| Abstract: | The sample is fused with lithium metaborate and the melt is dissolved in 15% (v/v) hydrobromic acid. Iron(III) is reduced with ascorbic acid to avoid its coextraction with indium as the bromide into methyl isobutyl ketone. Impregnation of the graphite furnace with sodium tungstate, and the presence of lithium metaborate and ascorbic acid in the reaction medium improve the sensitivity and precision. The limits of determination are 0.025-16 mg kg-1 indium in the sample. For 22 geological reference samples containing more than 0.1 mg kg-1 indium, relative standard deviations ranged from 3.0 to 8.5% (average 5.7%). Recoveries of indium added to various samples ranged from 96.7 to 105.6% (average 100.2%). ?? 1984. |
| Genre: | Article |
| ProdID: | 70012668 |
| Citation Author: | Zhou, L.; Chao, T. T.; Meier, A. L. |
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| Citation End Page: | 373 |
| Citation Issue: | C |
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| Citation Language: | English |
| Citation Larger Work Title: | Analytica Chimica Acta |
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| Citation Number Of Pages: | 5 |
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| Citation Search Results Text: | Determination of indium in geological materials by electrothermal-atomization atomic absorption spectrometry with a tungsten-impregnated graphite furance; 1984; Article; Journal; Analytica Chimica Acta; Zhou, L.; Chao, T. T.; Meier, A. L. |
| Citation Start Page: | 369 |
| Citation Volume: | 161 |
| Citation Year: | 1984 |
| Type: | citation/reference |
| Text: | Determination of indium in geological materials by electrothermal-atomization atomic absorption spectrometry with a tungsten-impregnated graphite furance; 1984; Article; Journal; Analytica Chimica Acta; Zhou, L.; Chao, T. T.; Meier, A. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1984 00:00 -0600 |
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