Highly Selective Photometric Method for the Determination of Periodate
作者:
Ali A. Ensafi,
S. Zakeri,
期刊:
Analytical Letters
(Taylor Available online 1999)
卷期:
Volume 32,
issue 8
页码: 1643-1652
ISSN:0003-2719
年代: 1999
DOI:10.1080/00032719908542922
出版商: Taylor & Francis Group
关键词: Periodate;Gallocyanine;Photometry;Micro-Determination
数据来源: Taylor
摘要:
A simple and selective photometric procedure was developed for the micro-determination of periodate in aqueous media. The method is based on the reaction of periodate with Gallocyanine at pH = 4.8. The reaction was monitored photometrically by measuring the absorbance of the reaction mixture at 620 nm. The effects of reagent concentration, temperature and influence of other species for the determinations of periodate were investigated. Periodate can be determined in the range of 0.02-2.20 μg/ml, with a relative standard deviation of 1.96% for ten replicate measurements of 0.13 μg/ml periodate. Periodate can be determined in the presence of iodate or iodide.
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