube that prevents loss of HN03 by volatilization. After digestion, potassium iodide, H2S04, and MIBK (4-methyl 2-pentanone) are added, and the metals are extracted with MIBK as metal iodides. The MIBK solution is injected and the metals are determined by flame polarized Zeeman atomic absorption spectrometry using a discrete nebulization technique. Recoveries of metals from fortified milk powde

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8

Dabeka, Robert W., and Gladys M. A. Lacroix. "Total Arsenic in Foods after Sequential Wet Digestion, Dry Ashing, Coprecipitation with Ammonium Pyrrolidine Dithiocarbamate, and Graphite-Furnace Atomic Absorption Spectrometry." Journal of AOAC INTERNATIONAL 70, no. 5 (1987): 866–70. http://dx.doi.org/10.1093/jaoac/70.5.866.

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Abstract A graphite-furnace atomic absorption (GFAAS) method is described for determining total arsenic (organic and inorganic compounds) in foods. Samples ranging from 1 to 40 g (depending on moisture content) were digested with HN03 and dry-ashed at 500°C overnight after addition of MgO. After dissolution in HC1, the arsenic was reduced with iodide and ascorbic acid and precipitated with ammonium pyrrolidine dithiocarbamate (APDC) in the presence of nickel carrier. Precipitates were collected on 0.3/im cellulose acetate filters and dissolved in 10% HN03 containing modifier. Ba(N03)2 was adde

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9

Keane, H., A. Park, A. Sizeland, and A. Yuen. "HN03 METASTATIC PAROTID SQUAMOUS CELL CARCINOMA: A FACIAL NERVE PRESERVATIVE APPROACH." ANZ Journal of Surgery 77, s1 (2007): A37. http://dx.doi.org/10.1111/j.1445-2197.2007.04121_3.x.

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10

Nabiollahy, K., F. Khormali, K. Bazargan, and SH Ayoubi. "Forms of K as a function of clay mineralogy and soil development." Clay Minerals 41, no. 3 (2006): 739–49. http://dx.doi.org/10.1180/0009855064130216.

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AbstractThe relationships between different pools of K, i.e. exchangeable, HN03-extractable, mineral and total, were investigated as a function of clay mineralogy and soil development in soils of Kharkeh Research Station, Kurdestan Province, western Iran. Samples from different horizons often pedons were selected and analysed for clay mineralogy and K fractionation. X-ray diffraction patterns revealed that clay minerals in the soils studied were similar in type, while their abundances were different. The smectite content was significantly greater in Vertisols than in the other soils. The resul

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11

Musikas, C., and H. Hubert. "THE EXTRACTION BY N,N'-TETRAALKYLMALONAMIDES I. THE HC10" and HN03 EXTRACTION." Solvent Extraction and Ion Exchange 5, no. 1 (1987): 151–74. http://dx.doi.org/10.1080/07366298708918559.

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12

Khan, Abrar Ahmad, and Mustabeen Khan. "OBSERVATION OF SIMULATED ACID RAIN IMPACT ON CHICKPEA PLANT." Ecoprint: An International Journal of Ecology 20 (November 6, 2014): 77–80. http://dx.doi.org/10.3126/eco.v20i0.11468.

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The effect of simulated acid rain (SAR) on plant growth, yield and photosynthetic pigments ofchickpea (Cicer areitinum L.) var.T-3 was studied in glass house condition. Three acidity levels, pH5.0, 4.0 and 3.0 (IN H2S04 and IN HN03) were applied twice in a week on chickpea plants. Symptomslike yellowing, lesions on lamina and marginal necrosis were observed with variations in alltreatments. Plant growth, yield and photosynthetic pigments were reduced in all the treatments beinghighest at pH 3.0. Thus acid rain was found harmful to chickpea crop.DOI: http://dx.doi.org/10.3126/eco.v20i0.11468ECO

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13

A., S. FOUDA, K. MOHAMED A., A. MOSTAFA H., and M. HUSSEIN E. "A Study of Inhibiting Action of some Monosaccharides on Corrosion of Zinc in HN03." Journal of Indian Chemical Society Vol. 66, May 1989 (1989): 307–9. https://doi.org/10.5281/zenodo.5959358.

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Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt <em>Manuscript received 18 April 1988, revised 26 October 1988, accepted 22 February 1989</em> The inhibition of corrosion of zinc in 1.5<em> M</em> nitric acid, by some monosaccharides (glucose, fructose. mannose, galactose) in the concentration range 5 x O<sup>2 </sup>- 3 x10<sup>-1 </sup><em>M</em> has been studied with respect to concentration or inhibitor and period of immersion. In general, the inhibitor efficiency increases with increase In concentration or inhibitor.

