Determination of Melamine in Eggs by High Performance Capillary Electrophoresis

文献类型： 外文期刊

第一作者： Tong Jing

作者： Tong Jing;Li Xiao-Wei;Ding Shuang-Yang;Rao Qin-Xiong;Guo Ping;Li Hai-Yan

作者机构：

关键词： High performance capillary electrophoresis;melamine;eggs

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.134； 五年影响因子：0.909 ）

ISSN： 0253-3820

年卷期： 2009 年 37 卷 9 期

页码：

收录情况： SCI

摘要： A high performance capillary electrophoresis (HPCE) has been developed for the determination of melamine residues in eggs. Test sample was extracted by trichloracetic acid, and the extract was further purified by SPE cartridge before it was detected by HPCE. The analyte was completely separated in a fused-silica uncoated capillary column (58.5 cm x 75 mu m i. d.) using 50 mmol/L formic acid-50 mmol/L ammonium formate (pH 2.5) within 6 min. The limit of quantification(LOQs) was 0.25 mg/kg, the average recoveries were in the range of 80.2%-90.6% with the spiked concentration of 0.25-5.0 mg/kg, and the RSD was between 1.7% and 3.4%.

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