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SPECTROPHOTOMETRIC DETERMINATION OF FERROUS IRON IN EIGHTEEN UNITED STATES GEOCHEMICAL REFERENCE STANDARDS

 

作者: Charles B. Bruce,   Nathan W. Bower,  

 

期刊: Geostandards Newsletter  （WILEY Available online 1987）
卷期: Volume 11, issue 1  

页码: 41-42

 

ISSN:0150-5505

 

年代: 1987

 

DOI:10.1111/j.1751-908X.1987.tb00005.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

Iron (II) oxide in 50 mg samples of silicate rocks, deposits, and soils is measured after digestion with HF and HCl in the presence of ICl. The iodine produced is measured spectrophotometrically. Results are presented for the eighteen available USGS geochemical reference standards including the GXR series.

 

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