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作 者:任玉红[1] 孙静霞[1] 姜红[1] 沈建平[2] 张银娣[2] 张正行[1]
机构地区:[1]中国药科大学药物分析教研室,南京210009 [2]南京医科大学临床药理研究所,南京210029
出 处:《中国药学杂志》2006年第23期1814-1817,共4页Chinese Pharmaceutical Journal
摘 要:目的 建立人血浆中阿比多尔的HPLC测定方法,测定志愿者口服盐酸阿比多尔颗粒剂后的血药浓度,并对受试制剂和参比制剂的生物等效性进行评价。方法 血浆样品中加入内标SI-5后以0.1mol·L^-的NaOH碱化,以环己烷提取,氯气吹干后用流动相溶解,进行HPLC分析,色谱柱为Alltech C18(4.6mm×250mm,5μm);流动相为甲醇-1.32%三乙胺溶液(80:20);流速为1.0mL·min^-1;检测波长为315nm,进样20μL。20名健康志愿者交叉口服受试制剂和参比制剂,剂量均为400mg,计算主要药动学参数厦相对生物利用度以判断生物等效性。结果 阿比多尔血浆样本线性范围为0.02~2.0mg·L^-1,检测限为0.01mg·L^-1;受试制剂和参比制剂的峰浓度分别为(0.879±0.175)和(0.741±0.167)mg·L^-1:达峰时间分别为(0.7±0.3)和(1.2±0.4)h;生物半衰期分别为(20.06±4.32)和(21.24±4.42)h,受试制剂的相对生物利用度为(100.4±10.5)%。结论 本试验建立的分析方法简便、准确、灵敏、专属性强,统计学结果表明两种制剂生物等效。OBJECTIVE To establish a HPLC method for bioavailability and pharrnacokinetics of arbidol in human plasma. METHODS After adding SI-5, the internal standard, and 0.1 mol·L^-1 NaOH solution, the plasma samples were extracted with cyclohexane and determined by HPLC. The HPLC column was Cl8 (4.6 mm× 250mm, 5 μm), the mobile phase was CH3OH-1.32 % TEA(80:20), the flow rate was 1.0 mL·min ^-1, the detection wavelength was 315 nm. A randomized crossover design was performed in 20 male volunteers after oral administration of arbidol test and reference preparations. RESULTS Calibration curves were linear over the range of 0.02~2.0 mg·L^- 1, the limit of detection was 0.01 mg·L^-1. The main pharmacokinetic parameters of ρmax,tmax and t1/2 were (0.879 ± 0.175) mg·L^- 1, (0.7± 0.3 ) h and (20.06 ± 4.32)h for the test granules, and(0.741 ± 0.167) mg·L^-1, (1.2 ±0.4)h and (21.24 ± 4.42)h for the reference tablets, respectively. The relative bioavailability of the test granules was (100.4 ±10.5)% .CONCLUSION The method is simple, accurate and sensitive. The statistic analysis shows that the two preparations were bioequivalent.
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