Sub Microgram Determination of Arsenic, Selenium, Antimony and Bismuth By Atomic Absorption Utilizing Sodium Borohydride Reduction

Abstract

A rapid and sensitive method for the determination of arsenic, selenium, antimony and bismuth is described. These elements and their compounds are reduced to the corresponding hydride with sodium borohydride. The gaseous hydride is generated and collected by means of a generator fitted with a collapsible reservoir. The collected gases are subsequently introduced into an argon supported hydrogen flame and determined utilizing atomic absorption.