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HPLC法测定美洛昔康血药浓度及其药动学 被引量:3

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摘要 目的:建立测定美洛昔康血药浓度的HPLC法,并研究该药在人体内的药动学。方法:采用Waters公司色谱仪,Hypersil BDS C18色谱柱(250 mm×4.6mm,5μm),以甲醇-0.02 mol·L-1磷酸盐缓冲液(pH 5.2)-三乙胺(55:45:0.04,V/V)为流动相,检测波长360 nm。健康志愿者给美洛昔康15 mg后,测定血药浓度,绘制药-时曲线并计算药动学参数。结果:美洛昔康浓度在0.02-3.0 mg·L-1范围内呈良好的线性关系,低、中、高3个浓度的提取回收率均>80%,方法回收率均在100%左右;日内、日间RSD均<10%。美洛昔康的主要药动学参数为AUC0→96h(63.50±14.75)nag·h·L-1,cmax(1.62±0.30)mg·L-1,tamx(5.75±3.28)h,T1/2ke(24.23±5.33)h。结论:本法快捷、灵敏、准确、重复性好,适用于美洛昔康血药浓度的测定和药动学研究。
出处 《中国临床药学杂志》 CAS 2004年第4期231-232,共2页 Chinese Journal of Clinical Pharmacy
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