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Determination of Chromium in Natural Water by Adsorptive Stripping Voltammetry Using In Situ Bismuth Film Electrode
Joint Authors
Hai Phong, Nguyen
Long, Hoang Thai
Thi Hue, Nguyen
Van Hop, Nguyen
Uyen, Tran Ha
Quoc Hung, Le
Nhi Phuong, Nguyen
Source
Journal of Environmental and Public Health
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-14
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Development of adsorptive stripping voltammetry (AdSV) combined with in situ prepared bismuth film electrode (in situ BiFE) on glassy carbon disk surface using diethylenetriamine pentaacetic acid (DTPA) as a complexing agent and NO3− as a catalyst to determine the trace amount of chromium (VI) is demonstrated.
According to this method, in the preconcentration step at Edep = −800 mV, 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), SO42−, Cl−, and Triton X has also been investigated.
This method gained good repeatability with RSD <4% (n = 9) for the differential pulse adsorptive stripping voltammetry (DP-AdSV) and RSD < 3% (n = 7) for the square wave adsorptive stripping voltammetry (SqW-AdSV), and low limit of detection: LOD = 12.10−9 M ≈ 0.6 ppb (at a deposition potential (Edep) of −800 mV and the deposition time (tdep) of 50 s) and LOD = 2.10−9 M ≈ 0.1 ppb (at Edep = −800 mV and tdep = 160 s) for the DP-AdSV and SqW-AdSV, respectively.
This method has been successfully applied to analyze chromium in natural water.
American Psychological Association (APA)
Thi Hue, Nguyen& Van Hop, Nguyen& Long, Hoang Thai& Hai Phong, Nguyen& Uyen, Tran Ha& Quoc Hung, Le…[et al.]. 2020. Determination of Chromium in Natural Water by Adsorptive Stripping Voltammetry Using In Situ Bismuth Film Electrode. Journal of Environmental and Public Health،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1184179
Modern Language Association (MLA)
Thi Hue, Nguyen…[et al.]. Determination of Chromium in Natural Water by Adsorptive Stripping Voltammetry Using In Situ Bismuth Film Electrode. Journal of Environmental and Public Health No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1184179
American Medical Association (AMA)
Thi Hue, Nguyen& Van Hop, Nguyen& Long, Hoang Thai& Hai Phong, Nguyen& Uyen, Tran Ha& Quoc Hung, Le…[et al.]. Determination of Chromium in Natural Water by Adsorptive Stripping Voltammetry Using In Situ Bismuth Film Electrode. Journal of Environmental and Public Health. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1184179
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1184179