Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
Online ISSN : 1882-1006
Print ISSN : 0015-6426
ISSN-L : 0015-6426
Validation Study
Interlaboratory Study of LC-UV and LC-MS Methods for the Simultaneous Determination of Deoxynivalenol and Nivalenol in Wheat
Koji AOYAMAHajime AKASHINaoki MOCHIZUKIYuji ITOTakashi MIYASHITASoohyung LEEMotoki OGISOMamoru MAEDAShigemi KAIHiroki TANAKAHiroko NORIDUKIHisaaki HIRAOKAToshitsugu TANAKAEiichi ISHIKUROYoshinori ITOHToshihiro NAGAYAMAMasahiro NAKAJIMAShigehiro NAITOYoshiko SUGITA-KONISHI
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2012 Volume 53 Issue 3 Pages 152-156

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Abstract

To evaluate LC methods with UV or MS detection for simultaneous analysis of deoxynivalenol (DON) and nivalenol (NIV) in wheat, an interlaboratory study was conducted in 11 laboratories. DON and NIV were purified using a multifunctional column, and their concentrations were determined using LC-UV or LC-MS(/MS). No internal standards were used. Three fortified wheat samples (0.1, 0.5 and 1 mg/kg), one naturally contaminated wheat sample, and one blank wheat sample were used. The recoveries ranged from 90% to 110% for DON and from 76% to 83% for NIV. For DON, the relative standard deviations for repeatability (RSDr) ranged from 1.1% to 7.6%. The relative standard deviations for reproducibility (RSDr) ranged from 7.2% to 25.2%. For NIV, the RSDr ranged from 2.0% to 10.7%, and the RSDr ranged from 7.0% to 31.4%. Regardless of sample and detector, the HorRat values for DON and NIV ranged from 0.4 to 1.4. Both LC-UV and LC-MS(/MS) methods were considered to be suitable for application as an official method.

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© 2012 Japanese Society for Food Hygiene and Safety
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