Simultaneous determination of 11 mycotoxins in feeds by high performance liquid chromatography-tandem mass spectrometry

doi:10.3724/SP.J.1123.2017.03042

Abstract

Abstract:

A high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was developed for the simultaneous determination of 11 mycotoxins in feeds. The samples were extracted with acetonitrile, then cleaned up by multifunctional purification column filler and PRIME HLB solid phase extraction column. The 11 mycotoxins were separated on an Agilent Zorbax SB-C18 column (150 mm×2.1 mm, 3.5 μ m) with gradient elution program, and methanol-5 mmol/L ammonium acetate solution containing 0.1%(v/v) formic acid were used as mobile phases. The target compounds were detected under electrospray ionization (ESI) both in positive and negative modes with multiple reaction monitoring mode, and quantified by internal standard method. The results indicated that the 11 mycotoxins showed good linear relationships in their respective linear ranges, and the correlation coefficients were greater than 0.99. The limits of quantification (LOQs) were between 2.0 and 50.0 μ g/kg. The average recoveries were between 79.3% and 101.6% at three spiked levels (1, 2 and 5 times LOQs) with relative standard deviations (RSDs) of 5.9%-13.2% (n=5). The method is simple, rapid, sensitive, and can be used for the analysis of the 11 mycotoxins in feeds.

Key words: feeds, high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS), multifunctional purification column filler, mycotoxins, solid phase extraction (SPE)

CLC Number:

O658

WEI Yunji, FENG Min, ZHU Zhenyi, HE Jian, SHEN Jinrong, HE Zhenghe, QIN Xian, ZHOU Liying. Simultaneous determination of 11 mycotoxins in feeds by high performance liquid chromatography-tandem mass spectrometry[J]. Chinese Journal of Chromatography, 2017, 35(8): 891-896.

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