Determination of subnanogram amounts of chromium in different matrices by flameless atomic-absorption spectroscopy.
A carbon rod flameless atomizer is used for the determination of Cr in water, sea-water, sugar, glycine and blood. The reported analytical curves show that the quantitative determination of Cr in these matrices is feasible in the ppM-ppm range. The influence of the most common anionic and cationic interferents is reported.
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Istituto di Chimica Analitica, Universita' di Bari, 173 Via G. Amendola, 70126 Bari, Italy.
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