Use of ascorbic and thioglycollic acids to eliminate interference from iron in the aluminon method for determining aluminium

The use of ascorbic and thioglycollic acids as inhibitors for the interference of iron in the aluminon method of Hsu have been examined. The use of ascorbic acid, as proposed by Jayman and Sivasubramaniam, has been found to change iron interference from positive to negative causing aluminium to be underestimated. However, the addition of 0.2 ml of a 1% V/V solution of thioglycollic acid to solutions containing aluminium in amounts ranging from 10 to 50 μg has been proved to suppress the interference from up to 900 μg of iron.

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Bibliographic Details
Main Authors: Cabrera, Francisco, Madrid, Luis, Arambarri, Pablo de
Format: artículo biblioteca
Language:English
Published: Royal Society of Chemistry (UK) 1981
Online Access:http://hdl.handle.net/10261/60711
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