犬血浆中托芬那酸高效液相色谱检测法的建立

Chinese Journal of Veterinary Drug(2016)

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Abstract
为了建立高效液相色谱(HPLC)法测定地犬血浆中托芬那酸的含量,采用 Agilent ZOR-BAX Eclipse Plus C18(250 mm ×4.6 mm,5μm)色谱柱,流动相使用甲醇∶乙腈∶0.05 M醋酸钠(pH =4.6)为36.5∶36.5∶27,流速为0.7 mL/min,柱温为35℃,检测波长为290 nm。结果:托芬那酸的血浆药物浓度在0.05~10.0μg/mL 范围内,线性关系良好(r =0.9993);最低检出限为0.025μg/mL;定量限为0.05μg/mL,平均回收率为85%,批内和批间系数分别小于11%和6%。本方法简便准确、快速可靠,适用于犬血浆中托芬那酸的药动学和相对生物利用度研究。
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