乳业科学与技术2025，Vol.48Issue(2)：15-19,5.DOI:10.7506/rykxyjs1671-5187-20240930-090
气相色谱法测定液态乳中碘含量的方法优化
Optimized Gas Chromatographic Method for the Determination of Iodine Content in Liquid Milk
梁琳1
作者信息
- 1. 上海市质量监督检验技术研究院,上海 200233
- 折叠
摘要
Abstract
The iodine content in liquid milk was determined via gas chromatography(GC).Through systematic screening and optimization of derivatizing reagents and derivatization time,higher measured values of the iodine content in liquid milk were obtained while solving the problem of poor repeatability of the traditional method.The optimized method was more efficient than the national standard method National food safety standard-determination of iodine in food(GB 5009.267-2020).The optimal pretreatment conditions were determined to be 1.0 mL of sulfuric acid,2.0 mL of butanone,0.5 mL of 3.5%(V/V)hydrogen peroxide,and derivatization reaction for 30 min.This study provides a reliable basis for this optimized scheme to achieve efficient and accurate detection of iodine in liquid milk and holds significant application value in the control of the iodine content in liquid milk.关键词
气相色谱法/液态乳/碘/测定方法优化Key words
gas chromatography/liquid milk/iodine/analytical method optimization分类
轻工纺织引用本文复制引用
梁琳..气相色谱法测定液态乳中碘含量的方法优化[J].乳业科学与技术,2025,48(2):15-19,5.
