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        反相高效液相色譜法測定恩替卡韋口腔速溶膜劑中藥物含量

        發(fā)布時(shí)間:2018-06-23 來源: 散文精選 點(diǎn)擊:


          [摘要] 目的 建立恩替卡韋反相高效液相色譜(RP-HPLC)分析方法,測定口腔速溶膜劑中藥物含量。 方法 以聚乙烯醇/聚乙二醇接枝共聚物為成膜材料,溶劑澆注法制備恩替卡韋口腔速溶膜劑。采用Inertsil ODS-3 C18 (4.6 mm×150 mm,5 μm)色譜柱,以乙腈-水(3∶97)和乙腈為流動(dòng)相A和流動(dòng)相B,檢測波長254 nm,流速1.0 mL/min,柱溫25℃,進(jìn)樣量20 μL,利用梯度洗脫程序測定恩替卡韋口腔速溶膜劑中藥物含量。 結(jié)果 恩替卡韋標(biāo)準(zhǔn)溶液線性回歸方程為:A=52548.1316C-639.5153 (R2=0.9999),日內(nèi)精密度為0.15%~0.56%,日間精密度為0.35%~1.36%,準(zhǔn)確度為99.70%,定量限為0.31 ng,檢測限為0.26 ng,且藥物溶液在24 h內(nèi)穩(wěn)定。恩替卡韋口腔速溶膜劑中藥物含量為(98.93±0.55)%。 結(jié)論 本研究RP-HPLC分析方法專屬性強(qiáng),精密度、準(zhǔn)確度高,穩(wěn)定性好,適用于恩替卡韋口腔速溶膜劑中藥物含量測定。
          [關(guān)鍵詞] 反相高效液相色譜;恩替卡韋;口腔速溶膜劑;聚乙烯醇/聚乙二醇接枝共聚物;含量測定
          [中圖分類號] R927 [文獻(xiàn)標(biāo)識碼] A [文章編號] 1673-7210(2018)02(c)-0019-05
          Determination of drug content in entecavir-loaded orodispersible film by a reverse phase high performace liqiud chromatography
          WEI Teng1 GAO Ying2 CAO Qingri1
          1.College of Pharmaceutical Sciences, Soochow University, Jiangsu Province, Suzhou 215123, China; 2.MSD R&D (China) Co., LTD., Beijing 100000, China
          [Abstract] Objective To establish a reverse phase high performance liquid chromatography (RP-HPLC) method for the determination of drug content in entecavir-loaded orodispersible films (ODFs). Methods The entecavir-loaded ODFs were prepared by using a solvent casting method with polyvinyl alcohol/polyethylene glycol graft copolymer as a film-forming agent. The RP-HPLC analysis was performed on an Inertsil ODS-3 C18 (4.6 mm×150 mm, 5 μm) column with mobile phases composed of acetonitrile-water (3∶97) and acetonitrile. The flow rate of mobile phase was 1.0 mL/min. The wavelength of UV detector was set at 254 nm and the injection volume was 20 μL. The column temparature was mantained at 25℃. The drug content of entecavir-loaded ODFs was analyzed by a gradient elution mode. Results The linear regression equation of entecavir standard solution was A=52548.1316C-639.5153 (R2=0.9999). The intra-day precision was 0.15%-0.56%, the inter-day precision was 0.35%-1.36%, and the accuracy was 99.70%. The limit of detection was 0.31 ng and the limit of quantitation was 0.28 ng. The drug solution was stable within 24 h. The drug content of entecavir-loaded ODFs was (98.93±0.55)%. Conclusion The RP-HPLC method of entecavir shows high specificity, good precision, accuracy, and stability. This method is suitable for the detemination of drug content in entecavir-loaded ODFs.
          [Key words] RP-HPLC; Entecavir; Orodispersible films; Polyvinyl alcohol/polyethylene glycol graft copolymer; Content determination
          恩替卡韋為環(huán)戊基鳥嘌呤核苷類似物,是選擇性抗HBV的口服核苷類藥物[1-2]。恩替卡韋片劑(商品名:博路定)是由Bristol–Myers Squibb公司研發(fā)并于2005 年3月29日美國食品藥品監(jiān)督管理局(FDA)批準(zhǔn)上市[3],2005年11月15日經(jīng)中國國家食品藥品監(jiān)督管理局批準(zhǔn)在中國上市[4]。目前,臨床上應(yīng)用的恩替卡韋治療慢性乙型肝炎(CHB)的劑型,主要有普通片劑、分散片以及膠囊劑。已有報(bào)道的新劑型包括軟膠囊劑[5]、液體制劑[6]、滴丸[7]、腸溶劑[8]及固體分散體[9]等?谇凰偃苣┦菍⒁欢▌┝康挠行С煞秩苡诨蚍稚⒃诔赡げ牧现兄瞥傻闹苿10],可在一分鐘內(nèi)于唾液中崩解,釋放出有效成分,經(jīng)口腔黏膜吸收,同時(shí)使藥物經(jīng)過吞咽后能在胃腸道內(nèi)快速溶出并吸收[11]?谇凰偃苣┡c口腔崩解片、分散片等其它常規(guī)劑型相比,具有很多優(yōu)勢,如體積小,重量輕,便于攜帶運(yùn)輸和貯存,工藝簡單,無水條件可服藥等[12-13]。經(jīng)多方文獻(xiàn)調(diào)查研究,目前國內(nèi)外文獻(xiàn)中對恩替卡韋口腔速溶膜劑的研究,尚未見相關(guān)文獻(xiàn)報(bào)道。本研究以聚乙烯醇/聚乙二醇接枝共聚物(Kollicoat?誖 IR)為成膜材料[14-15],溶劑澆注法[16]制備新型恩替卡韋口腔速溶膜劑,并采用反相高效液相色譜對其進(jìn)行分析方法建立和含量測定[17-18]。

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