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Flow injection analysis of some oxidants using spectrophotometric detection

By Ibrahim Z. AL-Zamil, Mohamed A. Abdalla and Turki S. AL-Khulaiwi


A spectrophotometric flow-injection method has been devised for the determination of nanomole quantities of some oxidants i.e. iodate, periodate, permanganate and hydrogen peroxide. The method is based on the oxidation of iron(II) to iron(III) and the measurement of the absorbance of the red iron(III)–thiocyanate complex at 485 nm. The optimal oxidation pH and the linearity ranges of the calibration curves have been investigated. The analytical aspects of the method including the statistical evaluation of the results are discussed. The analysis of some authentic samples showed an average percentage recovery of 99%

Topics: Flow injection, Spectrophotometry, Iodate, Periodate, Permanganate, Hydrogen peroxide, Chemistry, QD1-999
Publisher: Elsevier
Year: 2015
DOI identifier: 10.1016/j.arabjc.2011.11.016
OAI identifier: oai:doaj.org/article:9ceefcfe033f45ab8d257d17ed79e297
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