Thallium contents of 16 USGS standard rocks
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Abstract
Thallium was determined in 16 USGS standard rocks by atomic absorption spectroscopy in which a heated graphite atomizer was used after extraction as thallium iodide into amyl acetate. Four subsamples from four bottles of each standard sample, except G-1 and W-1, were analyzed in random order, and the average thallium contents in parts per million (as Tl) were AGV-1, 0.41; GSP-1, 1.63; G-2, 1.08; BCR-1, 0.35; SDC-1, 0.80; MAG-1, 0.79; BHVO-1, 0.049; SCO-1, 0.79; SGR-1, 0.34; QLO-1, 0.23; RGM-1, 1.07 ; STM-1, 0.30; DTS-1, <0.005; and PCC-1, <0.005. The analysis of variance showed that all samples may be considered homogeneous at F0.975 and only GSP-1 may be considered heterogeneous at F0.95. The Tl contents of G-1 and W-1 are 1.0 and 0.12 ppm, respectively.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Thallium contents of 16 USGS standard rocks |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 5 |
| Issue | 5 |
| Year Published | 1977 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Description | 3 p. |
| First page | 579 |
| Last page | 581 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |