アンチモン,スズ,セレン,ビスマスの連続水素化物生成-無炎原子吸光分析の基礎的条件の検討

概要

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Flameless atomic absorption spectrometry using an electrically heated quartz cell atomizer has been developed for the determination of antimony, tin, selenium and bismuth in combination with an automated hydride generation system which enable the gaseous hydrides produced by sodium borohydride to be introduced into the atomizer continuously. Some fundamental parameters affecting their production and introduction have been investigated. Of the metal hydrides studied, hydrogen selenide was the most unstable and the most soluble or reactive with water. Therefore, such a direct transfer mode as used in this study is exceedingly preferable especially for selenium to a collection mode. Under the optimum conditions, the detection limits (S/N=2) were 3 ng/ml, 3 ng/ml, 2 ng/ml and 1 ng/ml for antimony, tin, selenium and bismuth respectively and the reproducibilities (RSD's) of the present method based on ten replicate determinations of the elements at the concentrations of 20 times greater than their detection limits were within 1%.
社団法人日本分析化学会の論文
1981-08-05