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Citrinin Determination in Red Fermented Rice Products by Optimized Extraction Method Coupled to Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

文献类型： 外文期刊

作者： Ji, Xiaofeng 1 ; Xu, Junfeng 1 ; Wang, Xiaofu 1 ; Qi, Peipei 1 ; Wei, Wei 1 ; Chen, Xiaoyun 1 ; Li, Rui 1 ; Zhou, Yu 2 ;

作者机构： 1.Zhejiang Acad Agr Sci, State Key Lab Breeding Base Zhejiang Sustainable, Hangzhou 310021, Zhejiang, Peoples R China

2.Anhui Agr Univ, Sch Tea & Food Sci Technol, Hefei 230036, Peoples R China

关键词： citrinin;HPLC-FLD;LC-MS;MS;mycotoxin;red fermented rice

期刊名称：JOURNAL OF FOOD SCIENCE （ 影响因子：3.167； 五年影响因子：3.376 ）

ISSN：

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收录情况： SCI

摘要： A rapid and sensitive method was developed and validated for citrinin determination in red fermented rice products by liquid chromatography tandem mass spectrometry (LC-MS/MS) under the selected reaction monitoring mode. Sample preparation was especially focused, and the quantitative methods of LC-MS/MS and high-performance liquid chromatography with fluorescence detection (HPLC-FLD) were compared. In red fermented rice samples, the limit of detection was 1.0 g/kg for LC-MS/MS compared to 250 g/kg for HPLC-FLD, the limit of quantification was 3.0 g/kg for LC-MS/MS compared to 825 g/kg for HPLC-FLD. High correlation coefficient was obtained (R-2 = 0.999) within the linear range (0.1 to 100 g/L) in the MS method. The recoveries ranging from 80.9% to 106.5% were obtained in different spiking concentrations. The average intra- and inter-day accuracy ranged from 75.4% to 103.1%, and the intra- and inter-day precisions were from 3.3% to 7.9%. The developed method was applied to 12 commercial red fermented rice products, and citrinin was found in 10 samples ranging from 0.14 to 44.24 mg/kg. Compared to traditional qualitative and quantitative methods, the newly developed LC-MS/MS method for citrinin determination includes the merits of using a small amount of extraction solvent, simple preparation steps, and high sensitivity.

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