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Journal articles on the topic 'Sulphite ion'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Denger, Karin, Theo H. M. Smits, and Alasdair M. Cook. "L-Cysteate sulpho-lyase, a widespread pyridoxal 5′-phosphate-coupled desulphonative enzyme purified from Silicibacter pomeroyi DSS-3T." Biochemical Journal 394, no. 3 (2006): 657–64. http://dx.doi.org/10.1042/bj20051311.

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Quantitative utilization of L-cysteate (2-amino-3-sulphopropionate) as the sole source of carbon and energy for growth of the aerobic, marine bacterium Silicibacter pomeroyi DSS-3T was observed. The sulphonate moiety was recovered in the medium largely as sulphite, and the appropriate amount of the ammonium ion was also observed. Genes [suyAB (3-sulpholactate sulpho-lyase)] encoding the known desulphonation reaction in cysteate degradation were absent from the genome, but a homologue of a putative sulphate exporter gene (suyZ) was found, and its neighbour, annotated as a D-cysteine desulphhydr

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2

N., C. Sarada, and Ajit Kumar Reddy I. "Micellar effects on the reduction of Orange-II by sulphite ions." Journal of Indian Chemical Society Vol. 83, Feb 2006 (2006): 135–40. https://doi.org/10.5281/zenodo.5816669.

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Department of Chemistry. Yell ore Institute of Technology, Deemed University. Vellore-632 014, Tamilnadu, India <em>E-mail</em> : ncsarada@yahoo.com Department of Chemistry, National Institute of Technology, Warangal-506 004, Andhra Pradesh. India <em>Manuscript received 22 September 2004, revised 5 October 2005. accepted 26 October 2005</em> The kinetic studies on the reduction of Orange-II by sulphite ion in a buffer medium of pH 7.0 revealed that the reaction is first order with respect to Orange-II and sulphite ion concentrations. A suitable mechanism is proposed based on the results. Cati

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3

Michigami, Yoshimasa, and Kazumasa Ueda. "Sulphite stabilizer in ion chromatography." Journal of Chromatography A 663, no. 2 (1994): 255–58. http://dx.doi.org/10.1016/0021-9673(94)85252-9.

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4

S., Radjarejesri, and C. Sarada N. "Kinetic investigations on the reduction of azo dyes in absence and presence of micelle forming surfactants." Journal of Indian Chemical Society Vol. 90, Dec 2013 (2013): 2223–30. https://doi.org/10.5281/zenodo.5793875.

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Department of Chemistry, Sona College of Technology, Salem-636 005, Tamilnadu, India <em>E-mail </em>: uma.seshayer@gmail.com Chemistry Division, School of Advanced Sciences, VIT University, Vellore-632 014, Tamilnadu, India <em>E-mail</em> : ncsarada@yahoo.com <em>Manuscript received online 20 September 2012, revised 20 December 2012, accepted 22 January 2013</em> The kinetic studies on the reduction of Ponceau-4R and Ponceau-S by sodium sulphite was studied in the absence and presence of micelle forming surfactants, cetyltrimethylammonium bromide (CT AB) and sodium dodecyl sulphate (SDS). Th

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5

Wedzicha, B. "Kinetics of the sulphite-inhibited Maillard reaction: The effect of sulphite ion." Food Chemistry 27, no. 4 (1988): 259–71. http://dx.doi.org/10.1016/0308-8146(88)90011-8.

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6

A. Abed Al-Hadi, Bassima. "Spectrophotometric determination of sulphite and thiamin hydrochloride using proton transfer reaction-application to water sample and pharmaceutical formation." Tikrit Journal of Pure Science 24, no. 1 (2019): 74. http://dx.doi.org/10.25130/j.v24i1.781.

