Application of a selenium hydride-atomic absorption technique to test for homogeneity of USGS standard rock

L. P. Greenland; E.Y. Campbell

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USGS · 70156432

Application of a selenium hydride-atomic absorption technique to test for homogeneity of USGS standard rock

L. P. Greenland·E.Y. Campbell

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Abstract

After acid decomposition of the sample, selenium hydride was generated by means of sodium borohydride, and the gas was swept through a resistance-heated quartz cell mounted in an atomic absorption spectrometer to determine as little as 5 ng/g selenium in 0.25 g rock sample. One-way analyses of variance of data from nine USGS standard rocks indicated no significant differences in selenium content among bottles of any of these rocks.

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L. P. Greenland, E.Y. Campbell. 1977. Application of a selenium hydride-atomic absorption technique to test for homogeneity of USGS standard rock. https://pubs.usgs.gov/publication/70156432

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