Czech J. Food Sci., 2011, 29(6):634-640 | DOI: 10.17221/216/2009-CJFS

Simultaneous determination of chloride, bromide and iodide in foodstuffs by low pressure ion-exchange chromatography with visible light detection

Lingyun Yu^{1, 2}, Xinshen Zhang^{1, 3}, Jing Jin², Shujuan Che¹, Lan Yu¹

¹ Light Industry &

Textile &

Food Engineering, Sichuan University, Chengdu, Sichuan, P.R. China

² Technology Center of Sichuan Entry-Exit Inspection and Quarantine Bureau, Chengdu, P.R. China

³ State Key Laboratory of Hydraulics and the Exploitation and Protection of Mountain Rivers, Sichuan University, Chengdu, Sichuan, P.R. China

An ion-exchange chromatography method with visible light detection was developed for the simultaneous determination of chloride, bromide, and iodide in foodstuffs. They were separated by means of low pressure ion-exchange chromatography using 4.0mM sodium carbonate solution as the eluent and a low pressure ion-exchange chromatography column as the separation column. The detection limits of chloride, bromide and iodide were 0.011 mg/l, 0.002 mg/l, and 0.023 mg/l, respectively. The relative standard deviations (RSDs) of the peak area were smaller than 2.9%. The recoveries were between 98.61% and 105.65%. Unlike the traditional methods, this validated method is inexpensive and stable.

Keywords: LPIEC; spectrophotometry; halide

Published: December 31, 2011  Show citation