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Thallium contents of 16 USGS standard rocks

Journal of Research of the U.S. Geological Survey
By: , , and 

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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.

Suggested Citation

Simon, F., Campbell, E., Aruscavage, P.J., 1977, Thallium contents of 16 USGS standard rocks: Journal of Research of the U.S. Geological Survey, v. 5, no. 5, p. 579-581.

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
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