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Simple Spectrophotometric Determination of Ferrous Iron in Twelve French Geochemical Reference Standards
Author(s) -
BOWER Nathan W.
Publication year - 1984
Publication title -
geostandards newsletter
Language(s) - English
Resource type - Journals
eISSN - 1751-908X
pISSN - 0150-5505
DOI - 10.1111/j.1751-908x.1984.tb00414.x
Subject(s) - ferrous , iodine , chemistry , silicate , digestion (alchemy) , iron oxide , oxide , inorganic chemistry , environmental chemistry , mineralogy , chromatography , organic chemistry
Iron (II) oxide in silicate rocks can readily be measured after digestion with HF and HCl by reaction with KI and KIO 3 . The iodine produced during the digestion is trapped in CCl 4 and measured at 512 nm spectrophotometrically. Results for ten accepted and two new geochemical reference standards are presented.