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In this research, an easy, acurate and rapid spectrophotometric method for determination of sulphite and thiamine hydrochloride is described. This method used proton transfer reaction between sulphite ion with alizarine at (pH 6.73) to develop red colour adduct that bears maximum absorption at 524 nm. This method was developed to determination of thiamine hydrochloride by bleaching the red colour (alizarine-sulphite product) at the optimum conditions established for the determination of sulphite. Beer’s law is obeyed in the concentration range (10-1000) μg/25ml (0.4-40) of sulphite and 10-1500

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7

Bassima A. Abed Al-Hadi. "Spectrophotometric determination of sulphite and thiamin hydrochloride using proton transfer reaction-application to water sample and pharmaceutical formation." Tikrit Journal of Pure Science 24, no. 1 (2019): 74–81. http://dx.doi.org/10.25130/tjps.v24i1.333.

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In this research, an easy, acurate and rapid spectrophotometric method for determination of sulphite and thiamine hydrochloride is described. This method used proton transfer reaction between sulphite ion with alizarine at (pH 6.73) to develop red colour adduct that bears maximum absorption at 524 nm. This method was developed to determination of thiamine hydrochloride by bleaching the red colour (alizarine-sulphite product) at the optimum conditions established for the determination of sulphite. Beer’s law is obeyed in the concentration range (10-1000) μg/25ml (0.4-40) of sulphite and 10-1500

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8

Coulter, Alison, and J. Colin Slaughter. "Sulphate determination by ion chromatography in the presence of sulphite and organic acids." Biotechnology Techniques 9, no. 10 (1995): 697–700. http://dx.doi.org/10.1007/bf00159231.

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9

S., Radjarejesri, and C. Sarada N. "Kinetic studies on the reduction of dithiazone by sulphite ions in micellar media." Journal of Indian Chemical Society Vol. 84, June 2007 (2007): 554–58. https://doi.org/10.5281/zenodo.5820646.

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 Department of Chemistry, Sona College of Technology, Thiagarajar Polytechnic Road, Salem-636 005,  Tamilnadu, India E-mail: uma_vijay@mailcity.com School of Science & Humanities, Chemistry Division, VIT University, Vellore-632 014, Tamilnadu, India Centre for Bioseparation Technology (CBST), VIT University, Vellore-632 014, Tamilnadu, India <em>E-mail</em> : ncsarada@yahoo.com <em>Manuscript received 26 December 2006, accepted 28 March 2007</em> This study reveals the micellar effects on the rate of reduction of dithiazone, an azo compound by sulphite ions in a buffer medium of

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10

Michigami, Yoshimasa, Masaya Morooka, and Kazumasa Ueda. "Determination of sulphite and sulphate by ion chromatography using a weakly basic phthalate eluent." Journal of Chromatography A 732, no. 2 (1996): 403–7. http://dx.doi.org/10.1016/0021-9673(95)01326-1.

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11

Wedzicha, B. L., and C. L. Allen. "Kinetic effect of sulphite ion on ester hydrolysis." Food Chemistry 49, no. 1 (1994): 73–75. http://dx.doi.org/10.1016/0308-8146(94)90235-6.

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12

Ehigie, Adeola F., Raphael E. Okonji, Fiyinfoluwa D. Ojeniyi, Mary O. Jesulade, and Leonard O. Ehigie. "Physicochemical Properties of 3-Mercaptopyruvate Sulfurtransferase: A Cyanide Detoxifying Enzyme from the Hemolymph of Limicolaria flammae (Garden Snail)." Pan African Journal of Life Sciences 4, no. 2 (2020): 68–76. http://dx.doi.org/10.36108/pajols/0202/40(0250).

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Background: 3-Mercaptopyruvate sulfurtransferase (3-MST) is a multifunctional, mitochondrial and cytoplasmic sulphurtransferase that catalyses the detoxification of cyanide to a less toxic thiocyanate. Limicolaria flammea feeds majorly on green leaves, plants and other cyanide containing foods. Methods: 3-MST from the hemolymph of Limicolaria flammae was purified by 70 % ammonium sulphate precipitation and ion exchange chromatography. The purified enzyme was characterized at different levels such as optimal activity, inhibitors, substrate preference, thermal stability and analysis of ki-netic

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13

Kesiũnaitė, Giedrė, Birutė Pranaitytė, Audrius Padarauskas, Arvydas Dikčius, and Romas Ragauskas. "Ion-pair chromatographic monitoring of photographic effluents." Open Chemistry 5, no. 2 (2007): 455–65. http://dx.doi.org/10.2478/s11532-007-0013-0.