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14

Osheim, David L., and Frank P. Ross. "Atomic Absorption Spectrophotometric Determination of Liver Copper: Collaborative Study." Journal of AOAC INTERNATIONAL 68, no. 1 (1985): 44–45. http://dx.doi.org/10.1093/jaoac/68.1.44.

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Abstract Eleven collaborating laboratories conducted replicate analyses on 4 blind duplicate pairs of bovine liver samples that either had naturally acquired copper levels or were spiked with one of 3 copper levels. A National Bureau of Standards Bovine Liver sample (SRM 1577, 193 ± 10 mg copper/kg) and a 1000 mg copper/L standard were also submitted to the collaborators. The method requires the tissue to be digested with concentrated HN03 at 60°C, diluted to volume with water, and analyzed by atomic absorption spectrophotometry. The intralaboratory coefficients of variation (CV„) ranged from

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15

Manik, Lidia, Jalaluddin Jalaluddin, Rozanna Dewi, Syamsul Bahri, and Zulnazri Zulnazri. "Pengaruh Asam Nitrat (HNO3) Sebagai Pelarut Pada Ekstraksi Pektin Dari Labu Siam." Chemical Engineering Journal Storage (CEJS) 2, no. 4 (2022): 59. http://dx.doi.org/10.29103/cejs.v2i4.7700.

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Pektin merupakan salah satu kelompok karbohidrat yang larut dalam air dan terdapat pada dinding sel dan jaringan interseluler tanaman tertentu. Dalam penelitian ini bahan dasar yang digunakan dalam pembuatan pektin adalah labu siam. Proses pembuatan pektin yang digunakan adalah proses ekstraksi, yaitu salah satu proses pembuatan pektin dengan menggunakan pelarut organik. Adapun tujuan dari penelitian ini adalah untuk menghasilkan pektin dari labu siam. Sampel labu siam 100 gr diekstraksi dengan menggunakan pelarut HN03pada pencucian pektin dengan alkohol 96%. Konsentrasi HN03 yang digunakan ad

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16

Wibowo, David, Lanny Setyadhi, and Suryadi Ismadji. "Modification of the surface chemistry of activated carbon and its influence on methylene blue adsorption." Jurnal Teknik Kimia Indonesia 5, no. 1 (2018): 374. http://dx.doi.org/10.5614/jtki.2006.5.1.6.

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The adsorption behavior of activated carbons is determined not only by their porous structures but also by the chemical nature of its surface. The surface chemistry of activated carbons can be selectively modified in order to improve their adsorption capacity. In this study, a NORIT granular activated carbon was treated by oxidant (HNO3) and non-oxidant acid (HCI) at different concentrations and temperatures. The surface chemistries of the materials were characterized by Boehm titration method and by the determination of the point of zero charge (pHPZC).The adsorption properties of the selecte

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17

Salvatore Pannitteri. "Novel Sample Preparation Methods for Transmission Electron Microscopy Observation of Dopant Profiles in Silicon Devices." Microscopy and Microanalysis 5, S2 (1999): 916–17. http://dx.doi.org/10.1017/s1431927600017906.

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I present details of novel sample preparation techniques used for delineating two-dimensional dopant profiles in silicon devices. These techniques are based on selective chemical etch of doped silicon in a mixture of hydrofluoric and nitric acid, or simply in buffered HF. The altered topography of the etched surface is imaged by transmission electron microscopy (TEM). Two different strategies will be presented by focusing on their sensitive, resolution, and field of application.In the first case the silicon device is subjected to the conventional thinning procedure for TEM observations in cros

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18

Karakaş, Duran, and Semra G. Tuncel. "Optimization and field application of a filter pack system for the simultaneous sampling of atmospheric HN03, NH3 AND SO2." Atmospheric Environment 31, no. 11 (1997): 1657–66. http://dx.doi.org/10.1016/s1352-2310(96)00335-4.

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19

Bhargavi, Bhattu, Kaloori Kalpana, and S. Kistamma. "Analysis of minerals under different water stress levels in Andrographis paniculata (Burm.f.) Wall. Ex Nees." Journal of Drug Delivery and Therapeutics 9, no. 3 (2019): 48–50. http://dx.doi.org/10.22270/jddt.v9i3.2757.

