固相萃取-超高效液相色谱-串联质谱法测定脂必妥片中桔霉素的残留量
发布时间:2019-08-01 17:19
【摘要】:目的:采用固相萃取-超高效液相色谱-串联质谱法测定脂必妥片中桔霉素的残留量。方法:采用固相萃取法进行前处理,色谱柱为Zorbax Eclipse Plus C_(18),流动相为水(加0.1%甲酸)-乙腈(70∶30,V/V)(梯度洗脱),流速为0.30 m L/min,柱温为40℃,分析时间为7 min,进样量为2μL;离子化模式为正离子模式,离子源温度为150℃,干燥气流速为15 L/min,鞘气温度为350℃,鞘气流速为12 L/min,毛细管电压为3 500 V,雾化器压力为40 psi,喷雾电压为0 V,工作模式为多反应监测模式。结果:桔霉素检测质量浓度线性范围为0.1~20 ng/m L(r=0.999 4);定量限和检测限分别为0.05、0.01 ng/m L;精密度、稳定性、重复性试验的RSD2.0%;加样回收率为98.868%~103.160%(RSD=1.5%,n=6)。结论:该方法简便快速、灵敏、结果准确,适用于脂必妥片中桔霉素的残留量测定。
[Abstract]:Objective: to determine the residue of citrinin in Zhibituo tablets by solid phase extraction-ultra-high performance liquid chromatography-tandem mass spectrometry. Methods: the column was Zorbax Eclipse Plus C _ (18), the mobile phase was water (adding 0.1% formic acid)-acetonitrile (70 脳 30, V 鈮,
本文编号:2521891
[Abstract]:Objective: to determine the residue of citrinin in Zhibituo tablets by solid phase extraction-ultra-high performance liquid chromatography-tandem mass spectrometry. Methods: the column was Zorbax Eclipse Plus C _ (18), the mobile phase was water (adding 0.1% formic acid)-acetonitrile (70 脳 30, V 鈮,
本文编号:2521891
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