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AbstractIon-pair chromatographic technique was developed for the rapid and simple determination of the main contaminants (bromide, iodide, sulphite, thiosulphate, thiocyanate, iron(III)-EDTA chelate, free EDTA, hydroquinone and phenidone) in spent photographic solutions. Free EDTA was converted into stable Ni(II)-EDTA chelate prior to analysis. The optimal mobile phase conditions were established by varying the concentrations of tetrabutylammonium (TBA) phosphate and acetonitrile, pH and ionic strength. Separation of five inorganic anions, two metal chelates and two neutral compounds was accom

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14

Salvitti, Chiara, Federico Pepi, Anna Troiani, Marzio Rosi, and Giulia de Petris. "The Peroxymonocarbonate Anion HCO4− as an Effective Oxidant in the Gas Phase: A Mass Spectrometric and Theoretical Study on the Reaction with SO2." Molecules 28, no. 1 (2022): 132. http://dx.doi.org/10.3390/molecules28010132.

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The peroxymonocarbonate anion, HCO4−, the covalent adduct between the carbon dioxide and hydrogen peroxide anion, effectively reacts with SO2 in the gas phase following three oxidative routes. Mass spectrometric and electronic structure calculations show that sulphur dioxide is oxidised through a common intermediate to the hydrogen sulphate anion, sulphur trioxide, and sulphur trioxide anion as primary products through formal HO2−, oxygen atom, and oxygen ion transfers. The hydrogen sulphite anion is also formed as a secondary product from the oxygen atom transfer path. The uncommon nucleophil

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15

Yoshikawa, Kenji, Yuki Uekusa, and Akio Sakuragawa. "Determination of sulphite in wines using suppressed ion chromatography." Food Chemistry 174 (May 2015): 387–91. http://dx.doi.org/10.1016/j.foodchem.2014.11.066.

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16

Myers, Jonathan D., and David J. Kelly. "A sulphite respiration system in the chemoheterotrophic human pathogen Campylobacter jejuni." Microbiology 151, no. 1 (2005): 233–42. http://dx.doi.org/10.1099/mic.0.27573-0.

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The ability to use sulphite as a respiratory electron donor is usually associated with free-living chemolithotrophic sulphur-oxidizing bacteria. However, this paper shows that the chemoheterotrophic human pathogen Campylobacter jejuni has the ability to respire sulphite, with oxygen uptake rates of 23±8 and 28±15 nmol O2 min−1 (mg cell protein)−1 after the addition of 0·5 mM sodium sulphite or metabisulphite, respectively, to intact cells. The C. jejuni NCTC 11168 Cj0004c and Cj0005c genes encode a monohaem cytochrome c and molybdopterin oxidoreductase, respectively, homologous to the sulphite

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17

Mukherji, Ajanta. "Status of Drinking-water in Nadia district, West Bengal, India – a Two-year Surveillance Report for Chemical Contaminants." International Journal of Science and Social Science Research 1, no. 2 (2023): 231–38. https://doi.org/10.5281/zenodo.13380546.

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A study was undertaken to determine the status of drinking water in Nadia district, West Bengal, India with regards to chemical contaminants which are capable of causing serious health hazard, if not within permissible limit. Total 56 water samples were collected from different households in Nadia for two years 2017-2018 and were analysed for chemical contaminants. In 2017, the water samples were analyzed for eleven parameters – Total Alkalinity (TA), pH, arsenic (As), iron (Fe), fluoride ion (F-), chloride ion (Cl-), residual chlorine (Res. Cl2), phosphate (PO43-), nitrate (NO3-), nitri

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18

Wulansari, Isma. "Sulfiden Removal by Catalitic Oxidation From Rayon Waste." Devotion Journal of Community Service 4, no. 2 (2023): 615–23. http://dx.doi.org/10.36418/devotion.v4i2.414.

