Issue 3, 1990

In situ removal of contamination from a palladium-magnesium chemical modifier within an electrothermal atomiser for the determination of cadmium in serum

Abstract

For the determination of cadmium in body fluids with electrothermal atomisation atomic absorption spectrometry, a method for the removal of cadmium contamination from a Pd-Mg chemical modifier has been devloped. The modifier was injected on to the platform and the cadmium removed by pre-heating to 1100 °C. After cooling, the sample aliquot was placed on the platform and an atomisation programme for cadmium was applied. The pre-treated Pd-Mg modifier retains the cadmium within the atomiser up to 800 °C. Air ashing was used to prevent the accumulation of carbonaceous residues, and the advantage of cooling to 20 °C prior to atomisation was demonstrated.

Article information

Article type
Paper

J. Anal. At. Spectrom., 1990,5, 203-204

In situ removal of contamination from a palladium-magnesium chemical modifier within an electrothermal atomiser for the determination of cadmium in serum

E. Bulska, Z. Grobenski and G. Schlemmer, J. Anal. At. Spectrom., 1990, 5, 203 DOI: 10.1039/JA9900500203

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