Bithionol residue analysis in animal-derived food products by an effective and rugged extraction method coupled with liquid chromatography-tandem mass spectrometry
文献类型: 外文期刊
第一作者: Zheng, Weijia
作者: Zheng, Weijia;Park, Jin-A;Abd El-Aty, A. M.;Kim, Seong-Kwan;Cho, Sang-Hyun;Choi, Jeong-Min;Yi, Hee;Cho, Soo-Min;Kim, Jin-Suk;Shin, Ho-Chul;Abd El-Aty, A. M.;El-Banna, H. A.;Shim, Jae-Han;Chang, Byung-Joon;Wang, Jing
作者机构:
关键词: Bithionol;Porcine muscle;Egg;Milk;Fish;Flatfish;Shrimp;Residues;LC-MS/MS
期刊名称:JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES ( 影响因子:3.205; 五年影响因子:3.068 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Herein, we developed a simple analytical procedure for the quantitation of bithionol residues in animal-derived food products such as porcine muscle, eggs, milk, eel, flatfish, and shrimp using a modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction method coupled with liquid chromatography electrospray ionization tandem mass spectrometry (LC-ESI+/MS-MS). Samples were extracted with 0.1% solution of formic acid in acetonitrile and the extract was purified using a C18 sorbent. Separation was performed on a Waters XBridge (TM) C18 reversed-phase analytical column using 0.1% solution of formic acid/acetonitrile as the mobile phase. Six-point matrix-matched calibration indicated good linearity, with the calculated coefficients of determination (R-2) being >= 0.9813. Intra- and inter-day recoveries (determined at spiking levels equivalent to 1 x and 2 x the limit of quantitation (0.25 mu g/kg)) ranged between 80.0 and 94.0%, with the corresponding relative standard deviations (RSDs) being <= 8.2%. The developed experimental protocol was applied to different samples purchased from local markets in Seoul, which were tested negative for bithionol residues. In conclusion, the proposed method proved to be versatile and precise, being ideally suited for the routine detection of bithionol residues in animal-derived food products with various protein and fat contents.
分类号: Q503
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