イオンクロマトグラフィーによる次亜リン酸,亜リン酸及びリン酸イオンの定量

概要

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Hypophosphite, phosphite, and phosphate ions were determined by ion chromatograph equiped conductivity detector. Well separated chromatograms of the each anions were obtained by using a mixture of 0.003 M sodium bicarbonate-0.0024 M sodium carbonate solution (pH 10.3) as eluent. When the detector sensitivity was set at 1 μS/cm and 100 μl sample was injected into the system, (0.05〜0.5) mgP/l of hypophosphite, (0.1〜1.5) mgP/l of phosphite, and (0.2〜3) mgP/l of phosphate were determined. The coefficients of variation of peak hights of hypophosphite, phosphite, and phosphate as 0.5 mgP/l of each ten samples were 1.5 %, 1.4 %, and 4.1 %, respectively. The method was applied to determination of hypophosphite and phosphite in plating solutions.
社団法人日本分析化学会の論文
1983-12-05