8-キノリノール-ジエチルジチオカルバミン酸系を用いる微量アルミニウムの逆相分配高速液体クロマトグラフィー

概要

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Liquid chromatographic separation of 8-quinoli-nolatoaluminum(III) chelate was established by the reversed-phase partition system. In the presence of diethyldithiocarbamate (DDTC) as a masking agent, 8-quinolinolatoaluminum (III) chelate was selectively separated from other metal chelates on a Yanapak ODS column (4 mm × 250mm) using 72 wt % aqueous methanol containing 10^<-2>mol/kg of sodium acetate as a mobile phase at a flow rate of 1 cm^3/min. Metal chelates in the aqueous sample solution were solubilized with nonionic surfactant of Triton X-100 (0.56 wt %). Aluminum ion of (0.1〜2.4) × l0^<-5> moll kg level can be determined with the peak height calibration curve obtained at 370 nm using 0.04 absorbance unit full-scale. At least a 50-fold molar excess of iron did not interfere with the determination. DDTC chelates of cobalt(II), nickel(II), copper(II) and vanadium(V) were base-line resolved under the same chromatographic conditions.
社団法人日本分析化学会の論文
1980-11-05