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Published in the series Analyses of Hazardous Substances in Air , Vol. 2 (1993) The article contains sections titled: General principles Equipment, chemicals and solutions Equipment Chemicals Solutions Sampling collection and preparation Cleaning of the equipment Conditioning of the exchange resin Preparation of the adsorption unit Sample collection and storage Sample preparation Operating conditions for atomic absorption spectrometry Atomic absorption spectrometry Pretreatment of the graphite tube Platforming technique Analytical determination and calibration Calculation of the analytical results Reliability of the method Precision Recovery rate Detection limit Sources of error Discussion of the method