文献类型：期刊文献

中文题名：顶空气相色谱法测定三氯蔗糖中有机溶剂残留量

英文题名：DETERMINATION OF RESIDUAL ORGANIC SOLVENTS IN TRICHLOROSUCROSE BY HEADSPACE GAS CHROMATOGRAPHY

作者：胡慧廉[1];丁乃立[1];吴莲珍[1]

机构：[1]华东理工大学分析测试中心,上海200237

年份：2007

卷号：28

期号：11

起止页码：127

中文期刊名：食品研究与开发

外文期刊名：Food Research and Development

收录：CSTPCD;;北大核心:【北大核心2004】；

语种：中文

中文关键词：顶空气相色谱法;三氯蔗糖;残留有机溶剂

外文关键词：headspace gas chromatography; trichlorosucrose; residual organic solvents

摘要：建立了三氯蔗糖中有机溶剂残留量的顶空气相色谱分析方法。采用大口径HP-快速GC残留溶剂柱为分离柱,FID为检测器,外标法进行定量。并对顶空平衡温度、平衡时间对残留有机溶剂测定的影响进行了分析研究。结果表明:甲醇在1.58mg/L～158.30mg/L乙醇在7.98mg/L～798.00mg/L内有良好的线性关系,相关系数分别为0.9997、0.9996;方法精密度试验RSD(n=6)分别为2.14%、1.83%;加标平均回收率(n=5)甲醇为99.72%、RSD=2.05%,乙醇为97.21%、RSD=2.51%;最低检测限分别为0.3mg/L、0.08mg/L。本方法快速、灵敏、准确、无污染。
A method for the determination of residual organic solvents in trichlorosucrose by headspace gas chromatography has been developed. A wide bore HP-fast GC residual solvent column was performed with FID as detector. The external standard method was used for quantitative analysis. The effects of the equilibrium temperature and equilibrium time on the determination of residual organic solvents were studied. The results show that the standard curves were linear in the range of 1.58 mg/L-158.30 mg/L （r=0.999 7） for methanol and 7.98 mg/L- 798.00 mg/L （r=0.999 6）for ethanol. The relative standard deviations （n=6） of precision were 2.14 % and 1.83 % respectively. The average recovery rates （n=5） of methanol and ethanol were 99.72 %（RSD=2.05 % ）and 97.21% （RSD=2.51% ）respectively. The minimum detectable concentration was 0.3 mg/L for methanol and 0.08 mg/L for ethanol. It is a rapid, sensitive, accurate and uncontaminated method.