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Catalytic oxidation of spent sulfidic caustic consist of SH- ion or NaHS compound by H 2 O2 in neutral or acidic solution to elemental sulphur may provide a convenient and economical method for the control of sulphide wastes and their associated odors at pulp, paper and textile industry. Oxidation of sulfide in rayon waste by hydrogen peroxide was investigated in the presence of ferric sulfate catalyst. Kinetic equations and activation energies of H 2 O2 and SH- ion to total sulphur and sulphate in rayon waste for catalytic oxidation reaction were calculated based on the experimental results.

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19

Hwang, Bing Joe, Tse‐Chuan Chou, and Kung‐Ming Hong. "Oxidation of sulphite at higher concentration of cobaltous ion catalyst." Journal of the Chinese Institute of Engineers 10, no. 5 (1987): 531–38. http://dx.doi.org/10.1080/02533839.1987.9677006.

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20

Ejaz, Haroon, Eshrat Bibi, Waqas Ali, et al. "Sulphur and particulate matter affecting on soil and underground plants." Journal of Agriculture and Applied Biology 3, no. 1 (2022): 40–49. http://dx.doi.org/10.11594/jaab.03.01.05.

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Environmental problems were faced, and one of them is the accumulation of Sulphur and its compounds in the atmosphere and through the atmosphere, it accumulates in the soil and then the underground plants. In the atmosphere Sulphur it is present in the form of aerosols and acid precipitation. Volatile Sulphur compounds are released by the combustion of fossil fuels and volcanic eruption also produces Sulphur oxides. Deficiency of Sulphur produces paling of plants and denaturing of some enzymes that are then fulfilled by using the fertilizers of Sulphur. Soil also has an adverse effect when par

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21

Sukru Kalayci, Sukru Kalayci. "High Sensitivity Sulphite Membrane Selective Electrode and its Application." Journal of the chemical society of pakistan 43, no. 4 (2021): 451. http://dx.doi.org/10.52568/000590/jcsp/43.04.2021.

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In this study, the new sulphite sensitive ion-selective electrode (ISE) was prepared. The ISE was prepared from a combination of 5% perfluorooctanesulfonic acid (PFOS), 40% PVC and 55% dibutylphthalate (DBF).The sensitivity of the ISE to 1.0x10- 7-1.0x10-1 M sulphite concentration was 58 and#177; 4 mV. Electrode sensitivity was characterized. The response time of this electrode is short and 30 s. The lifetime of ISE was approximately 210 days when used five times a day. It was determined that it can work at any pH value. It is not sensitive to anions and cations that may be present in the dete

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22

Sukru Kalayci, Sukru Kalayci. "High Sensitivity Sulphite Membrane Selective Electrode and its Application." Journal of the chemical society of pakistan 43, no. 4 (2021): 451. http://dx.doi.org/10.52568/000590.

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In this study, the new sulphite sensitive ion-selective electrode (ISE) was prepared. The ISE was prepared from a combination of 5% perfluorooctanesulfonic acid (PFOS), 40% PVC and 55% dibutylphthalate (DBF).The sensitivity of the ISE to 1.0x10- 7-1.0x10-1 M sulphite concentration was 58 and#177; 4 mV. Electrode sensitivity was characterized. The response time of this electrode is short and 30 s. The lifetime of ISE was approximately 210 days when used five times a day. It was determined that it can work at any pH value. It is not sensitive to anions and cations that may be present in the dete

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23

Gao, Kangning, Jie Lu, Xi Wang, Dengxin Li, and Shihong Xu. "Effect of cations on the removal rate of chloride ions and mechanism analysis in high-salt wastewater." Water Science and Technology 83, no. 9 (2021): 2232–41. http://dx.doi.org/10.2166/wst.2021.098.

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Abstract Precipitation dechlorination has the advantage of being a simple process with a low cost. However, there are few reports on the effect of cations on dechlorination. In this study, we investigated the effect of cations in high-salt wastewater on the removal of chlorine ions by cuprous chloride precipitation and analysed the corresponding mechanism. A series of investigations revealed that Fe3+ could oxidise sulphite, thereby reducing the removal rate of chlorine ions. The reaction between magnesium and sulphite results in precipitation, which has a slightly adverse effect on the remova

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24

S., P. CHATTOPADHYAY, and K. DAS ARABINDA. "Determination of Sulphite by the Molecular Complex Formation." Journal of Indian Chemical Society Vol. 63, Oct 1986 (1986): 923–24. https://doi.org/10.5281/zenodo.6302362.

