Accurate Determination of Gallium in South African Primary and Secondary Reference Samples by Ion Exchange Chromatography and Atomic Absorption Spectrometry
作者:
T.N. VAN DER WALT,
F.W.E. STRELOW,
期刊:
Geostandards Newsletter
(WILEY Available online 1984)
卷期:
Volume 8,
issue 2
页码: 163-167
ISSN:0150-5505
年代: 1984
DOI:10.1111/j.1751-908X.1984.tb00423.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Results are presented for gallium in six South African primary rock standards (NIMROCS) and in twelve secondary rock standards (SAROCS). A selective ion exchange procedure is used to separate gallium completely from all other elements, except remaining traces of thorium. It is followed by a determination of gallium with flame atomic absorption spectrometry using the nitrous oxide‐acetylene flame, after the addition of 2000 ppm lanthanum as ionization suppresso
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