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Medicinal plants have diverse use in the society from medicine to cosmetics to herbal foods with vast potential for their curative medicinal properties. Minerals are essential nutrient for plant metabolism and over all growth of the plants. The overall growth of the plant depends upon the availability of the water. The aim of this study was to determine the mineral content under different water stress levels in Andrographis paniculata. The homogenized leaf samples of controlled plants(Daily watered), treated T2 plants(watering 2nd day), T4 plants(watering on every 4th day), T7 plants(watering

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20

Lendinez, Elena, M. Carmen Lopez, Carmen Cabrera, and M. Luisa Lorenzo. "Determination of Chromium in Wine and Other Alcoholic Beverages Consumed in Spain by Electrothermal Atomic Absorption Spectrometry." Journal of AOAC INTERNATIONAL 81, no. 5 (1998): 1043–47. http://dx.doi.org/10.1093/jaoac/81.5.1043.

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Abstract A reliable and rapid method is described for the determination of chromium in alcoholic beverages by electrothermal atomic absorption spectrometry (ETAAS) after optimization of the temperature-time program for the graphite furnace. Chromium in wines was determined directly without sample pretreatment. Other samples were first mineralized with HN03 and V2O5. The method was validated, and its analytical characteristics were checked. The detection limit was 1 pg (for a sample volume of 10 μL). Accuracy was 99.20 ± 3.80% for wines and 98.90 ± 2.00% for other beverages. Precision ranged fr

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Alegría, Amparo, Reyes Barberá, Rosaura Farré, Emilia Ferrer, M. Jesús Lagarda, and M. Angeles Torres. "Optimization of Selenium Determination in Human Milk and Whole Blood by Flow Injection Hydride Atomic Absorption Spectrometry." Journal of AOAC INTERNATIONAL 81, no. 2 (1998): 457–61. http://dx.doi.org/10.1093/jaoac/81.2.457.

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abstract A flow injection hydride atomic absorption spectrometry (FI-HAAS) method was developed for determining selenium in human milk and whole blood after microwave digestion of the sample. The sample (2 mL human milk or 0.25 mL blood) was introduced into the microwave vessel with 1.5 mL HN03 and 0.25 mL H202 and 300 W (4 min) and 600 W (4 min) were applied. The digestion was completed by heating to 140 C (2-3 h). Se (VI) was reduced to Se (IV) with hydrochloric acid. The instrumental conditions for FI-HAAS (concentrations of reducing agent and carrier acid, flow rate of argon carrier gas, a

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22

Can, Muhammet, Hüseyin Bülent Üner, Sermet Koç, Mehmet Tok, Sadık Toprak, and Mehmet Dişbudak. "MKE Kurumu Yapımı Tabanca Mermileriyle Yapılan Atışlarda El Üzerinde Kalan Atış Artıklarının Alevsiz Atomik Absorpsiyon Spektrofotometri Yöntemiyle Tespiti." Bulletin of Legal Medicine 10, no. 1 (2005): 5–14. http://dx.doi.org/10.17986/blm.2005101570.

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Ateşli silah kullanılan kriminal olaylarda ateş eden kişinin saptanması, olayın orijininin (intihar, cinayet, kaza) açıklığa kavuşturulmasında büyük önem taşır. Ateş eden kişinin saptanması da esas olarak ateş eden el üzerinde kalan atış artıklarının tespiti ile olasıdır. Çalışmada, Makine Kimya Endüstrisi Kurumu tarafından üretilen tabanca mermileri ile deneysel atışlar yapdarak Alevsiz Atomik Absorpsiyon Spektrofotometri cihazı kullamlmış, atış artıklarının kalitatif ve kantitatif olarak saptanması ve standartlarının oluşturulması amaçlanmıştır. Makine Kimya Endüstrisi Kurumu yapımı 7.65mm B

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23

Barger, Jack H., and Richard W. Hall. "Effects of Simulated Acid Rain on Efficacy of Methoxychlor for ELM Leaf Beetle Control, Delaware County, Ohio, 1987." Insecticide and Acaricide Tests 13, no. 1 (1988): 374–75. http://dx.doi.org/10.1093/iat/13.1.374a.

