超高效液相色谱-四极杆/静电场轨道阱高分辨质谱快速测定动源性食品中五种生物毒素
Rapid detection of 5 mycotoxins in food of animal origin by UPLC-HRMS
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摘要: 利用高效液相色谱-四极杆/静电场轨道阱高分辨质谱快速测定动源性食品中黄曲霉毒素B1、黄曲霉毒素B2、黄曲霉毒素G1、黄曲霉毒素G2、脱氧雪腐镰刀菌烯醇等5种生物毒素.样品经甲醇-水(60:40)超声提取,以Accucore RP-MS(100 mm×2.1 mm,2.6 μm)色谱柱为分析柱,乙腈-0.1%甲酸水溶液流动相进行梯度洗脱分离,在Full MS-ddMS2正离子扫描模式下,快速对动源性食品中的目标化合物进行定性定量检测.实验结果表明,在分辨率为70000,扫描范围50—500 m/z内,5种生物毒素的线性相关系数均大于0.99,基质加标回收率范围为73.1%—94.7%,相对标准偏差RSD(n=6)为1.8%—6.9%.
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关键词:
- 超高效液相色谱-静电场轨道阱高分辨质谱 /
- 生物毒素 /
- 动源性食品
Abstract: To establish the rapid detection method of 5 mycotoxin (Aflatoxin B1, Aflatoxin B2, Aflatoxin G1, Aflatoxin G2, Deoxynivalenol) in food of animal origin by Ultra performance liquid chromatography-high resolution mass spectrometry(UPLC-HRMS).The samples were extract with methanol-water(60:40, V:V), isolated with Accucore RP-MS (100 mm×2.1 nm, 2.6 μm), eluted by acetonitrile-0.1% formic acid-water as mobile phase, and detected by Q-Exactive high resolution mass spectrometry in positive ion mode, 5 mycotoxins in food of animal origin were rapidly qualitative and quantitative. Under the conditions of Full MS(50 —500 m/z) and 70000 mass resolution, the 5 mycotoxins(Aflatoxin B1, Aflatoxin B2, Aflatoxin G1, Aflatoxin G2, Deoxynivalenol) had good linear relationship (r≥0.99). The matrix recoveries were between 73.1%—94.7%.The relative standard deviation RSD (n = 6) were between 1.8%—6.9%.-
Key words:
- UPLC-HRMS /
- mycotoxin /
- food of animal origin
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