色谱2001，Vol.19Issue(1)：94-96,3.
安培检测-离子色谱法测定乳品中的微量碘
Determination of Micro Amounts of Iodide in Dairy Products by Ion Chromatography with Direct Amperometric Detector
摘要
Abstract
A method was developed for the determination of micro amoun ts ofiodi de in dairy products by ion chromatography with direct amperometric detection.T he eluent used was 0.04 mol/L NaOH.The relative standard deviations of retenti on times and peak heights for 1 mg/L and 2 μg/L iodide solutions were 0.67%,3 .9%(n=8) and 0.97%,1.8%(n=8),respectively. Calibration curves showed good linearity with r=0.999 1(n=8,from 10 μg/L to 160μg/L),an d with r=0.998 6(n=8,from 400 μg/L to 5mg/L).The detection lim it of iodide by this method was 1 μg/L.The method has been used to analyse two kinds of milk powder and a kind of fresh milk. The recoveries were 89.0%,86.0% and 84.1% for infant formula milk powder, mother's milk powder and fresh milk , respectively.关键词
离子色谱法/碘/乳制品/牛奶分类
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柴成文,刘克纳,牟世芬..安培检测-离子色谱法测定乳品中的微量碘[J].色谱,2001,19(1):94-96,3.
