高效液相色谱法测定复方倍他米松注射液中防腐剂的含量  

Determination of Preservatives in Betamethasone Injectable Suspension by HPLC

作　　者：肖波[1] 沈丹丹 吴群 张涛 XIAO Bo SHEN Dan-dan WU Qun ZHANG Tao(Chongqing Research Academy of Pharmaceutical Industry, Chongqing 400061, China Chongqing Institute for Food and Drug Control, Chongqing 401121, China Chongqing Research Center for Drug Process and Quality Control Engineering, Chongqing 401121, China Fuan Pharmaceutical Lybon Pharm-tech Co. , Ltd, Chongqing 401121, China)

机构地区：[1]重庆医药工业研究院有限责任公司,重庆400061 [2]重庆市食品药品检验检测研究院,重庆401121 [3]重庆市药物过程与质量控制工程技术研究中心,重庆401121 [4]福安药业集团重庆礼邦药物开发有限公司,重庆401121

出　　处：《中国药学杂志》2017年第14期1280-1284,共5页Chinese Pharmaceutical Journal

摘　　要：目的建立HPLC同时测定复方倍他米松注射液中防腐剂苯甲醇、对羟基苯甲酸甲酯、对羟基苯甲酸丙酯含量。方法以5 mmol·L^(-1)醋酸铵(含1%三乙胺,用冰醋酸调节p H至5.0)为流动相A,乙腈为流动相B,梯度洗脱,流速1.0 m L·min^(-1);检测波长257 nm;柱温30℃。结果苯甲醇、对羟基苯甲酸甲酯及对羟基苯甲酸丙酯3个主峰与相邻色谱峰之间的分离度大于1.5。苯甲醇、对羟基苯甲酸甲酯及对羟基苯甲酸丙酯分别在0.175 9~1.758 6 mg·m L^(-1)(r=1.000 0)、0.022 3~0.223 1 mg·m L^(-1)(r=0.999 8)、0.004 35~0.043 47 mg·m L^(-1)(r=1.000 0)内线性关系良好,平均回收率分别为98.98%,99.38%和100.07%,RSD分别为0.6%,1.3%和1.0%(n=9)。影响因素试验结果表明,对羟基苯甲酸甲酯及对羟基苯甲酸丙酯在高温条件下含量下降。结论经方法学验证,本方法可用于复方倍他米松注射液中防腐剂的质量控制。OBJECTIVE To establish an HPLC method for determination of the preservatives in betamethasone injectable suspen- sion, including benzyl alcohol, methylparaben and propylparaben. METHODS The determination method was developed with 5 mmol· L-1 ammonium acetate（containing 1% triethylamine and adjusted to pH 5.0 with glacial acetic acid） as mobile phase A and acetonitrile as mobile phase B, and gradient elution was performed at a flow rate of 1.0 mL · min-1. The column temperature was maintained at 30 ℃ and the detection wavelength was set at 257 nm. RESULTS The resolutions betweenthe three main peaks and adjacent peaks were greater than 1.5. The calibration curves of benzyl alcohol, methylparaben and propylparaben showed good linearily in the ranges of 0.1759-1.7586 mg· mL-1（r=1.0000）, 0.0223-0.223 1 mg· mL-1（r=0.999 8）, 0.00435-0.04347 mg · mL-1 （ r = 1. 000 0） , respectively. The average recovery rates were 98.98% , 99.38% and 100. 07% , and the RSDs were 0. 6% ,1.3% and 1.0% （n =9）, respectively. The results of test of influencing factors showed thai the contents of hydmxyphenylm- ethyl ester and propylparaben decreased at high temperature. CONCLUSION The developed method is proved by validation to be applicable for the quality control of the preservatives in betamethasone injectable suspension.

关 键 词：复方倍他米松注射液 苯甲醇 对羟基苯甲酸甲酯 对羟基苯甲酸丙酯 含量测定 高效液相色谱法 影响因素 

分 类 号：R917[医药卫生—药物分析学]