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Abstract Three-year-old potted trees of a single clone, Ulmus (hybrid '970'), growing under lathhouse conditions were sprayed with methoxychlor and subjected to simulated acid rain (SAR) treatments to determine whether insecticidal efficacy against elm leaf beetle (ELB) adults was affected. The experimental factors were as follows: methoxychlor applied at 0.5%, 3 SAR treatments (pH 3.0; pH 4.2; none), and 3 replicates each. Three elm trees not treated with methoxychlor or SAR served as controls. SAR solutions were made by adjusting the pH of deionized water with 2 parts H2S04 and 1 part HN03 a

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Eze Chinwe Catherine, Ahmad Ahmad Danmama, Anaebonam Emeka, Frank−Ogu Ngozi, Nweze Kenneth Emeka, and Onyemeka Regland Michael. "Assessment of surface water quality of Onuiyieke river in Imo State, Nigeria." GSC Biological and Pharmaceutical Sciences 16, no. 3 (2021): 071–84. http://dx.doi.org/10.30574/gscbps.2021.16.3.0264.

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This research aimed to assess the surface water of Onuiyieke River to ascertain its quality status. Measurements were made on samples collected from seven locations with 500ml sample bottles according to standard methods. Samples for heavy metals were collected in 250ml bottle and fixed with concentrated HN03. Descriptive analysis, variation plots, ANOVA, Duncan Multiple Range tests, Principal Components Analysis (PCA), Pearson Correlation (r) and Water Quality Index (WQI) were used to analyze data. Mean values of the parameters obtained were: Total Suspended Solids (TSS) 198.19 ± 80.93mg/L; E

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Dubois, Normand R., and Jack H. Barger. "Effects of Simulated Acid Rain on Bacillus Thumngiensis Residual Against GYPSY Moth, New Haven County, Connecticut, 1990." Insecticide and Acaricide Tests 16, no. 1 (1991): 273. http://dx.doi.org/10.1093/iat/16.1.273a.

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Abstract Three-yr-old potted white oak seedlings were sprayed with SAN 415 SC 32LV formulation of the NRD-12 strain of B. thuringiensis Berliner, at 1.6 and 8.0 billion international units (BIU)/acre equivalent. Bond at 2% v/v was used as a sticker. At 1, 3, and 7 DAT, plants were subjected to simulated acid rain (SAR) episodes (pH 3.0; pH 4.2; none) to determine if insecticidal efficacy of B. thuringiensis against 2nd-instar GM larvae was affected. Each SAR event delivered 1.3 cm (0.5 inch) in 40 min (3.8 cm; 1.5 inch total). SAR solutions were made by adjusting the pH of Millipore grade wate

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26

Rampal, Pandey, and S. Pandey Daya. "Reactions and structural studies of 4-(1H-benzimidazole-2-yl)-benzonitrile with metal nitrates." Journal of Indian Chemical Society Vol. 89, Aug 2012 (2012): 1123–34. https://doi.org/10.5281/zenodo.5769038.

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Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221 005, Uttar Pradesh, India <em>E-mail</em> : dspbhu@bhu.ac.in Fax: 91-542-2368174 <em>Manuscript received 02 March 2012, accepted 09 March 2012</em> One pot synthesis of 4-(1<em>H</em>-benzimidazole-2-yl)-benzonitrile (1) under mild reaction conditions and metal-organic hybrid of<strong> </strong>4-CN-BIBH with Co<sup>II</sup> salt have been reported for the first time. In the metal-organic hybrid [Co(NO<sub>3</sub>)<sub>2</sub>.4H<sub>2</sub>O, (4-CN-BIBH)] (3), there is no interaction between the metal and 4-C

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Hall, Richard W., and Jack H. Barger. "Effects of Atmospheric Deposition on Efficacy Of Pesticides for Elm Leaf Beetle Control, Delaware, Co., Oh., 1985." Insecticide and Acaricide Tests 12, no. 1 (1987): 350. http://dx.doi.org/10.1093/iat/12.1.350b.

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Abstract One-year-old potted elm, Ulmus spp., cuttings were sprayed with insecticides and subjected to a combination of atmospheric pollutants and acid rain treatments to determine if insecticidal efficacies against elm leaf beetle adults were affected. The experiment was a factorial design. The factors were 3 insecticides (Dursban, Mavrik Aquaflow, Sevin XLR) applied at recommended rates; 2 simulated acid rain (SAR) treatments (4.0 pH, ambient); 2 elm cultivars ('Homestead,' 'Pioneer'); 3 atmospheric pollutant treatments (0.1 ppm 03, 0.2 ppm S02 plus 0.1 ppm 03, ambient); and 3 to 6 replicate

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Fu, Qiaoyu, Junming Jiang, Xubo Li, et al. "Activation of MyD88-Dependent TLR Signaling Modulates Immune Response of the Mouse Heart during Pasteurella multocida Infection." Microorganisms 11, no. 2 (2023): 400. http://dx.doi.org/10.3390/microorganisms11020400.