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Department of Chemistry, University of Bordwan, Burdwan-713 104 <em>Manuscript received 28 April 1986, revised 5 August 1986, accepted 12 August 1986</em> Formation of a molecular complex of sulphite ion with mesitylene provides a simple and selective spectrophotometric method (λ<sub>rnim</sub> 305 nm) for its determination in 1.0 to 3.5 <em>N </em>sulphuric acid medium. Beer's law has been found to <em>be </em>obeyed for a long range 0.6-110.6 ppm of sulphite. The molar absorptivity and Sandell sensitivity values are respectively 1.3 x 10<sup>3</sup> dm<sup>2 </sup>mol<su

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25

McCormick, Malcolm J., and Lisa M. Dixon. "Determination of sulphite in fixers and photographic effluents by ion chromatography." Journal of Chromatography A 322 (January 1985): 478–83. http://dx.doi.org/10.1016/s0021-9673(01)97714-3.

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26

Wedzicha, B. L., and S. J. Goddard. "The dissociation constant of hydrogen sulphite ion at high ionic strength." Food Chemistry 30, no. 1 (1988): 67–71. http://dx.doi.org/10.1016/0308-8146(88)90025-8.

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27

Lawrence, James F., and Claudette F. Charbonneau. "Separation of sulphite adducts by ion chromatography with oxidative amperometric detection." Journal of Chromatography A 403 (January 1987): 379–82. http://dx.doi.org/10.1016/s0021-9673(00)96381-7.

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28

Wedzicha, B. L., and M. T. Kaputo. "Melanoidins from glucose and glycine: composition, characteristics and reactivity towards sulphite ion." Food Chemistry 43, no. 5 (1992): 359–67. http://dx.doi.org/10.1016/0308-8146(92)90308-o.

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29

Fernandes, D. L. A., C. M. Silva, A. M. R. B. Xavier, and D. V. Evtuguin. "Fractionation of sulphite spent liquor for biochemical processing using ion exchange resins." Journal of Biotechnology 162, no. 4 (2012): 415–21. http://dx.doi.org/10.1016/j.jbiotec.2012.03.013.

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30

Chandrawat, Uttra, Aditya Prakash, and Raj N. Mehrotra. "Kinetics and mechanism of the oxidation of the sulphite ion by the Mn(III)–cydta complex ion." Canadian Journal of Chemistry 73, no. 9 (1995): 1531–37. http://dx.doi.org/10.1139/v95-190.

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The reinvestigated oxidation of S(IV), HSO3−/SO32−ions, by [Mn(cydta)(OH)]− confirmed that S(IV) is oxidized in two parallel paths; the order with respect to [S(IV)] is one in one of the paths and two in the other. The nature of the dependence of the rate on [H+] is also confirmed. However, the rapid scan of the reaction mixture and measurement of the initial absorbance of the reaction mixture at different wavelengths at the beginning of the reaction suggest an outer-sphere mechanism. The rate parameters are of the same order as obtained in known reactions of an outer-sphere mechanism and this

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31

Grano, S. R., H. Cnossen, W. Skinner, C. A. Prestidge, and J. Ralston. "Surface modifications in the chalcopyrite-sulphite ion system, II. Dithiophosphate collector adsorption study." International Journal of Mineral Processing 50, no. 1-2 (1997): 27–45. http://dx.doi.org/10.1016/s0301-7516(97)00003-3.

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32

de Medina, Hilda Ledo, Elizabeth Gutiérrez, Marinela Colina de Vargas, Graciela González, Julio Marín, and Eduardo Andueza. "Determination of phosphate and sulphite in natural waters in the presence of high sulphate concentrations by ion chromatography under isocratic conditions." Journal of Chromatography A 739, no. 1-2 (1996): 207–15. http://dx.doi.org/10.1016/0021-9673(96)00336-6.

