Spectrophotometric Determination of Iridium After Extraction of the Stannous-Chloro Complex by High Molecular Weight Amine

[摘要] About 20¡­100 ¥ìg iridium have been extracted quantitatively as stannous-chloro Complex from aqueous solution by Alamine-336, a high molecular weight tertiary amine, dissolved in benzene. The extractability was confirmed by radioactive tracer of iridium-192. The spectrophotometric measurements of the extracted species at 322.5 nm indicate the feasibility of this method to be used as an analytical procedure for the determination of micro amount of iridium. An anion model of stannous-chloro complex of iridium has been postulated to account for the extraction mechanism.

[学科分类] 化学（综合）