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Pasteurella multocida (P. multocida) is an important zoonotic pathogen. In addition to lung lesions, necropsies have revealed macroscopic lesions in the heart in clinical cases. However, most previous studies focused on lung lesions while ignoring heart lesions. Therefore, to investigate the immune response of the P. multocida-infected heart, two murine infection models were established by using P. multocida serotype A (Pm HN02) and D (Pm HN01) strains. Histopathological examination revealed heterogeneous inflammatory responses, including immune cell infiltration in the epicardial and myocardi

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Yang, Aixia, Xiaolei Ding, Yuan Feng, Tingting Chen, and Jianren Ye. "Genetic Diversity and Population Structure of Bursaphelenchus xylophilus in Central China Based on SNP Markers." Forests 14, no. 7 (2023): 1443. http://dx.doi.org/10.3390/f14071443.

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Hubei, Hunan and Henan Provinces are located in Central China, a region with extensive transport networks and trade. The pine wilt nematode (PWN), Bursaphelenchus xylophilus, the causative agent of pine wilt disease, is spread mainly through human activities. To further understand the genetic structure of PWN in Central China, we studied the genetic information of PWN populations in this region and compared the genetic relationship with strains from Guangdong and Jiangsu provinces. We found that the HB (Hubei) 15, HEN (Henan) 20, HN (Hunan) 07, HN08 and HN10 had significantly more SNPs and hom

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Chang, Hung-Yau A., Thomas Koop, Luisa T. Molina, and Mario J. Molina. "Phase Transitions in Emulsified HNO3/H2O and HNO3/H2SO4/H2O Solutions." Journal of Physical Chemistry A 103, no. 15 (1999): 2673–79. http://dx.doi.org/10.1021/jp9841034.

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Nelson, K. J. H., A. E. Hughes, R. J. Taylor, B. R. W. Hinton, L. Wilson, and M. Henderson. "Characterisation of aluminium alloys after HNO3/HF–NaOH–HNO3/HF pretreatment." Materials Science and Technology 17, no. 10 (2001): 1211–21. http://dx.doi.org/10.1179/026708301101509287.

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Zhang, Hai Ying, Yi Zheng, Hong Tao Hu, and Jing Yu Qi. "Comparison of Digestion Methods for Analysis of Heavy Metals in MSWI Bottom Ash." Key Engineering Materials 474-476 (April 2011): 1075–80. http://dx.doi.org/10.4028/www.scientific.net/kem.474-476.1075.

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This work aims to develop a proper digestion method for measurement of heavy metal content in municipal solid waste incineration (MSWI) bottom. Different digestion methods by HNO3, HNO3/HCl, HNO3/HCl/HClO4, HNO3/HCl/H2O2, HNO3/HClO4, HNO3/H2O2, were compared in digestion efficiency, and Cu, Pb, Zn and Cd were analyzed using atomic absorption spectrum (AAS). The method using mixed HNO3/HCl/HClO4 was recommended for digestion of MSWI slag for measurement of Cu, Pb, Zn, and the method of HNO3/H2O2 recommended for digestion for measurement of Cd.

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Doan Ha Phong, Nguyen Thu Minh, Nguyen Thi Kim Anh, and Doan Manh Hung. "ESTIMATION OF NITRIC ACID GAS DRY DEPOSITION IN VIET NAM." Tạp chí Khoa học Biến đổi khí hậu, no. 31 (September 25, 2024): 80–85. http://dx.doi.org/10.55659/2525-2496/31.104080.

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This article uses dry deposition calculating method to estimate Nitric acid (HNO3) gas dry deposition and analyze, evaluate trend of HNO3 gas dry deposition in recent years. The results present that HNO3 gas concentration is from 0.02 to 0.83 ppb and Yen Bai site has the highest HNO3 gas emission in 2020 and 2021. High HNO3 gas emission focuses on summer and spring at Northern’s sites. HNO3 gas emission at Southern sites is lower than that of Northern ones. HNO3 gas dry deposition is from 6.63 kg/ha/year to 10.26 kg/ha/year and the highest HNO3 gas dry deposition value is in 2021. Ha Noi site

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Yi, Quan-xiu, Ye-dong He, Ning Peng, Hong-zhou Song, Xiao-fei Yang, and Xiao-yu Cai. "Effects of HNO3 concentration on the pit morphologies of aluminum foil etched in HNO3–HCl and HNO3–H2SO4–HCl solutions." International Journal of Minerals, Metallurgy, and Materials 23, no. 1 (2016): 70–76. http://dx.doi.org/10.1007/s12613-016-1212-5.

