Spectrofluorimetric Determination of Germanium Traces Using 1,2,4-Trihydroxyantraquinone
作者:
R. Matíes,
J.J. Arias,
F. Jiménez,
M. Román,
期刊:
Analytical Letters
(Taylor Available online 1997)
卷期:
Volume 30,
issue 3
页码: 633-644
ISSN:0003-2719
年代: 1997
DOI:10.1080/00032719708001807
出版商: Taylor & Francis Group
关键词: Germanium determination;Spectrofluorimetry;1,2,4-Trihydroxy-anthraquinone;Industrial alloys.
数据来源: Taylor
摘要:
A new spectrofluorimetric method for determination of germanium traces based on its reaction with 1,2,4-Trihydroxyantraquinone, at an apparent pH 8.8 provided by an ammonia/ammonium chloride buffer, in a 80:20(v/v) ethyleneglycol water medium is proposed. The calibration graph is linear over the range 70–725 ng/ml and features a detection limit of 2.5 ng/ml. The effect of potential major interferences has been investigated and the proposed method was successfully applied to the determination of germanium in synthetic samples and industrial concentrates, after extraction with CCl4, in an 9 M HCl medium.
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