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作 者:程燕 谭顺中 姜登军 CHENG Yan;TAN Shun-Zhong;JIANG Deng-Jun(Wanzhou Institute for Food and Drug Control,Wanzhou 404000,China)
出 处:《食品安全质量检测学报》2018年第15期4078-4084,共7页Journal of Food Safety and Quality
摘 要:目的建立超高效液相色谱法(ultra performance liquid chromatography,UPLC)同时测定功能性饮品和抗疲劳类保健食品中非法添加的11种化学药物。方法采用Waters BEH C_(18)柱(100 mm×2.1 mm,1.7μm),以甲醇-10 mmol/L乙酸铵溶液(冰醋酸调p H至3.5)为流动相进行梯度洗脱,柱温35℃,流速0.2 mL/min。二极管阵列检测,外标法定量。结果 11种化合物在浓度为1.0~50μg/m L范围内线性关系良好(r>0.998)。在10、20、40μg/mL 3个添加水平的回收率为91.8%~104.6%,相对标准偏差小于5.0%。结论该法具有较好的专属性、线性、回收率和精密度,可用于抗疲劳类保健食品中非法添加的11种化学药物的同时测定。Objective To establish a method for simultaneous determination of 11 kinds of illegally added chemical drugs in unctional drinks and anti-fatigue health foods by ultra performance liquid chromatography(UPLC). Methods The samples were separated with a Waters BEH C_(18) column(100 mm×2.1 mm, 1.7 μm) at the flow rate of 0.2 mL/min by gradient elution using methanol and 10 mmol/L ammonium acetate solution(adjusted to pH 3.5 with glacial acetic acid) as the mobile phase. The temperature of the column was maintained at 35 ℃, the detection was carried out by photo-diode array and quantitatively analyzed by external standard method. Results The 11 kinds of compounds showed good linear relationships in the concentration range of 1-50 μg/m L(r〉0.998). The recoveries were 91.8%-104.6% at the 3 spiked levels of 10, 20 and 40 μg/m L, and the relative standard deviations were less than 5.0%. Conclusion The method has good specificity, linearity, recovery and precision, and can be used for simultaneous determination of 11 kinds of illegally added chemical drugs in anti-fatigue health food.
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