Determination of heavy metals by electrothermal atomic absorption spectrometry after electrodeposition on a graphite probe

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Authors

KOMÁREK Josef HOLÝ Jiří

Year of publication 1999
Type Article in Periodical
Magazine / Source Spectrochimica Acta Part B: Atomic Spectroscopy
MU Faculty or unit

Faculty of Science

Citation
Field Analytic chemistry
Keywords Electrothermal atomic absorption spectrometry; Electrodeposition; Graphite probe; Heavy metal
Description Traces of heavy metals were separated and preconcentrated electrochemically at a controlled potential on the graphite ridge probe. After the electrolysis, the electrode-probe was inserted in the graphite furnace for atomization of metal deposit by an automatic system. Conditions for the electrodeposition, such as pH of solutions, the deposition potential and concentration of electrolyte, were optimized. This method was applied for the determination of copper, cadmium, lead, nickel and of chromium species in seawater.
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