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Kleffmann, J., and P. Wiesen. "Heterogeneous conversion of NO<sub>2</sub> and NO on HNO<sub>3</sub> treated soot surfaces." Atmospheric Chemistry and Physics Discussions 4, no. 5 (2004): 6747–67. http://dx.doi.org/10.5194/acpd-4-6747-2004.

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Abstract. In the present study, the heterogeneous conversion of nitrogen oxide (NO) and nitrogen dioxide (NO2) was studied at atmospheric humidity levels on flame soot surfaces, which were treated with gaseous nitric acid (HNO3). In addition, the heterogeneous reaction of HNO3 on soot was investigated at atmospheric humidity. For the treatment of soot by pure HNO3 only reversible uptake with a surface coverage of ~1–2×1014 HNO3 cm−2 was observed for HNO3 mixing ratios in the range 250–800 ppbv. Only for higher HNO3 mixing ratios of >800 ppbv the formation of NO and NO2 was observed. The res

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Kleffmann, J., and P. Wiesen. "Heterogeneous conversion of NO<sub>2</sub> and NO on HNO<sub>3</sub> treated soot surfaces: atmospheric implications." Atmospheric Chemistry and Physics 5, no. 1 (2005): 77–83. http://dx.doi.org/10.5194/acp-5-77-2005.

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Abstract. In the present study, the heterogeneous conversion of nitrogen oxide (NO) and nitrogen dioxide (NO2) was studied at atmospheric humidity levels on flame soot surfaces treated with gaseous nitric acid (HNO3). In addition, the heterogeneous reaction of HNO3 on soot was investigated at atmospheric humidity. For the treatment of soot by pure HNO3 only reversible uptake with a surface coverage of ~1-2x1014 HNO3 cm-2 was observed for HNO3 mixing ratios in the range 250-800ppbv. Only for higher HNO3 mixing ratios of >800ppbv the formation of NO and NO2 was observed. The results were not

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Adisyahputra, F. I. P. Sari, R. G. Mahardika, and G. Afriza. "Solubility of metals content bangka tin tailings sand using inorganic acids." IOP Conference Series: Earth and Environmental Science 926, no. 1 (2021): 012105. http://dx.doi.org/10.1088/1755-1315/926/1/012105.

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Abstract Research entitled Solubility of Metals Content Bangka Tin Tailings Sand Using Inorganic Acids The sample used was tailings sand from tin mining on Bangka Island which was destroyed using several variations of inorganic acids alone, H2SO4, HNO3 and HCl and mixed with H2SO4-HCl, H2SO4-HNO3, HNO3-HCl and H2SO4-HNO3-HCl. Metal content characterization was analyzed using XRF. From the results of the analysis, it was found that the average heavy metals and rare earth metals were more in HNO3 while for a mixture of acids, namely the use of H2SO4-HNO3.

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Vallet, V., B. Antoine, P. Chafey, A. Vandewalle, and A. Kahn. "Overproduction of a truncated hepatocyte nuclear factor 3 protein inhibits expression of liver-specific genes in hepatoma cells." Molecular and Cellular Biology 15, no. 10 (1995): 5453–60. http://dx.doi.org/10.1128/mcb.15.10.5453.

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Transcription of hepatocyte-specific genes requires the interaction of their regulatory regions with several nuclear factors. Among them is the hepatocyte nuclear factor 3 (HNF3) family, composed of the HNF3 alpha, HNF3 beta, and HNF3 gamma proteins, which are expressed in the liver and have very similar fork head DNA binding domains. The regulatory regions of numerous hepatocyte-specific genes contain HNF3 binding sites. We examined the role of HNF3 proteins in the liver-specific phenotype by turning off the HNF3 activity in well-differentiated mhAT3F hepatoma cells. Cells were stably transfe

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Bates, Marcia H., John N. Veenstra, John Barber, et al. "Physical-Chemical Treatment of Acid Mine Water from a Superfund Site." Journal of Environmental Systems 19, no. 3 (1989): 237–63. http://dx.doi.org/10.2190/91vq-hn0e-m2bj-58up.

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Jackson, Amie. "Methodological Issues in Performance of SCI Clinical Trials." Topics in Spinal Cord Injury Rehabilitation 11, no. 3 (2006): 1–11. http://dx.doi.org/10.1310/60dj-8mu1-hnj3-m13h.

