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(hào)] R927 [文獻(xiàn)標(biāo)識(shí)碼] A [文章編號(hào)] 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。口腔速溶膜劑是將一定劑量的有效成分溶于或分散在成膜材料中制成的制劑[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(shì),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(duì)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(duì)其進(jìn)行分析方法建立和含量測定[17-18]。
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