Simple Spectrophotometric Determination of Ferrous Iron in Twelve French Geochemical Reference Standards |
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| Authors: | Nathan W BOWER |
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| Institution: | Chemistry Department, Colorado College, Colorado Springs, CO 80903 USA |
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| Abstract: | Iron (II) oxide in silicate rocks can readily be measured after digestion with HF and HCl by reaction with KI and KIO3. The iodine produced during the digestion is trapped in CCl4 and measured at 512 nm spectrophotometrically. Results for ten accepted and two new geochemical reference standards are presented. |
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