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Mathur, Shubhra, Rishi Vyas, S. N. Dolia, Kanu Sachdev, and S. K. Sharma. "Corrosion Behaviour of Amorphous and Nanocrystalline Ti₆₀Ni₄₀ in Aqueous HNO₃ Solution." Advanced Materials Research 67 (April 2009): 173–78. http://dx.doi.org/10.4028/www.scientific.net/amr.67.173.

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Potentiodynamic polarization studies were carried out on amorphous, nanocrystalline and crystalline states of the alloy Ti60Ni40 in 0.1 M HNO3, 0.5 M HNO3 and 1 M HNO3 aqueous solutions at room temperature. It was observed that the amorphous state exhibited higher corrosion current density than that by the nanocrystalline state. These results are corroborated by the weight loss studies performed on the different structural states of Ti60Ni40 alloy in 0.1 M HNO3, 0.5 M HNO3 and 1 M HNO3 aqueous media. Thus the nanocrystalline state is least prone to corrosion than the amorphous and the crystall

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Supriyanto C, Muzakky,. "DESORPSI ION Fe2+, Cr3+, DAN Zn2+ DALAM KONSENTRAT ZIRKON DENGAN HNO3, HCL, HNO3+HCL DAN H2O." GANENDRA Majalah IPTEK Nuklir 19, no. 1 (2016): 37. http://dx.doi.org/10.17146/gnd.2016.19.1.2761.

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ABSTRAK DESORPSI ION Fe2+, Cr3+, DAN Zn2+ DALAM KONSENTRAT ZIRKON DENGAN HNO3, HCL, HNO3+HCL DAN H2O. Telah dilakukan studi tentang desorpsi ion Fe2+, Cr3+, dan Zn2+ dalam konsentrat zirkon dengan HNO3, HCl, HNO3+HCl dan H2O. Tujuan dari penelitian ini (1) mendapatkan data % desorpsi, profil desorpsi dan konstanta desorpsi Fe2+, Cr3+ dan Zn2+ kedalam HNO3, HCl, HNO3+HCl dan H2O. Selanjutnya ke (2) penelitian ini akan memprediksi kecepatan konstanta desorpsi (kdes). Penelitian desorpsi dan konstanta kecepatan desorpsi dilakukan dengan teflon bom digester dengan variasi waktu kontak. Hasil % des

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Muñoz, Antonio R., Juan Ramírez, and L. Javier Palomo. "Posible caso de carroñeo por parte de una marta sobre un petirrojo atropellado en Menorca (Islas Baleares)." Galemys, Spanish Journal of Mammalogy 34 (December 31, 2022): 1. http://dx.doi.org/10.7325/galemys.2022.hn3.

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Nagashima, Ken, Josée Maurais, Ken-ichiro Murata, Yoshinori Furukawa, Patrick Ayotte, and Gen Sazaki. "Appearance and Disappearance of Quasi-Liquid Layers on Ice Crystals in the Presence of Nitric Acid Gas." Crystals 10, no. 2 (2020): 72. http://dx.doi.org/10.3390/cryst10020072.

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The surfaces of ice crystals near the melting point are covered with thin liquid water layers, called quasi-liquid layers (QLLs), which play crucial roles in various chemical reactions in nature. So far, there have been many spectroscopic studies of such chemical reactions on ice surfaces, however, revealing the effects of atmospheric gases on ice surfaces remains an experimental challenge. In this study, we chose HNO3 as a model atmospheric gas, and directly observed the ice basal faces by advanced optical microscopy under partial pressure of HNO3 (~10−4 Pa), relevant to those found in the at

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Boxe, C. S., P. D. Hamer, W. Ford, M. Hoffmann, and D. E. Shallcross. "The effect of the novel HO2 + NO → HNO3 reaction channel at South Pole, Antarctica." Antarctic Science 24, no. 4 (2012): 417–25. http://dx.doi.org/10.1017/s0954102012000144.

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AbstractIt is well established that the reaction of HO2 with NO plays a central role in atmospheric chemistry, by way of OH/HO2 recycling and reduction of ozone depletion by HOx cycles in the stratosphere and through ozone production in the troposphere. Utilizing a photochemical box model, we investigate the impact of the recently observed HNO3 production channel (HO2+NO → HNO3) on NOx (NO + NO2), HOx (OH + HO2), HNO3, and O3 concentrations in the boundary layer at the South Pole, Antarctica. Our simulations exemplify decreases in peak O3, NO, NO2, and OH and an increase in HNO3. Also, mean OH

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Juwitasari, Dhian. "ELUSI LOGAM TEMBAGA DAN KROM ABU LAYANG PEMBANGKIT LISTRIK TENAGA UAP." JURNAL TEKNOLOGI KIMIA MINERAL 2, no. 1 (2023): 38–46. http://dx.doi.org/10.61844/jtkm.v2i1.441.

