| Abstract: | A method is described for the atomic-absorption determination of beryllium in geological materials, that utilizes electrothermal atomization after a separation by solvent extraction. Samples are decomposed with hydrofluoric acid and nitric acid in Teflon-lined pressure decomposition vessels. Beryllium is isolated by its extraction as beryllium acetylacetonate at pH 8 into xylene and back-extraction in 3M hydrochloric acid. The method has been successfully applied to the determination of beryllium in 14 U.S. Geological Survey standard rocks. Four subsamples from four bottles of each standard sample were analysed in random order. The mean beryllium contents (ppm) are: AGV-1, 1.98; PCC-1, 0.024; MAG-1, 2.84; BHVO-1, 0.90; DTS-1, 0.026; SCo-1, 1.74; SDC-1, 2.52; BCR-1, 1.44; GSP-1, 1.22; SGR-1, 0.86; QLO-1, 1.83; RGM-1, 2.21; STM-1, 8.75; G-2, 2.29. An analysis of variance shows that all the samples may be considered homogeneous at F0.95 except AGV-1 and DTS-1 which may be considered homogeneous at F0.99. ?? 1978. |
| Genre: | Article |
| ProdID: | 70012630 |
| Citation Author: | Campbell, E. Y.; Simon, F. O. |
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| Citation End Page: | 255 |
| Citation Issue: | 5 |
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| Citation Language: | English |
| Citation Larger Work Title: | Talanta |
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| Citation Number Of Pages: | 5 |
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| Citation Search Results Text: | Atomic-absorption determination of beryllium in geological materials by use of electrothermal atomization; 1978; Article; Journal; Talanta; Campbell, E. Y.; Simon, F. O. |
| Citation Start Page: | 251 |
| Citation Volume: | 25 |
| Citation Year: | 1978 |
| Type: | citation/reference |
| Text: | Atomic-absorption determination of beryllium in geological materials by use of electrothermal atomization; 1978; Article; Journal; Talanta; Campbell, E. Y.; Simon, F. O. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1978 00:00 -0600 |
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