Anodic Stripping Voltammetric Characteristics of Carbon Composite Electrodes with Mercuric Precursors

Lee, Taewon; Chung, Koo‐Chun; Park, Jong-Man

doi:10.1002/1521-4109(200206)14:12<833::aid-elan833>3.0.co;2-l

Cited by 8 publications

(1 citation statement)

References 5 publications

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“…The bismuth film electrode is an attractive alternative to the mercury electrode for electrochemical detection of heavy metals due to its low toxicity [4,12]. We have also used a screen-printed mercury film electrode (SPMFE) to access the accuracy of the results obtained with the bismuth film electrode because mercury film electrodes are still considered the electrode of choice for stripping analysis [23] due to their outstanding electrochemical characteristics. For verification of the analysis results, ICP-MS was used.…”

Section: Introductionmentioning

confidence: 97%

Stripping chronopotentiometric measurements of lead(II) and cadmium(II) in soils extracts and wastewaters using a bismuth film screen-printed electrode assembly

Kadara

Tothill

2004

Analytical and Bioanalytical Chemistry

107

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The key to remediative processes is the ability to measure toxic contaminants on-site using simple and cheap sensing devices, which are field-portable and can facilitate more rapid decision-making. A three-electrode configuration system has been fabricated using low-cost screen-printing (thick-film) technology and this coupled with a portable electrochemical instrument has provided a a relatively inexpensive on-site detector for trace levels of toxic metals. The carbon surface of the screen-printed working electrode is used as a substrate for in situ deposition of a metallic film of bismuth, which allows the electrochemical preconcentration of metal ions. Lead and cadmium were simultaneously detected using stripping chronopotentiometry at the bismuth film electrode. Detection limits of 8 and 10 ppb were obtained for cadmium(II) and lead(II), respectively, for a deposition time of 120 s. The developed method was applied to the determination of lead and cadmium in soils extracts and wastewaters obtained from polluted sites. For comparison purposes, a mercury film electrode and ICP-MS were also used for validation.

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Section: Introductionmentioning

confidence: 97%

Stripping chronopotentiometric measurements of lead(II) and cadmium(II) in soils extracts and wastewaters using a bismuth film screen-printed electrode assembly

Kadara

Tothill

2004

Analytical and Bioanalytical Chemistry

107

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Determination of lead and cadmium using a polycyclodextrin-modified carbon paste electrode with anodic stripping voltammetry

Roa‐Morales

Ramı́rez-Silva

Romero-Romo

et al. 2003

Analytical and Bioanalytical Chemistry

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This work reports the use of alpha and beta-cyclodextrin-modified carbon paste electrodes (CPE(alpha-CD) and CPE(beta-CD)) to determine simultaneously Pb(II) and Cd(II) by means of the electrochemical technique known as anodic stripping voltammetry (ASV). Both modified electrodes displayed good resolution of the oxidation peaks of the said metals. Statistic analysis of the results strongly suggests that the CPE(beta-CD )exhibited a better analytical response that the CPE(alpha-CD), while the detection limits obtained for Pb(II) were 6.3 x 10(-7) M for the CPE(alpha-CD) and 7.14 x 10(-7) M for the CPE(beta-CD), whereas for Cd(II) they were 2.51 x 10(-6) M for the CPE(alpha-CD) and 2.03 x 10(-6) M for the CPE(beta-CD).

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Linear sweep anodic stripping voltammetry of heavy metals from nitrogen doped tetrahedral amorphous carbon thin films

Khun

Liu

2009

Electrochimica Acta

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Anodic Stripping Voltammetric Characteristics of Carbon Composite Electrodes with Mercuric Precursors

Cited by 8 publications

References 5 publications

Stripping chronopotentiometric measurements of lead(II) and cadmium(II) in soils extracts and wastewaters using a bismuth film screen-printed electrode assembly

Stripping chronopotentiometric measurements of lead(II) and cadmium(II) in soils extracts and wastewaters using a bismuth film screen-printed electrode assembly

Determination of lead and cadmium using a polycyclodextrin-modified carbon paste electrode with anodic stripping voltammetry

Linear sweep anodic stripping voltammetry of heavy metals from nitrogen doped tetrahedral amorphous carbon thin films

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