HPLC测定犬血浆中的视黄醇、视黄醇棕榈酸酯和视黄醇硬脂酸酯
Determination and pharmacokinetics study of Vitamin A in beagle dogs plasma by HPLC
作者:王欣瑜;杨付英;陈和莉;党宏万;穆光辉;戴贵东;
Author:
收稿日期: 年卷(期)页码:2014,29(03):-302-305
期刊名称:华西药学杂志
Journal Name:WEST CHINA JOURNAL OF PHARMACEUTICAL SCIENCES
关键字:视黄醇;视黄醇棕榈酸酯;视黄醇硬脂酸酯;药动学;高效液相色谱
Key words:
基金项目:
中文摘要
目的采用HPLC测定比格犬血浆中的视黄醇(RL)、视黄醇棕榈酸酯(RP)、视黄醇硬脂酸酯(RS),并研究RP在比格犬体内的药动学。方法采用Agilent Extend-C18色谱柱(250 mm×4.6 mm,5μm),乙腈-甲醇-1%乙酸铵溶液-四氢呋喃为流动相梯度洗脱,检测波长325 nm,以视黄醇醋酸酯为内标;血浆样本以无水乙醇沉淀蛋白后,用正己烷提取,N2吹干后复溶测定。结果 RL、RP、RS的线性范围分别为:0.5620~56.20、0.4698~46.98、0.5215~52.15μg·mL-1,r分别为0.9977、0.9971、0.9977(n=7),日内、日间RSD均≤10.2%,RL、RP、RS的提取回收率分别为78.0%~93.0%、79.4%~101.7%、78.8%~101.8%。比格犬单次口服视RP微囊后,RP的Tmax为7.333±1.033 h,Cmax为2.342±0.337 mg·L-1,AUC(0-t)为44.913±12.963 mg·L-1·h。结论所用方法简便准确,适于比格犬血浆中RL、RP、RS的同时测定及药动学研究。
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