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Application of a liquid chromatography-tandem mass spectrometric method to multi-mycotoxin determination in raw cereals and evaluation of matrix effects

被引：84
作者：
Sulyok, Michael [1 ]
Krska, Rudolf [1 ]
Schuhmacher, Rainer [1 ]
机构：
[1] Univ Bodenkultur Wien, Dept IFA Tulln, Christian Doppler Lab Mycotoxin Res, A-3430 Tulln, Austria
来源：
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT | 2007年 / 24卷 / 10期
关键词：
Mycotoxins; multi-target analysis; liquid chromatography; tandem mass spectrometry; matrix effects; 12; TYPE-A; FUSARIUM MYCOTOXINS; B TRICHOTHECENES; INTERNAL STANDARD; OCHRATOXIN-A; LC-MS/MS; DEOXYNIVALENOL; FOOD; ZEARALENONE; METABOLITES;
D O I：
10.1080/02652030701510004
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A multi-analyte method for the liquid chromatography-tandem mass spectrometric determination of mycotoxins in crude grain extracts without clean-up has been applied to the analysis of spelt, rice and barley. Method performance characteristics were determined after spiking blank samples at multiple levels and were found to be comparable for all investigated matrices as regards linearity (linear calibration functions were obtained for all analyte/matrix combinations except for moniliformin), precision (coefficient of variations < 6%) and sensitivity. Matrix- induced signal suppression/enhancement was studied in detail and varied significantly between the investigated matrices, as well as between individual samples (relative standard deviation was as high as 40% within three rice varieties) and individual toxins. It was concluded that a reliable quantitative analysis using matrix-matched calibration requires careful consideration of the model matrix, which should match the investigated samples as close as possible.
引用
收藏
页码：1184 / 1195
页数：12
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