Voltammetric Determination of Aluminium in Haemodialysis Concentrates Using the Adsorption of the Al(III)-1,2-Dihydroxyantraquinone-3-sulphonic Acid Complex in Presence of Calcium
作者:
M.E. Carrera,
V. Rodriguez,
M.I. Toral,
P. Richter,
期刊:
Analytical Letters
(Taylor Available online 1993)
卷期:
Volume 26,
issue 12
页码: 2575-2585
ISSN:0003-2719
年代: 1993
DOI:10.1080/00032719308017975
出版商: Taylor & Francis Group
关键词: Aluminium;Adsorption stripping voltammetry;Sensitization by calcium;Haemodyalisis concentrates.
数据来源: Taylor
摘要:
This paper describes a method for the quantitative determination of aluminium in haemodialysis concentrates, based on the adsorption on a static mercury drop electrode of the Al-1,2 dihydroxyantraquinone-3-sulphonic acid complex. The signal was notably increased in presence of calcium. The electrolysis was carried out at -0.900 V. After 60 sec the aluminium contents were measured by differential pulse voltammetry. In these conditions aluminium can be determined in the range 0.65–38 ng/ml with a detection limit (3[sgrave]) of 0.20 ng/ml. The relative standard deviation was in all instances less than 2.1%.
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