ビスムチオール-IIスルホン酸担持イオン交換樹脂を充てんした微量フローカラムを用いるセレンの予備濃縮(<特集>超微量分析のための前処理と予備濃縮)

概要

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A preconcentration method using a micro column packed with anion-exchange resin loaded with Bis-muthiol-II sulfonic acid (Bis-IIS) has been developed for the determination of trace level of Se. Selenium (IV) in 0.5 M HCl solution was collected on the column, based on the formation of selenotrisulfide (-S-Se-S-) linkage with Bis-IIS. Selenium (IV) collected on the resin was eluted with penicillamine solution as penicillamine selenotrisulfide (PenSTS). PenSTS was converted to 7-nitrobenzo-2, 1, 3-oxadiazole (NBD) derivative, and Se was determined as NBD-PenSTS by HPLC with fluorometric detection. The use of a micro column was effective in the preconcentration of Se of small scale procedure to shorten the time required for the analysis.
1987-11-05