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Position: Home > Articles > Determination of Melamine Residue in Edible Fungi by Solid Phase Extraction and High Performance Liquid Chromatography FOOD SCIENCE 2010,31 (6) 235-238

固相萃取-高效液相色谱检测法测定食用菌中三聚氰胺残留量

作  者:
王登飞;黄智辉;郑俊超;陈练洪;王瑞龙
单  位:
漳州出入境检验检疫局
关键词:
固相萃取;食用菌;三聚氰胺;残留量
摘  要:
建立食用菌中三聚氰胺的固相萃取-高效液相色谱检测法。样品经三氯乙酸、乙腈提取,离心,混合型固相萃取小柱净化后,过0.45μm滤膜,用配有二极管阵列检测器(PAD)的液相色谱仪检测,外标法定量。同时,以三聚氰胺标准品进行添加回收率测定,结果显示,本方法对三聚氰胺的测定低限为2.0mg/kg,回收率为81.3%~91.7%,测定的相对标准偏差均不大于5.6%。本方法能满足食用菌中三聚氰胺残留量常规检测的需要。
译  名:
Determination of Melamine Residue in Edible Fungi by Solid Phase Extraction and High Performance Liquid Chromatography
作  者:
WANG Deng-fei,HUANG Zhi-hui,ZHENG Jun-chao,CHEN Lian-hong,WANG Rui-long(Zhangzhou Entry-Exit Inspection and Quarantine Bureau,Zhangzhou 363000,China)
关键词:
solid phase extraction;aquatic products;melamine;residue
摘  要:
A novel method based on solid phase extraction followed by high performance liquid chromatography(HPLC) was developed for the analysis of melamine residue in edible fungi.Samples were extracted with a mixed system composed of trichloroacetic acid and acetonitrile(3:1,V/V),cleaned up on mixed-mode SPE column and filtrated through 0.45 μm pore size membrane prior to analysis using a HPLC system equipped with PAD.Melamine was quantified by external standard method.The method exhibited a limit of detection of 2.0 mg/kg and a spike recovery range of 81.3% to 91.7% at three levels,with relative standard deviations(RSDs) of not more than 5.6%.The method proves to be most suitable for the determination of melamine residue in edible fungi.

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