Automated Determination of Arsenic, Selenium, Antimony, Bismuth and Tin by Atomic Absorption Utilizing Sodium Borohydride Reduction

Abstract

An automated system for the determination of arsenic, selenium, antimony, bismuth and tin is described. These elements and their compounds are reduced with sodium borohydride to the corresponding hydride. Sensitivity of the automated system is comparable and in most cases better than the manual technique. The automated method was found superior to the manual with respect to reproducibility and ease of operation.