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33

Bhattacharyya, S., P. C. Banerjee, and P. K. Das. "A plasma-membrane associated ATPase from the acidophilic bacteriu Acidiphilium cryptum." Biochemistry and Cell Biology 68, no. 10 (1990): 1222–25. http://dx.doi.org/10.1139/o90-181.

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A membrane-bound ATPase of Acidiphilium cryptum, an acidophilic bacterium of mine origin, has been studied. The enzyme has a pH optimum of 8.4. Mg2+ is required for its activity and could be replaced by Mn2+, but not by Ca2+.The enzyme shows a strong preference for ATP as substrate, with the apparent Km of about 0.2 mM. Sulphite ion significantly stimulated the enzyme activity. N,N′ -Dicyclohexylcarbodiimide, oligomycin, and azide strongly inhibited the enzyme, whereas vanadate was without effect, suggesting that the A. cryptum ATPase might be of FOF1 type.Key words: Acidiphilium cryptum, ATPa

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34

Y., K. Gupta. "Some aspects of a chemical relationship. Kinetics and Analytical Chemistry in the service of each other." Journal of Indian Chemical Society Vol. 83, May 2006 (2006): 468–78. https://doi.org/10.5281/zenodo.5819365.

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Department of Chemistry. University of Rajasthan, Jaipur-302 004, India E-mail : ykgl924@yahoo.com <em>Manuscript received 5 October 2005, accepted 16 January 2006</em> Synopsis (A) Contribution of Kinetics to Analytical Chemistry (1) Trace metal-ion catalysis and its determination kinetically (2) General metal-ion catalysis and its kinetic determination (3) Volumetric methods (4) Fe<sup>II</sup> as a pre-reductor for the determination of H<sub>2</sub>0<sub> 2</sub> with Tl<sup>III</sup> (5) Nature of acid monitoring the reactivity and course of a metal-ion reaction (6) Modification of known m

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35

Grano, S. R., M. Sollaart, W. Skinner, C. A. Prestidge, and J. Ralston. "Surface modifications in the chalcopyrite-sulphite ion system. I. collectorless flotation, XPS and dissolution study." International Journal of Mineral Processing 50, no. 1-2 (1997): 1–26. http://dx.doi.org/10.1016/s0301-7516(96)00046-4.

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36

Kirschenbaum, Louis J., Issifou Kouadio, and Edoardo Mentasti. "Kinetics of the reduction of the tetrahydroxyargentate(III) ion by sulphite in aqueous alkaline media." Polyhedron 8, no. 10 (1989): 1299–305. http://dx.doi.org/10.1016/s0277-5387(00)86527-4.

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37

Zheng, Xiaohong, Wenfang Gao, Xihua Zhang, et al. "Spent lithium-ion battery recycling – Reductive ammonia leaching of metals from cathode scrap by sodium sulphite." Waste Management 60 (February 2017): 680–88. http://dx.doi.org/10.1016/j.wasman.2016.12.007.

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38

Dovorogwa, Hamlton, and Kevin Harding. "Exploring the Use of Tobacco Waste as a Metal Ion Adsorbent and Substrate for Sulphate-Reducing Bacteria during the Treatment of Acid Mine Drainage." Sustainability 14, no. 21 (2022): 14333. http://dx.doi.org/10.3390/su142114333.

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Treatment of acid mine drainage (AMD) was successfully demonstrated using tobacco waste (dust and stem) as a metal cation adsorbent, pH modifier and carbon source for sulphate-reducing bacteria (SRB). Synthetic and industrial AMD wastewaters were used in batch adsorption and SRB facilitated bioremediation experiments. Up to absorbent loading of 80 g/L, metal removal increased. However, increases above 160 g/L did not offer a proportional increase. At an adsorbent loading of 80 g/L, the highest metal removals of 38, 41, 31 and 43% for iron, nickel, copper and zinc respectively were achieved. Th

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39

Campanella, L. "Behaviour of different eluents and stabilizing agents in the determination of sulphite in water by ion-chromatography." Talanta 37, no. 2 (1990): 201–5. http://dx.doi.org/10.1016/0039-9140(90)80023-9.

