還元気化法を用いたリンの誘導結合プラズマ発光分析

概要

論文の詳細を見る
Determination of phosphorus by inductively coupled plasma emission spectroscopy using hydride generation technique. Kazuko MATSUMOTO and Keiichiro FUWA (Department of Chemistry, Faculty of Science, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo) A hydride generation technique for phosphorus has been applied to inductively coupled plasma emission spectroscopy. The generation technique was as follows : phosphate was reduced to calcium phosphide with aluminum powder, followed by the reaction with 2.7 N hydrochloric acid to generate phosphine gas in a graphite furnace atomizer as a recation vessel. Phosphine generation was investigated using Ca_3(SO_4)_2 powder and phosphate solution in the presence of calcium (II). Phosphine gas evolved was introduced into an inductively coupled argon plasma. Phosphorus atomic line 213.6 nm was observed. Almost linear calibration curves were obtained in the concentration range from 20 μg to 200 μg P for Ca_3(SO_4)_2 powder and from 2 μg / min to 200 |μg / ml for 10 μl phosphate solution, respectively. The detection limit was about an order of magnitude higher than that obtained by direct neblization, but the use of a larger furnace as a reaction vessel, which can contain ml levels of the solution, might improve the detection limit. (Received July 31, 1980)
社団法人日本分析化学会の論文
1981-03-05