Determination of arsenic and lead in catalysts by atomic absorption spectrometry with electrothermal atomisation

Abstract

An automated method has been developed to determine arsenic and lead in pre-treater, reforming and other catalysts using microwave digestion and atomic absorption spectrometry with electrothermal atomisation. The proposed method is precise and accurate with a practical lower limit of determination in the catalyst of 10 mg kg^–1 for arsenic and 5 mg kg^–1 for lead.