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投稿时间：2015-09-01
投稿时间：2015-09-01
中文摘要: 用超纯水作为提取溶剂，对食品中甲酸进行提取，采用离子色谱法进行定量检测。试验中选用 IonPac AS11-HC 阴离子柱分离，电导检测，甲酸根线性范围 0.05 mg/L~1.0 mg/L，线性相关系数为 0．999 3，在不同添加水平下，方法的回收 率为 81.1 %~105.5 %，相对标准偏差为 3.0 %~7.8 %，可满足白酒、果汁及牛奶中甲酸的测定要求。
Abstract:A method was developed for the determination of formic acid in distilled spirit， fruit juice and milk by ion chromatography．The analyte is separated in the anion exchange column IonPac AS11-HC and detected with the conductivity detector．The linear range of the calibration curve for formate was 0.05 mg/L-1.0 mg/L with a correlation coefficient of 0.999 3． At the different addictive levels．The recoveries were in the range of 81.1 %-105.5 % . With the relative standard deviations ranging from 3.0 %-7.8 %. The method was successfully applied to the quantitative determination of formic acid in spirit， fruit juice and milk.
文章编号：201602042 中图分类号： 文献标志码：A
基金项目:
| Author Name | Affiliation |
| ZHANG Hua， MA Xing， WANG Yong-fang | Tianjin Extry-Exit Inspection and Quarantine Bureau， Tianjin 300461，China |
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