Determination of Eight Mycotoxins in Rice by Dispersive Solid Phase Extraction Coupled with Liquid Chromatography-Tandem Mass Spectrometry
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Determination of Eight Mycotoxins in Rice by Dispersive Solid Phase Extraction Coupled with Liquid Chromatography-Tandem Mass Spectrometry
Vol. 36, Issue 1, Pages: 47-53(2017)
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中国水稻研究所农业部稻米及制品质量监督检验测试中心
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Determination of Eight Mycotoxins in Rice by Dispersive Solid Phase Extraction Coupled with Liquid Chromatography-Tandem Mass Spectrometry. [J]. 36(1):47-53(2017)
DOI:
Determination of Eight Mycotoxins in Rice by Dispersive Solid Phase Extraction Coupled with Liquid Chromatography-Tandem Mass Spectrometry. [J]. 36(1):47-53(2017)DOI:
Determination of Eight Mycotoxins in Rice by Dispersive Solid Phase Extraction Coupled with Liquid Chromatography-Tandem Mass Spectrometry
A rapid method was developed for the determination of HT-2 toxin,T-2 toxin,fumonisin B1,fumonisin B2,zearalenone,ochratoxin A,deoxynivalenol and aflatoxins B1 in rice.Three dispersive solid phase extraction sample preparation methods,including QuEChERS method,EMR-lipid method and DisQuE method,were compared for the determination of 8 mycotoxins in rice.The recoveries of the three extraction methods for the toxins were studied.The method of after-extraction addition was used to evaluate the matrix effects for mycotoxins in rice by liquid chromatography-tandem mass spectrometry(LC-MS/MS).As a result,the QuEChERS method was not suitable for the analysis of fumonisin B1,fumonisin B2 and ochratoxin A.The EMR-lipid methods could not overcome the matrix effects of zearalenone and ochratoxin A in rice.In this study,mycotoxins were extracted by DisQuE method,and analysed by LC-MS/MS under the optimized condition with monitoring 16 pairs of MS/MS transitions of precursor ions(two for each mycotoxin) in one single run.Recoveries at three fortified levels in rice ranged from 70.0% to 124.1% with relative standard deviations of 0.9%-16.9%.The limits of detection(S/N≥3) were in the range of 1.2-60.0 μg/kg.The method was proved to be highly efficient,robust and sensitive,and was suitable for the simultaneous analysis of mycotoxins in rice.
关键词
QuEChERS方法EMR-lipid方法DisQuE方法LC-MS/MS真菌毒素大米
Keywords
QuEChERS methodEMR-lipid methodDisQuE methodliquid chromatography-tandem mass spectrometry(LC-MS/MS)mycotoxinsrice
Simultaneous Determination of 16 Coumarins and Vanillins and Their Derivatives in Rice by QuEChERS-Isotope Internal Standard/Ultra-high Performance Liquid Chromatography-Tandem Mass Spectrometry
Research Progress on Rapid Detection Techniques for Mycotoxins and Their Application in Traditional Chinese Medicine
Progresses in Magnetic Lateral Flow Assay for Rapid Detection of Food Contaminants
Comparison of Sample Digestion Methods for High Precision Cadmium Isotope Analysis
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