Flameless atomic absorption determination of bismuth in soils and rocks
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Abstract
Recent advances in flameless atomic absorption allow determinations of bismuth in concentrations as small as 50 ppb in 0.2 g of rock or soil sample. The sample is fused with sodium bisulfate and the fusion product is leached with hot 2 M hydrochloric acid and treated with ammonium citrate, (ethylenedinitrilo) tetraacetic acid disodium salt, and finally with ammonium 1-pyrrolidinedithiocarbamate to form a complex which is extracted into methyl isobutyl ketone. Aliquots of the latter are pipetted into a graphite furnace and then subjected to an established and automated program of drying, charring, and atomizing. Recorded peak heights provide a measure of the amount of bismuth present.
Suggested Citation
Ficklin, W.H., Ward, F.N., 1976, Flameless atomic absorption determination of bismuth in soils and rocks: Journal of Research of the U.S. Geological Survey, v. 4, no. 2, p. 217-220.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Flameless atomic absorption determination of bismuth in soils and rocks |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 4 |
| Issue | 2 |
| Year Published | 1976 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 4 p. |
| First page | 217 |
| Last page | 220 |