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UPLC-MS/MS法测定氟喹诺酮类药物可溶性粉中非法添加物利巴韦林
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摘要
建立了氟喹诺酮类药物可溶性粉中非法添加物利巴韦林检测的UPLC-MS/MS方法。样品经提取稀释后,采用ACQUITY UPLC~RBEH amide色谱柱为分离柱,质谱正离子扫描测定。结果显示,利巴韦林在1~50 ng/mL的范围内线性关系良好(R~2=0.9984);样品检出限为0.5 mg/g,定量限为2 mg/g。在50mg/g添加水平的回收率为90%110%,批内批间变异系数均小于10%。本方法快速、灵敏、重现性好,适用于氟喹诺酮类药物可溶性粉中非法添加利巴韦林的检测。
A method was established for determination of ribavirin added in FQs veterinary medicine by UPLC-MS/MS.The diluted ribavirin were extracted from samples and separated by ACQUITY UPLC~R BEH amide.The goals solution was analyzed by UPLC-MS/MS with positive ion mode.The results showed that the good linear range was 1 to 50 ng/mL(R~2=0.9984).The detection limit was 0.5mg/g,and the quantitation limit was 2 mg/g.The analysis of spiked 50mg/g ribavirin showed that the recoveries ranged from 90%to 110%and the relative standard deviations were below 10%.The experiment showed that the method was reliable,sensitive and reproducibility and suitable for the determination of ribavirin added in FQs veterinary medicine.
引文
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