Selective Spectrophotometric Determination of Oxyphenbutazone Using a Chelate Forming Reaction
作者:
Saied Belal,
AfafA. Elkheir,
AbdullaM. Elshanwani,
期刊:
Analytical Letters
(Taylor Available online 1985)
卷期:
Volume 18,
issue 5
页码: 617-628
ISSN:0003-2719
年代: 1985
DOI:10.1080/00032718508066161
出版商: Taylor & Francis Group
关键词: Oxypenbutazone;cobalt chelate and copper chelate spectrophotometry;tandril tablets analysis.
数据来源: Taylor
摘要:
A selective spectrophotometric method for the determination of oxyphenbutazone is described. The method is based on nitrosation reaction and simultaneous formation of copper(II) or cobalt (II) chelate of the nitrosoderivative. The formed chelates are extractable with organic solvents giving yellow solutions whose absorbance are proportional to the concentration of oxyphenbutazone. In addition, the chelate extracts, upon treatment with diethyldithiocarbomate develop an additional indirect method of high selectivity for determining oxyphenbutazone. The developed methods are highly accurate and comparable with an official method.
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