反相高效液相色谱法测定利卡西平血药浓度 |
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反相高效液相色谱法测定利卡西平血药浓度
张国阳 ; 何银舟 ; 王利
【摘
要】 Objective: To set up the HPLC method for determination of licarbazepine concentration in patient's plasma. Methods: The residues were analyzed by RP- HPLC method. Waters sunfire C18 column (4.6 mm × 250 mm, 5 μm) was used, methanol-water-trifluoroacetic acid (600 : 400 : 0.5) was used as mobile phase. The flow rate was 1.0 mL·min -1. The detection wavelength was set at 230 nm and the column temperature was 40 ℃ . The sample size was 20 μL. Cyproheptadine hydrochloride w as used as internal standard. Results: Linear regression analysis was made by licarbazepine serum concentration (C) and the peak area ratio (y) of licarbazepine vs internal standard. The regression equation was C = 1.227 × 102 y - 0.364 (r2 = 0.9996, n = 7). The results showed that the recovery ratio of licarbazepine was high in the range of 5.0 - 100.0 μg·mL -1 (average recovery rate = 99.80%, RSD = 1.25%). Conclusion: The method provided a simple and precise way for monitoring plasma concentration level of licarbazepine, and this method can be used for therapeutic drug monitoring of licarbazepine.% 目的 : 建立利卡西平血药浓度测定方法 . 方法 : 采用 反相高效液相色谱法 , 色谱柱 :Waters sunfire C18 柱(4.6 mm×250 mm,5μm);流 动相 : 甲醇 - 水 - 三氟乙酸 (600:400:0.5); 流速:1.0 mL·min -1; 柱温:40℃;检测波长 :230 nm; 进样量:20μL.内标物 : 盐酸赛庚啶 . 结果 : 以利卡西平与内标物峰面积之比 (y) 对利 卡西平血清浓度 (C) 进行线性回归 , 得回归方程:C=1.227×102 y - 0.364(r2=0.9996,n=7), 结果表明利卡西平在 5.0~100.0μg·mL -1 范围内样品回收 |
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