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Penelitian elusi logam berat tembaga dan krom dari sampel abu layang pembangkit listrik tenaga uap (PLTU) Cirebon. Variabel dalam penelitian elusi logam tembaga dan krom dari abu layang PLTU adalah jenis eluen, konsentrasi eluen, pH eluen, dan elusi berkelanjutan. Kadar logam tembaga dan krom diukur menggunakan metode spektroskopi serapan atom (SSA). Sampel yang dielusi yang lolos ayakan ukuran 200 mesh. Kadar air dihilangkan dengan cara sampel abu layang di oven pada 105 oC selama 24 jam. Penelitian ini menggunakan paralon dalam pembuatan kolom. Proses elusi dilakukan dengan memasukkan abu la

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Boonbumrung, Atip, Pongdhorn Sea-Oui, and Chakrit Sirisinha. "Dispersion Enhancement of Multi-Walled Carbon Nanotube (MWCNT) in Nitrile Rubber (NBR)." Advanced Materials Research 747 (August 2013): 59–62. http://dx.doi.org/10.4028/www.scientific.net/amr.747.59.

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Attempts to enhance dispersion degree of multi-walled carbon nanotubes (CNT) in nitrile rubber (NBR) matrix, and to improve the NBR-CNT interaction were carried out by different approaches, namely, sonication and chemical treatments of CNTs with nitric acid (HNO3), nitric-sulfuric acid mixture (HNO3/H2SO4) and potassium permanganate (KMnO4). Rheological behavior of NBR/CNT composites was monitored as an indication of filler dispersion degree using the Rubber Process Analyzer (RPA2000) via the alteration in Payne effect. Results gained reveal the magnitude of Payne effect in the following order

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Shan, Changgong, Huifang Zhang, Wei Wang, et al. "Retrieval of Stratospheric HNO3 and HCl Based on Ground-Based High-Resolution Fourier Transform Spectroscopy." Remote Sensing 13, no. 11 (2021): 2159. http://dx.doi.org/10.3390/rs13112159.

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Vertical profiles and stratospheric HNO3 and HCl columns are retrieved by ground-based high resolution Fourier transform infrared spectroscopy (FTIR) remote sensing measurements at the Hefei site in China. The time series of stratospheric HNO3 and HCl columns from January 2017 to December 2019 showed similar annual variation trends, with an annually decreasing rate of (−9.45 ± 1.20)% yr−1 and (−7.04 ± 0.81)% yr−1 for stratospheric HNO3 and HCl, respectively. The seasonal amplitudes of stratospheric HNO3 and HCl are 2.67 × 1015 molec cm−2 and 4.76 × 1014 molec cm−2 respectively, both reaching t

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Ang, S. L., A. Wierda, D. Wong, et al. "The formation and maintenance of the definitive endoderm lineage in the mouse: involvement of HNF3/forkhead proteins." Development 119, no. 4 (1993): 1301–15. http://dx.doi.org/10.1242/dev.119.4.1301.

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Little is known about genes that govern the development of the definitive endoderm in mammals; this germ layer gives rise to the intestinal epithelium and various other cell types, such as hepatocytes, derived from the gut. The discovery that the rat hepatocyte transcription factor HNF3 is similar to the Drosophila forkhead gene, which plays a critical role in gut development in the fly, led us to isolate genes containing the HNF3/forkhead (HFH) domain that are expressed in mouse endoderm development. We recovered mouse HNF3 beta from an embryo cDNA library and found that the gene is first exp

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Kashcheyeva, Еkaterina I., Еkaterina А. Skiba, Vladimir N. Zolotukhin, and Vera V. Budaeva. "Recycling of nitric acid solution in chemical pretreatment of oat hulls for biorefining." BioResources 15, no. 1 (2020): 1575–86. http://dx.doi.org/10.15376/biores.15.1.1575-1586.

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The pretreatment of lignocellulosic bioresources is a key step in obtaining fermentable sugars. The present study explored the recycling of an HNO3 cooking solution during one-step chemical pretreatment of oat hulls and examined the enzymatic hydrolysis performance of the resultant substrates. Two series of experiments on solution recycling were performed: stabilization and experimental elevation of HNO3 concentration by adding 70 wt% HNO3. When the HNO3 concentration was stabilized at 4.4 wt%, the solution could be used five times. Meanwhile, when the HNO3 concentration was experimentally ele

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