The Application of Ion Exchange to the Determination of Impurities in Aluminum and Aluminum Alloys

HJ Seim

doi:10.1520/STP28594S

SYMPOSIA PAPER Published: 01 January 1987

STP28594S

The Application of Ion Exchange to the Determination of Impurities in Aluminum and Aluminum Alloys

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Methods are described for the determination of low percentages of gallium and lead in aluminum alloys using anion exchange chromatography and atomic absorption spectrophotometry. Limits of quantitation can be lowered by at least an order of magnitude over methods without preconcentration. With minor modifications, the method for gallium can be applied to the determination of trace levels of iron, zinc, and cadmium. The lower limits of measurement using 1-g samples are 0.001% for both gallium and lead. Using larger sample weights, the limits for both elements can be lowered to at least 0.0005%.

Author Information

Seim, HJ

Kaiser Aluminum and Chemical Corporation, Center for Technology, Pleasanton, CA

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Details

Developed by Committee: E03

Pages: 17–30

DOI: 10.1520/STP28594S

ISBN-EB: 978-0-8031-5008-9

ISBN-13: 978-0-8031-0942-1

The Application of Ion Exchange to the Determination of Impurities in Aluminum and Aluminum Alloys

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