PMID- 20873582 OWN - NLM STAT- MEDLINE DCOM- 20120105 LR - 20190923 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 28 IP - 6 DP - 2010 Jun TI - [Determination of zearalenone and related mycotoxins in grain and its products by solid-phase extraction coupled with ultra performance liquid chromatography-tandem mass spectrometry]. PG - 601-7 AB - A method was established for the determination of 6 zearalenonic compounds (alpha-zearalanol, beta-zearalanol, alpha-zearalenol, beta-zearalenol, zearalanone and zearalenone) in grain and its products based on solid-phase extraction coupled with ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The samples was extracted by 84% (v/v) acetonitrile-water solution and further purified by an ENVI-Carb graphite carbon black (GCB) cartridge, which was eluted by 6 mL dichloromethane-methanol (7:3, v/v) solution. The target compounds were assayed by UPLC-MS/MS. The chromatographic separation was performed on an ACQUITY UPLC BEH C18 column with gradient elution using acetonitrile and water as mobile phases. The mass spectrometric acquisitions were carried out by means of multiple reaction monitoring (MRM) in electrospray negative ionization mode. The good linearities (R2 > 0.99) were achieved for the 6 compounds over the range of 0.1-50 microg/L based on the internal standard calibration of a-zearalenol-d4. The detection limits of the method were 0.1-0.2 microg/kg. The mean recoveries of the 6 target compounds (spiked at three concentration levels) ranged from 79.9% to 104.0%, with the relative standard deviations (RSDs) no more than 10%. It has been applied in the analysis of grain and related products taken from Beijing. As a result, zearalenone presented a highest detectable frequency, with a concentration range of 0.42-220.7 microg/kg. In addition, alpha-zearalenol and beta-zearalenol were also detected in this survey. This proposed method is simple, sensitive, reproducible, and complied with the regulations for the determination of trace contaminants residues in food matrices. FAU - Meng, Juan AU - Meng J AD - Beijing Center for Disease Control & Prevention, Beijing 100013, China. FAU - Zhang, Jing AU - Zhang J FAU - Zhang, Nan AU - Zhang N FAU - Shi, Jiachen AU - Shi J FAU - Shao, Bing AU - Shao B LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Mycotoxins) RN - 5W827M159J (Zearalenone) SB - IM MH - Chromatography, High Pressure Liquid/*methods MH - Edible Grain/*chemistry MH - Food Contamination/analysis MH - Mycotoxins/*analysis MH - Solid Phase Extraction/methods MH - Tandem Mass Spectrometry/*methods MH - Zearalenone/*analysis EDAT- 2010/09/30 06:00 MHDA- 2012/01/06 06:00 CRDT- 2010/09/30 06:00 PHST- 2010/09/30 06:00 [entrez] PHST- 2010/09/30 06:00 [pubmed] PHST- 2012/01/06 06:00 [medline] AID - 10.3724/sp.j.1123.2010.00601 [doi] PST - ppublish SO - Se Pu. 2010 Jun;28(6):601-7. doi: 10.3724/sp.j.1123.2010.00601.