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40

McDonald, Mervin, Stephen Piercey, Graham Layne, Lee Pigage, and Glenn Piercey. "Mineral Assemblages, Textures and In Situ Sulphur Isotope Geochemistry of Sulphide Mineralization from the Cyprus-Type Ice Volcanogenic Massive Sulphide (VMS) Deposit, Yukon, Canada." Minerals 8, no. 11 (2018): 501. http://dx.doi.org/10.3390/min8110501.

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The Permian (~273–274 Ma) Ice volcanogenic massive sulphide (VMS) deposit represents a mound shaped Cyprus (mafic)-type VMS deposit (~4.5 Mt @ 1.5% Cu) hosted in basaltic rocks of Slide Mountain terrane. The deposit consists of massive sulphides that are underlain by a chlorite-sulphide-hematite-rich stringer pipe, and overlain by a hematite-(pyrite)-rich exhalative chert. The sulphides are divided into five facies: (1) pyrite-rich; (2) pyrite-bornite-rich; (3) pyrite-chalcopyrite-rich; (4) hematite-pyrite; and (5) stringer sulphide. The sulphides have a distinct paragenetic and textural evolu

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41

Warner, C. R., D. H. Daniels, M. C. Fitzgerald, F. L. Joe, and G. W. Diachenko. "Determination of free and reversibly bound sulphite in foods by reverse‐phase, ion‐pairing high‐performance liquid chromatography." Food Additives and Contaminants 7, no. 5 (1990): 575–81. http://dx.doi.org/10.1080/02652039009373922.

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42

Gerritse, R. G., and J. A. Adeney. "Rapid determination in water of chloride, sulphate, sulphite, selenite, selenate and arsenate among after inorganic and organic solutes by ion chromatography with UV detection below 195 nm." Journal of Chromatography A 347 (January 1985): 419–28. http://dx.doi.org/10.1016/s0021-9673(01)95517-7.

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43

M., L. Parmar, and Sharma Praveen. "A comparative study on viscosities of some hydrated and anhydrous salts of transition metal sulphates and magnesium sulphate in water at different temperatures." Journal of Indian Chemical Society Vol. 85, Nov 2008 (2008): 1146–47. https://doi.org/10.5281/zenodo.5820476.

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Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla-171 005, Himachal Pradesh, India <em>Manuscript received 31 March 2008, revised 26 June 2008, accepted 25 August 2008</em> Relative viscosities for the aqueous solutions of some hydrated and anhydrous salts of transition metal sulphates viz. cobalt sulphate, nickel sulphate, copper sulphate and zinc sulphate, and magnesium sulphate have been determined (in the concentration range 0.005-0.100 ± 0.001 mol kg-1) at five equidistant [298.15, 303.15, 308.15, 313.15 and 318.15 K] temperatures. The data have been ev

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Li, Zhenli, Lin Ye, Yusi Hu, Zhilong Huang, Chen Wei, and Tao Wu. "Origin of the Fule Pb–Zn deposit, Yunnan Province, SW China: insight from in situ S isotope analysis by NanoSIMS." Geological Magazine 157, no. 3 (2019): 393–404. http://dx.doi.org/10.1017/s0016756819000852.

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AbstractThe Sichuan–Yunnan–Guizhou (SYG) Pb–Zn metallogenic province is one of the most productive areas of Pb–Zn resources in China. The Fule deposit occurs in Permian carbonate and contains Pb–Zn reserves exceeding 1 Mt. To investigate the sulphur source, in situ S isotopic analysis of sphalerite and pyrite was carried out using nanoscale secondary-ion mass spectrometry. The results show that the δ34S values of the sulphide minerals range from +16.1‰ to +23.0‰, higher than that of marine sulphates hosted in Permian carbonate rocks (+11‰), but similar to that of sulphates over a broader area

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Wang, Quanyu, Simon Dove, Fleur Shearman, and Melina Smirniou. "Evaluation of methods of chloride ion concentration determination and effectiveness of desalination treatments using sodium hydroxide and alkaline sulphite solutions." Conservator 31, no. 1 (2008): 67–74. http://dx.doi.org/10.1080/01410096.2008.9995233.

