Voltammetry in the analysis of atmospheric pollutants

Nguyen, V. D.; Valenta, P.; Nürnberg, H. W.

doi:10.1016/0048-9697(79)90114-1

Cited by 92 publications

(15 citation statements)

References 24 publications

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“…Dependence of the peak height at À 1.15 V on selenium( þ 4) concentration is given in Figure 8. It points to the selenite level of 1.4 nmol/L in the sample and seems acceptable [32,33] for an area not polluted by roasting of sulfide ores, but in fact this result is an artifact because similar response can be obtained with rhodium( þ 3) solution in perchloric acid in the absence of selenite. Independent measurements with copper( þ 2) [12] confirm such a conclusion.…”

Section: Measurements In Rainwatermentioning

confidence: 87%

The Influence of Rhodium(+3) onVoltammetry of Selenium(+4) in Perchloric Acid

Zelić

2005

Electroanalysis

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In comparison with previously described voltammetric behavior of selenium( þ 4) -rhodium( þ 3) system in sulfuric or hydrochloric acid, results obtained in 0.1 mol/L perchloric acid differ significantly. The difference includes: a) number of signals and conditions under which they appear b) current-concentration plots with nonzero intercepts c) unusual dependence of the peak characteristics on the speed of the applied technique and d) much more pronounced peak height enhancement. In square wave voltammetry the signal at À 0.75 V can be even 230 times higher with rhodium( þ 3) than without it. Most probably the peak at À 1.15 V corresponds to the catalytic reduction of hydrogen ions whereas the signal at À 0.75 V is additionally influenced by some other processes. Results are highly dependent on the form of rhodium( þ 3) in the initial solution and qualitatively similar to those previously obtained with sulfur compounds and dissolved metal catalysts.

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Section: Measurements In Rainwatermentioning

confidence: 87%

The Influence of Rhodium(+3) onVoltammetry of Selenium(+4) in Perchloric Acid

Zelić

2005

Electroanalysis

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“…Under optimum conditions, the ASV method is capable of measuring picogram quantities of a number of heavy metals [47]. Two decades ago, a study was conducted in which ASV was used to monitor cadmium, copper, lead, and zinc in airborne particulate matter; the results compared favorably with those from AA analyses An advantage that ASV offers over AA is the ability to conduct multielement trace analysis.…”

Section: Heavy Metal Analysismentioning

confidence: 99%

Electroanalytical applications in occupational and environmental health

Ashley

1994

Electroanalysis

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Electroana1:Tical chemistry has been used for years in the occupational and environmental health fields. Portable sensors and analytical devices based on electrochemical (EC) methods are commonly used on-site in the workplace. Laboratory EC methods also have been used extensively for the analysis of industrial hygiene and related samples. Recent advances in electroanal>-tical methodolog may lead to new analytical applications in the occupational health arena, both in the laboratory as well as on-site in the xvorkplace. Applications in heavy metals analysis, analysis for inorganic and organic species, and bioanalysis are exemplified. This article provides an overview of the history of EC analysis for industrial hygiene purposes, and also summarizes current and newly developed applications of electroanaljdcal methods in occupational and environmental health.

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“…In the environment, it has a half-life between 7 and 174 days [8] [9] and metabolizes into AMPA, methylamine, ammonia, and carbon dioxide [10]. Extensive and recurrent uses, as well as an inappropriate product application, cause its presence in unwanted areas and glyphosate can be found in soil [11], water [12] [13], crops [14], plants [2], animals [15], and human inhabited areas [16], with a significant toxicological and environmental potential damage [17].…”

Section: Introductionmentioning

confidence: 99%

“…In fact, voltammetric techniques are showing good results in various research areas like pollutants detection in air [13], water [10], and food [29]. In addition, they are starting to be considered as promissory alternatives to the traditional analytical methods in several fields by developing an appropriate selection of metals and coatings.…”

Section: Introductionmentioning

confidence: 99%

Glyphosate detection with ammonium nitrate and humic acids as potential interfering substances by pulsed voltammetry technique

Gil

Laguarda-Miró

Camino

et al. 2013

Talanta

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ElsevierMartínez Gil, P.; Laguarda Miró, N.; Soto Camino, J.; Masot Peris, R. (2013) AbstractPulsed voltammetry has been used to detect and quantify glyphosate on buffered water in presence of ammonium nitrate and humic substances. Glyphosate is the most widely used herbicide active ingredient in the world. It is a non-selective broad spectrum herbicide but some of its health and environmental effects are still being discussed. Nowadays, glyphosate pollution in water is being monitored but quantification techniques are slow and expensive. Glyphosate wastes are often detected in countryside water bodies where organic substances and fertilizers (commonly based on ammonium nitrate) may also be present. glyphosate also forms complexes with humic acids so these compounds have also been taken into consideration. The objective of this research is to study the interference of these common pollutants in glyphosate measurements by pulsed voltammetry. The statistical treatment of the voltammetric data obtained lets us discriminate glyphosate from the other studied compounds and a mathematical model has been built to quantify glyphosate concentrations in a buffer despite the presence of humic substances and ammonium nitrate. In this model, the coefficient of determination (R 2 ) is 0.977 and the RMSEP value is 2.96x10 -5 so the model is considered statistically valid.

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Voltammetry in the analysis of atmospheric pollutants

Cited by 92 publications

References 24 publications

The Influence of Rhodium(+3) onVoltammetry of Selenium(+4) in Perchloric Acid

The Influence of Rhodium(+3) onVoltammetry of Selenium(+4) in Perchloric Acid

Electroanalytical applications in occupational and environmental health

Glyphosate detection with ammonium nitrate and humic acids as potential interfering substances by pulsed voltammetry technique

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