摘要
目的：建立食品中碘化物的测定方法。方法：选择550℃高温破坏有机质,以硫酸锌助灰化,碳酸钾固定碘化物,应用气相色谱电子捕获检测技术,对食品中的碘化物进行测定。结果：方法最低检测质量为0.008 ng,线性范围为1.0～10μg/L,相对标准偏差RSD为3.9%,回收率为80.6%～104%。结论：应用该方法检测的结果准确、可靠,适用于食品中碘化物的测定。
Objective： To establish a testing method for iodide in food.Methods：The organic matters were decomposed under 550℃,to accelerate incineration with Zinc sulfate,and Potassium carbonate as fixer aids for iodide in sample processing.To test the iodide in food by Gas Chromatography with ECD.Results：The lowest detection mass was 0.008 ng for this method.The linear ranges was between 1.0 to 10 μg/L.The RSD was 3.9% and the recovery rate was from 80.6% to 104%.Conclusion：The method is accurate,realiable and can be used to determine the iodide in food.
出处
《中国卫生检验杂志》
CAS
2008年第8期1551-1551,1627,共2页
Chinese Journal of Health Laboratory Technology
关键词
气相色谱
电子捕获检测器
食品
碘化物
Gas chromatography
Electron capture detector
Food
Iodide
