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Determination of Auramine O in animal feedstuffs using ultra performance liquid chromatography tandem mass spectrometry / Nguyen Thi Ha, Nguyen Bich Nu, Le Phuong Thao, Tran Thi Hong, Nguyen Kieu Hung // Journal of Science and Technology - NTTU . - 2019. - p. 53-58. - ISSN: 2615-9015

Ho Chi Minh city : Nguyen Tat Thanh University, 2019
6 p.
Ký hiệu phân loại (DDC): 664.02
A method based on ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UPLC/MS/MS) was developed for simple and rapid determination of the residues of Auramine O in animal feedstuffs. The samples were extracted by MeOH: H2O + HCOOH 0.1% and then analyzed in multiple reaction monitoring (MRM) mode. The mobile phase was ultrapure water with 0.1% formic acid. Under the optimized detection conditions, the linear range for Auramine O was 20 - 100µg/L and the linear correlation coefficients found more than 0.99. The limit of quantification of Auramine O was 0.34 mg/kg. The recoveries of Auramine O ranged from 64.71 - 94.12% with relative standard deviations (RSD) of 4.93 - 8.31% with the concentration range of 20 - 100 µg/L. This method is simple, effective, sensitive and is suitable for the determination and confirmation of Auramine O in animal feedstuffs
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