{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T11:58:44Z","timestamp":1774353524363,"version":"3.50.1"},"reference-count":51,"publisher":"Wiley","license":[{"start":{"date-parts":[[2020,5,14]],"date-time":"2020-05-14T00:00:00Z","timestamp":1589414400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Environmental and Public Health"],"published-print":{"date-parts":[[2020,5,14]]},"abstract":"<jats:p>Development of adsorptive stripping voltammetry (AdSV) combined with<jats:italic>in situ<\/jats:italic>prepared bismuth film electrode (<jats:italic>in situ<\/jats:italic>BiFE) on glassy carbon disk surface using diethylenetriamine pentaacetic acid (DTPA) as a complexing agent and<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:msubsup><mml:mrow><mml:mtext>NO<\/mml:mtext><\/mml:mrow><mml:mn>3<\/mml:mn><mml:mo>\u2212<\/mml:mo><\/mml:msubsup><\/mml:math>as a catalyst to determine the trace amount of chromium (VI) is demonstrated. According to this method, in the preconcentration step at<jats:italic>E<\/jats:italic><jats:sub>dep<\/jats:sub>\u2009=\u2009\u2212800\u2009mV, the bismuth film is coated on the surface of glassy carbon electrodes simultaneously with the adsorption of complexes Cr(III)-DTPA. In addition to the influencing factors, the stripping voltammetry performance factors such as deposition potential, deposition time, equilibration time, cleaning potential, cleaning time, and technical parameters of differential pulse and square wave voltammetries have been investigated, and the influence of Cr(III), Co(II), Ni(II), Ca(II), Fe(III),<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:msubsup><mml:mrow><mml:mtext>SO<\/mml:mtext><\/mml:mrow><mml:mn>4<\/mml:mn><mml:mrow><mml:mn>2<\/mml:mn><mml:mo>\u2212<\/mml:mo><\/mml:mrow><\/mml:msubsup><\/mml:math>, Cl<jats:sup>\u2212<\/jats:sup>, and Triton X has also been investigated. This method gained good repeatability with RSD &lt;4% (<jats:italic>n<\/jats:italic>\u2009=\u20099) for the differential pulse adsorptive stripping voltammetry (DP-AdSV) and RSD\u2009&lt;\u20093% (<jats:italic>n<\/jats:italic>\u2009=\u20097) for the square wave adsorptive stripping voltammetry (SqW-AdSV), and low limit of detection: LOD\u2009=\u200912.10<jats:sup>\u22129<\/jats:sup>\u2009M\u2009\u2248\u20090.6\u2009ppb (at a deposition potential (<jats:italic>E<\/jats:italic><jats:sub>dep<\/jats:sub>) of \u2212800\u2009mV and the deposition time (<jats:italic>t<\/jats:italic><jats:sub>dep<\/jats:sub>) of 50\u2009s) and LOD\u2009=\u20092.10<jats:sup>\u22129<\/jats:sup>\u2009M\u2009\u2248\u20090.1\u2009ppb (at<jats:italic>E<\/jats:italic><jats:sub>dep<\/jats:sub>\u2009=\u2009\u2212800\u2009mV and<jats:italic>t<\/jats:italic><jats:sub>dep<\/jats:sub>\u2009=\u2009160\u2009s) for the DP-AdSV and SqW-AdSV, respectively. This method has been successfully applied to analyze chromium in natural water.<\/jats:p>","DOI":"10.1155\/2020\/1347836","type":"journal-article","created":{"date-parts":[[2020,5,14]],"date-time":"2020-05-14T23:36:40Z","timestamp":1589499400000},"page":"1-15","source":"Crossref","is-referenced-by-count":9,"title":["Determination of Chromium in Natural Water by Adsorptive Stripping Voltammetry Using<i>In Situ<\/i>Bismuth Film Electrode"],"prefix":"10.1155","volume":"2020","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1322-7864","authenticated-orcid":true,"given":"Nguyen","family":"Th\u1ecb Hue","sequence":"first","affiliation":[{"name":"University of Sciences, Hue University, Hue 530000, Vietnam"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nguyen","family":"Van Hop","sequence":"additional","affiliation":[{"name":"University of Sciences, Hue University, Hue 530000, 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