Abstract
The attractive performance of graphite-epoxy composite electrodes (GECE) surface-modified with a bismuth film (Bi-GECE) for simultaneous and separate stripping determination of trace amounts of heavy metals (lead, cadmium and zinc) is described. Several key parameters have been optimized. Bi-GECEi electrode shows superior accumulation properties when compared to bare GECE or even to Hg-GECE. Bi-GECE exhibits well-defined, undistorted, reproducible and sharp stripping signals with RSD of 2.99%, 1.56% and 2.19% for lead, cadmium and zinc respectively. Detection limits of 23.1, 2.2 and 600 μg/L for lead, cadmium and zinc were obtained. Sharp peaks with high resolution (of neighboring signals) that permit convenient multi-elemental measurements resulted. The applicability of the electrodes to the real samples (tap water and soil sample) was also tested and promising results with good recoveries were obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 881-886 |
| Number of pages | 6 |
| Journal | Electroanalysis |
| Volume | 17 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2005 May 1 |
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All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Electrochemistry
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Stripping voltammetry with bismuth modified graphite-epoxy composite electrodes. / Kirgöz, Ülkü Anik; Marín, Sergi; Pumera, Martin; Merkoçi, Arben; Alegret, Salvador.
In: Electroanalysis, Vol. 17, No. 10, 01.05.2005, p. 881-886.Research output: Contribution to journal › Article
TY - JOUR
T1 - Stripping voltammetry with bismuth modified graphite-epoxy composite electrodes
AU - Kirgöz, Ülkü Anik
AU - Marín, Sergi
AU - Pumera, Martin
AU - Merkoçi, Arben
AU - Alegret, Salvador
PY - 2005/5/1
Y1 - 2005/5/1
N2 - The attractive performance of graphite-epoxy composite electrodes (GECE) surface-modified with a bismuth film (Bi-GECE) for simultaneous and separate stripping determination of trace amounts of heavy metals (lead, cadmium and zinc) is described. Several key parameters have been optimized. Bi-GECEi electrode shows superior accumulation properties when compared to bare GECE or even to Hg-GECE. Bi-GECE exhibits well-defined, undistorted, reproducible and sharp stripping signals with RSD of 2.99%, 1.56% and 2.19% for lead, cadmium and zinc respectively. Detection limits of 23.1, 2.2 and 600 μg/L for lead, cadmium and zinc were obtained. Sharp peaks with high resolution (of neighboring signals) that permit convenient multi-elemental measurements resulted. The applicability of the electrodes to the real samples (tap water and soil sample) was also tested and promising results with good recoveries were obtained.
AB - The attractive performance of graphite-epoxy composite electrodes (GECE) surface-modified with a bismuth film (Bi-GECE) for simultaneous and separate stripping determination of trace amounts of heavy metals (lead, cadmium and zinc) is described. Several key parameters have been optimized. Bi-GECEi electrode shows superior accumulation properties when compared to bare GECE or even to Hg-GECE. Bi-GECE exhibits well-defined, undistorted, reproducible and sharp stripping signals with RSD of 2.99%, 1.56% and 2.19% for lead, cadmium and zinc respectively. Detection limits of 23.1, 2.2 and 600 μg/L for lead, cadmium and zinc were obtained. Sharp peaks with high resolution (of neighboring signals) that permit convenient multi-elemental measurements resulted. The applicability of the electrodes to the real samples (tap water and soil sample) was also tested and promising results with good recoveries were obtained.
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U2 - 10.1002/elan.200403167
DO - 10.1002/elan.200403167
M3 - Article
AN - SCOPUS:20444448587
VL - 17
SP - 881
EP - 886
JO - Electroanalysis
JF - Electroanalysis
SN - 1040-0397
IS - 10
ER -