SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF IRON SPECIES IN THE PRESENCE OF FERRIC IRON

Category: ICETI 2017
Author: Feifei Fan, Xiaoyun Guan, Yitong Li, Jian Zhu
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The high concentration of ferric(Fe3+) in sample has interference on the determination of ferrous(Fe2+) concentration by spectrophotometric method which 1, 10-phenanthroline is used to as chromogenic agent. Appropriate concentration of fluorine ion (F-) can complex Fe3+ to eliminate interferences which the F- concentration is 13.3 time greater than that of Fe3+. The temperature and light do not affect the masking action of F-. Low temperature and dark conditions favour the stability of chromophoric complex. This method is suitable for determination iron species in the presence of high concentration of Fe3+ in sample.

Pages 42-44
Year 2017
Issue 2
Volume 1

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