This title appears in the Scientific Report :
2000
Voltammetric determination of heavy metals in microvolumes of rain water
Voltammetric determination of heavy metals in microvolumes of rain water
Analytical methods for the trace determination of heavy metals in microvolumes of real water samples by using shipping voltammetry at microelectrodes and microelectrode arrays were investigated. Voltammetric procedures at gold platinum and glassy carbon microelectrodes including appropriate measurin...
Saved in:
Personal Name(s): | Emons, H. |
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Baade, A. / Schöning, M. J. | |
Contributing Institute: |
Institut für Schicht- und Ionentechnik; ISI Angewandte Physikalische Chemie; ICG-7 Abteilung Sicherheit und Strahlenschutz; S |
Published in: | Electroanalysis, 12 (2000) S. 1171 - 1176 |
Imprint: |
Weinheim
Wiley-VCH-Verl.
2000
|
Physical Description: |
1171 - 1176 |
Document Type: |
Journal Article |
Research Program: |
Umweltprobenbank Halbleiterbauelemente und Analytik |
Series Title: |
Electroanalysis
12 |
Subject (ZB): | |
Publikationsportal JuSER |
Analytical methods for the trace determination of heavy metals in microvolumes of real water samples by using shipping voltammetry at microelectrodes and microelectrode arrays were investigated. Voltammetric procedures at gold platinum and glassy carbon microelectrodes including appropriate measuring cells were developed and validated by the application of electrothermal vaporization-inductively coupled plasma-mass spectrometry (ETV-ICP-MS) as well as stripping voltammetry performed at conventionally sized mercury electrodes. The influence of a piezo actuator on the accumulation efficiency of the analyte at the electrode surface was tested. Detection limits in the low picogram range were achieved with anodic stripping voltammetry and Osteryoung-square-wave or differential pulse detection. The methods were applied to the determination of Pb, Cd, Zn, and Cu in single raindrops and small volumes of rain water. |