Determination of Tin by Resin-Suspension Electrothermal Atomic Absorption Spectrometry after Enrichment as the Complex with Ammonium Pyrrolidinedithio

Determination of Tin by Resin-Suspension Electrothermal Atomic Absorption Spectrometry after Enrichment as the Complex with Ammonium Pyrrolidinedithiocarbamate

Masanori TARUKI1), Takeshi WAKUI1), Isoshi NUKATSUKA1) and Kunio OHZEKI1)

1) Department of Materials Science and Technology, Faculty of Science and Technology, Hirosaki University

(Received June 22, 2007) (Accepted October 4, 2007)

A resin-phase extraction method has been optimized for the trace determination of tin(II) by ETAAS. Tin(II) was extracted on a finely divided anion exchange resin as the complex with ammonium pyrrolidinedithiocarbamate (APDC). The resin was collected on a membrane filter and then dispersed in 1.00 ml of 1 mol l-1 nitric acid containing 100 µg of Pd(II) and 60 µg of Ni(II). The resulting resin suspension was subjected to GFAAS. The proposed method was applied to the determination of tin(II) in hydrochloric acid.

Anal. Sci., Vol. 23, p.1435, (2007)