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Sharma, V. K. "Disinfection performance of Fe(VI) in water and wastewater: a review." Water Science and Technology 55, no. 1-2 (2007): 225–32. http://dx.doi.org/10.2166/wst.2007.019.

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Ferrate(VI) [FeVIO2−4, Fe(VI)] has excellent disinfectant properties and can inactivate a wide variety of microorganisms at low Fe(VI) dosages. The final product of Fe(VI) is Fe(III), a non-toxic compound. The treatment by Fe(VI) does not give any chlorination by-products, which makes Fe(VI) an environmentally-friendly ion. The results demonstrate that Fe(VI) can inactivate Escherichia coli (E. coli) at lower dosages or shorter contact time than hypochlorite. Fe(VI) can also kill many chlorine resistant organisms, such as aerobic spore-formers and sulphite-reducing clostridia, and would be hig

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Spring, K. A., and J. W. Evans. "An investigation of sulphite ion oxidation as an alternative anodic reaction in fluidized bed electrowinning or other high rate electrolysis cells." Journal of Applied Electrochemistry 15, no. 4 (1985): 609–18. http://dx.doi.org/10.1007/bf01059303.

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Trembàczowski, Andrzej. "Sulphur and Oxygen Isotopes Behaviour in Sulphates of Atmospheric Ground water System Observations and Model." Hydrology Research 22, no. 1 (1991): 49–66. http://dx.doi.org/10.2166/nh.1991.0004.

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Comparison of sulphate concentrations in groundwaters and atmospheric precipitation suggests that about 30 % of groundwater sulphate may be of atmospheric origin. Another source of sulphate ion is the oxidation of sulphur compounds by microorganisms in the soil or in the aquifer. The sulphates of atmospheric and biogenic origin are mixed in the soil and subsequently the mixture gets into the groundwater. The ð34S data suggest, that ð34S of biogenic sulphates is the same as that of atmospheric sulphates. Processes such as: the assimilation of sulphates by plants, their decay and oxidation of or

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Podobas, Ewa Izabela, and Agnieszka Rożek. "Effect of copper upon the actions of sulphate-reducing bacteria isolated from soil contaminated by crude oil and heavy metals / Wpływ miedzi na aktywność bakterii redukujących siarczany wyizolowanych z gleby zanieczyszczonej ropą naftową i metalami ciężkimi." Ochrona Srodowiska i Zasobów Naturalnych 26, no. 4 (2015): 20–25. http://dx.doi.org/10.1515/oszn-2015-0028.

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Abstract In the present study, copper tolerance by a mixed culture of sulphate-reducing bacteria (SRB) were evaluated. These sulphidogenic microbial communities were isolated from soils polluted by crude oil, oil-derived products and heavy metals (from selected areas of crude oil mines in south-eastern Poland). Copper tolerance of SRB was tested in modified Postgate C medium with ethanol and lactate as the sole carbon source and copper chloride at concentrations ranging from 0 to 1500 mg/l. Bacterial growth and sulphate reduction were possible between 100 and 1500 mg/l of initial copper concen

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Hu, Chun Hua, Jian Huang, Hai Shan Zhao, Shi Ning Ma, and Yu Lin Qiao. "Tribological Performances of FeS Solid Lubrication Duplex Layer under Liquid Paraffin Oil with n-Al₂O₃ Lubrication." Advanced Materials Research 291-294 (July 2011): 1526–31. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.1526.

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FeS solid lubrication duplex layer was prepared on the surface of 45 steel by ion nitrocarburizing-ion sulphurizing process. The sulphide grains and holes all in micron and nano scale and distributing equably in the sulphide surface layer with 10 μm thickness of the duplex layer. The duplex layer is composed of FeS, FeS2 and Fe3N. Under liquid paraffin oil with 0.1wt% n-Al2O3 lubrication, the synergistic effect between n-Al2O3 and the duplex layer is produced, and the chemical reaction films including sulphide, sulphate and nitride is formed, which makes the friction factor of the duplex layer

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