SEMIAUTOMATED METHOD FOR THE DETERMINATION OF BISMUTH IN ROCKS

被引：12

作者：

CHAN, CY

BAIG, MWA

PITTS, AE

机构：

[1] Geoscience Laboratories, Ontario Geological Survey, Ministry of Natural Resources, 77 Grenville Street, Toronto

来源：

ANALYTICA CHIMICA ACTA | 1979年 / 111卷 / 01期

关键词：

D O I：

10.1016/S0003-2670(01)93259-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A rapid and accurate method for the determination of bismuth in rock samples is described. Automated equipment is used to generate bismuth hydride from solutions of rock samples prepared by digestion with a mixture of hydrofluoric and perchloric acids. The evolved hydride is carried to a heated quartz tube by a stream of argon, and the atomic absorption of bismuth recorded. Thiosemicarbazide and 1,10-phenanthroline are used as masking agents to minimize interferences from copper and nickel. As little as 20 ng Bi g-1 can be determined; the average r.s.d. is 5.4%. Results obtained for six USGS standard rocks are in close agreement with the recommended values obtained by an isotope dilution technique. © 1979.

引用

页码：169 / 176

页数：8

共 12 条

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CHAN, CY ;

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[3]

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[6] DETERMINATION OF NANOGRAM AMOUNTS OF BISMUTH IN ROCKS BY ATOMIC-ABSORPTION SPECTROMETRY WITH ELECTRO-THERMAL ATOMIZATION [J].

KANE, JS .

ANALYTICA CHIMICA ACTA, 1979, 106 (02) :325-331

[7] APPLICATION OF MASKING AGENTS IN MINIMIZING INTERFERENCES FROM SOME METAL-IONS IN DETERMINATION OF ARSENIC BY ATOMIC-ABSORPTION SPECTROMETRY WITH HYDRIDE GENERATION TECHNIQUE [J].

KIRKBRIGHT, GF ;

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ANALYTICA CHIMICA ACTA, 1978, 100 (SEP) :145-150

[8]

PERRIN DD, 1970, MASKING DEMASKING CH, P35

[9]

SANDELL EB, 1959, COLORIMETRIC DETERMI, V3, P338

[10] INTERFERENCES IN DETERMINATION OF ELEMENTS THAT FORM VOLATILE HYDRIDES WITH SODIUM-BOROHYDRIDE USING ATOMIC-ABSORPTION SPECTROPHOTOMETRY AND ARGON-HYDROGEN FLAME [J].

SMITH, AE .

ANALYST, 1975, 100 (1190) :300-306

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