金属水素化物発生法を用いる高周波プラズマトーチ発光分光分析法

概要

論文の詳細を見る
The UHF-plasma torch emission spectrometry by use of introduction of generated metal hydride was studied on several metal species. Defined aliquots of sample solution acidified to (1.0〜1.5)M with hydrochloric acid were injected in a generator bottle containing 20 ml of (2〜6)% sodium borohydride solution as a reductant and then hydride was introduced to the torch by argon carrier gas. The detection limits in μg were; arsenous 0.01 (228.8 nm), arsenic 0.05 (228.8 mn), antimony(III) 0.025 (259.8 nm), bismuth(III) 1 (298.8 nm),germanium(IV) 0.05 (303.9 nm), lead 10 (405.8 nm), selenium(IV) 2 (204.0 nm), tellurium(IV) 2 (214.3 nm), and tin (II,IV) 0.1 (270.7 nm). The calibration curves were linear and passed through the origin in the range of arsenous {(0.01〜8)μg}, antimony {(0.025〜0.7)μg}, bismuth {(1.0〜15) μg}, germanium {(0.2〜1.5)μg}, and tin(II, IV){(0.1〜3)μg} when 2% sodium borohydride was used, and arsenic {(0.1〜7)μg} when 6% sodium borohydride was used. In applications to analysis of steels for arsenic and tin and of molybdenum for tin without prior separation, 6% sodium borohydride was used. The analytical data for steels were satisfactorily accorded with the referred values.
社団法人日本分析化学会の論文
1976-12-10