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A new catalytic kinetic spectrophotometric method for determination of iron. 1989

D Guo-Zhong, and J Zhi-Liang
Department of Chemistry, Guangxi Normal University, Guilin, People's Republic of China.

The catalytic effect of iron(III) on the oxidation of reduced Rhodamine B with hydrogen peroxide in acetic acid medium has been studied. The reaction is highly accelerated by potassium thiocyanate. A new catalytic kinetic spectrophotometric method for the determination of iron has been developed. Iron(III) can be determined by the fixed time method with a detection limit of 4 x 10(-11) g/ml.

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