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目的建立快速检测大鼠血浆中伊马替尼浓度的UPLC-MS/MS方法。方法用乙腈沉淀血浆蛋白的方法处理,运用三重四级杆液质联用仪,色谱柱为CORTECS~(TM)UPLC~C18柱(100 mm×2.1 mm,1.6μm);流动相为乙腈-水(含0.1%甲酸),梯度洗脱,流速为0.4 ml·min~(-1),柱温40℃,内标为阿帕替尼;质谱条件:电喷雾离子化源(ESI),正离子检测模式。结果伊马替尼的保留时间为0.94 min,线性范围为10~1600 ng·ml~(-1)(r=0.9991),最低定量限为2 ng·ml~(-1),回收率为73.91%~77.88%,日内、日间RSD均<10%。结论该法准确可靠,操作简便,重复性好,适于检测大鼠血浆中伊马替尼的浓度。
Objective To establish a rapid UPLC-MS / MS method for the rapid determination of imatinib in rat plasma. Methods The plasma protein was precipitated by acetonitrile, and the mobile phase consisted of CORTECS ~ (TM) UPLC ~ C18 column (100 mm × 2.1 mm, 1.6 μm) using a triple quadrupole mass spectrometer. The mobile phase consisted of acetonitrile- Water (containing 0.1% formic acid) gradient elution at a flow rate of 0.4 ml · min -1 with a column temperature of 40 ° C and an internal standard of apatinib; mass spectrometry conditions: electrospray ionization source (ESI) Ion detection mode. Results The retention time of imatinib was 0.94 min with a linear range of 10 ~ 1600 ng · ml ~ (-1) (r = 0.9991), the lowest limit of quantification was 2 ng · ml ~ (-1) and the recovery was 73.91 % ~ 77.88%, day and day RSD <10%. Conclusion The method is accurate, reliable, simple, reproducible and suitable for detecting the concentration of imatinib in rat plasma.