Determination of cadmium by ETAAS after electrodeposition on a Pd-coated graphite probe

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Title in English Determination of cadmium by electrothermal atomic absorption spectrometry after electrodeposition on Pd-coated graphite probe
Authors

KONEČNÁ Marie KOMÁREK Josef TRNKOVÁ Libuše

Year of publication 2004
Type Article in Proceedings
Conference 6th European Furnace Symposium and 11th Solid Sampling Colloquium with Atomic Spectrometry. Book of Abstracts.
MU Faculty or unit

Faculty of Science

Citation
Field Analytic chemistry
Keywords atomic absorption spectrometry; electrothermal atomization; electrodeposition; cadmium
Description Determination of cadmium in real samples with complicated matrix by electrothermal atomic absorption spectrometry (ETAAS) is influenced by chemical and spectral interferences. The interferences can be suppressed by applying various procedures. A special technique of separation is the electrochemical preconcentration of the analyte on electrodes. Commercial electrographite ridge probe coated electrochemically with palladium was used as a working electrode and was inserted with the electrodeposited analyte into the atomizer. Potentiostatic electrodeposition of cadmium on the graphite probe electrochemically coated with palladium was applied to the determination of cadmium in sea water and urine.
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