The rapid determination of cadmium, lead, copper and zinc in whole blood by atomic absorption spectrometry with electrothermal atomization. Improvements in precision with a peak-shape monitoring device |
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| Authors: | P Del Castilho R F Herber |
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| Institution: | Coronel Laboratory of Environmental and Occupational Hygiene, Faculty of Medicine, University of Amsterdam, Eerste Constantijn Huygensstraat 20, AmsterdamThe Netherlands |
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| Abstract: | The Varian AA6 atomic absorption instrument with a CRA Model 63 in combination with a peak-shape monitoring system makes it possible to avoid losses of volatile elements during the ashing stage. Lead, cadmium, copper and zinc can be measured with sufficient precision even when only simple sample dilution is applied. Time is saved as laborious extraction procedures and frequent blank firings can be omitted. Zinc is measured above the oven so that 10–20 times lower dilutions with consequent gain in precision are possible. |
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