Automated determination of nitrate plus nitrite in aqueous samples with flow injection analysis using vanadium (III) chloride as reductant

Shu, Wang; Lin, Kunning; Chen, Nengwang; Yuan, Dongxing; Ma, Jian

doi:10.1016/j.talanta.2015.06.031

Cited by 60 publications

(25 citation statements)

References 21 publications

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“…This analytical approach is attractive as a good alternative over traditional methods because of high throughput analysis, the low volume of sample and reagent, low cost and it being easy to operate. Hence, flow injection methods can be used as a water quality indicator to monitor parameters such as nitrate in a water sample [38][39][40][41][42][43][44][45][46][47].…”

Section: Flow Injection Analysismentioning

confidence: 99%

“…The flow rate of the sample, carrier and reagent solution in flow injection methods are important, as the reaction time can be controlled and adjusted. Hence, flow rate is said to be a critical parameter for time-consuming reactions [41]. Furthermore, the flow rate can enhance the sensitivity as well as high sample throughput [44].…”

Section: Aizat Azmi Ahmad Amsyar Azman Sallehuddin Ibrahim and Mohmentioning

confidence: 99%

See 1 more Smart Citation

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

Azmi

Azman

Ibrahim

et al. 2017

International Journal on Smart Sensing and Intelligent Systems

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Section: Flow Injection Analysismentioning

confidence: 99%

Section: Aizat Azmi Ahmad Amsyar Azman Sallehuddin Ibrahim and Mohmentioning

confidence: 99%

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

Azmi

Azman

Ibrahim

et al. 2017

International Journal on Smart Sensing and Intelligent Systems

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“…Both NO and N 2 O, which is another product of biological nitrite reduction, are greenhouse gases that also participate in the destruction of the ozone layer.I na ddition to the anthropogenic route, soil bacteria are ap rincipal cause of NO emission. Vanadium species are unconventional for this reaction, and there are only few publications on nitrite reductionb yV III species from an analytical approach; [56,61] none have described this reactionw ith V IV complexes. [30][31][32] Therefore, understanding mechanistic details of nitrite reduction is important in environmentalc hemistry.…”

Section: Introductionmentioning

confidence: 99%

Nitrite Reduction in Aqueous Solution Mediated by Amavadin Homologues: N₂O Formation and Water Oxidation

Dias

Bekhti

Kuznetsov

et al. 2018

Chemistry A European J

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Reactions of two vanadium(IV) complex anions that are homologues of amavadin, [V(HIDPA) ] and [V(HIDA) ] (HIDPA=N-oxyiminodipropionate, HIDA=N-oxyiminodiacetate), with the nitrite ion (NO ) in aqueous solution were investigated by experimental (absorption spectroscopy in the visible range, through measurements of dioxygen formed in solution from water oxidation and identification of nitrogen oxide species of a gaseous atmosphere from nitrite reduction by using an IR analyser) and theoretical methods. Two reactions, mediated by the vanadium complexes, with environmental and biological significance, were observed in this system, namely, reduction of nitrite to N O and oxidation of water to molecular oxygen. The reduction of nitrite, as studied by DFT calculations, occurs through the formation of NO (ΔG =14.3 kcal mol ), which is strongly dependent on pH and slightly endergonic, and is then easily converted into N O, with an overall activation barrier of ΔG =11.8 kcal mol . The later process includes dimerisation of NO assisted by one molecule of the V complex, protonation and oxidation of the formed ONNO ligand by another amavadin molecule or by nitrite, and NO bond cleavage/proton transfer in the ONNOH ligand. The results indicate that amavadin exhibits an unusual nitrite reductase type activity that could be involved in nitrogen metabolism of Amanita muscaria and other fungi containing this vanadium complex.

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“…Although a lot of spectrophotometric [1][2][3][4][5][6][7][8][9] and electrochemical [10][11][12] methods have been reported for the measurement of some inorganic anions, ion chromatography is perhaps the most accepted technique for monitoring inorganic anions in water samples. [13][14][15][16][17] Nevertheless, there is a need to find effective and fast preconcentration techniques for increasing the sensitivity of detection because it is often difficult to detect low level inorganic anions in the presence of a large excess of foreign ions directly by spectrophotometric and conductivity measurements.…”

Section: Introductionmentioning

confidence: 99%

Partition/Ion-Exclusion Chromatographic Ion Stacking for the Analysis of Trace Anions in Water and Salt Samples by Ion Chromatography

et al. 2018

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A new analytical methodology for a simple and efficient on-line preconcentration of trace inorganic anions in water and salt samples prior to ion chromatographic determination is proposed. The preconcentration method is based on partition/ ion-exclusion chromatographic ion stacking (PIEC ion stacking) with a hydrophilic polymer gel column containing a small amount of fixed anionic charges. The developed on-line PIEC ion stacking-ion chromatography method was validated by recovery experiments for the determination of nitrate in tap water in terms of both accuracy and precision, and the results showed the reliability of the method. The method proposed was also successfully applied to the determination of trace impurity nitrite and nitrate in reagent-grade salts of sodium sulfate. A low background level can be achieved since pure water is used as the eluant for the PIEC ion stacking. It is possible to reach sensitive detection at sub-μg L -1 levels by on-line PIEC ion stacking-ion chromatography.

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Automated determination of nitrate plus nitrite in aqueous samples with flow injection analysis using vanadium (III) chloride as reductant

Cited by 60 publications

References 21 publications

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

Nitrite Reduction in Aqueous Solution Mediated by Amavadin Homologues: N₂O Formation and Water Oxidation

Partition/Ion-Exclusion Chromatographic Ion Stacking for the Analysis of Trace Anions in Water and Salt Samples by Ion Chromatography

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Automated determination of nitrate plus nitrite in aqueous samples with flow injection analysis using vanadium (III) chloride as reductant

Cited by 60 publications

References 21 publications

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

Nitrite Reduction in Aqueous Solution Mediated by Amavadin Homologues: N2O Formation and Water Oxidation

Partition/Ion-Exclusion Chromatographic Ion Stacking for the Analysis of Trace Anions in Water and Salt Samples by Ion Chromatography

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Nitrite Reduction in Aqueous Solution Mediated by Amavadin Homologues: N₂O Formation and Water Oxidation