Analysis of ochratoxin A in pig kidney and rye flour using liquid chromatography tandem mass spectrometry (LC/MS/MS)

被引:28
作者
Jorgensen, K [1 ]
Vahl, M [1 ]
机构
[1] Inst Food Res & Nutr, Danish Vet & Food Adm, DK-2860 Soborg, Denmark
来源
FOOD ADDITIVES AND CONTAMINANTS | 1999年 / 16卷 / 11期
关键词
ochratoxin A; liquid chromatography; tandem mass spectrometry; pig kidney; rye flour;
D O I
10.1080/026520399283731
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A liquid chromatography electrospray tandem mass spectrometric (LC/MS/MS) method is described for analysis and confirmation of ochratoxin A in pig kidney and rye flour using derivatization of ochratoxin A to the methyl ester. Ochratoxin A methyl(d(3))ester is used as internal standard. The method works well, the detection limit is 0.02 mu g/kg and the repeatability (coefficient of variation) is between 6% and 16% in the contamination range 0.5 to 8 mu g/kg.
引用
收藏
页码:451 / 456
页数:6
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