当前位置: 首页 > 文章 > 兽用吡喹酮-聚乳酸-羟基乙酸缓释植人棒含量测定及释放度考察 中国兽药杂志 2013,47 (4) 42-45
Position: Home > Articles > Determination and Release Rate of Veterinary Sustained- release  Praziquantel - PLGA Implants Chinese Journal of Veterinary Drug 2013,47 (4) 42-45

兽用吡喹酮-聚乳酸-羟基乙酸缓释植人棒含量测定及释放度考察

作  者:
马丽霞;刘阳;王传栋;王勤
单  位:
山东省医疗器械研究所
关键词:
吡喹酮;PLGA;缓释植入棒;含量测定;HPLC;释放度
摘  要:
建立了吡喹酮-聚乳酸-羟基乙酸(吡喹酮-PLGA)缓释植入棒含量测定的HPLC法,并对其释放度进行了考察.以甲醇-水(100:40,V/V)为流动相,采用GraceC18反相色谱柱(4.6mm250mm,5μm),流速1.0mL/min,紫外检测波长263nm,在此试验条件下,吡喹酮在10-200μg/mL范围内与峰面积线性关系良好,r=0.9999;平均回收率为99.48%,RSD为0.53%(n=9).三批样品的含量分别为98.96%、98.67%和98.81%,该方法简单、快捷、辅料无干扰、准确度高,适于吡喹酮-PLGA植入棒的含量测定.吡喹酮-PLGA植入棒以骨架溶蚀释放机制缓慢释放,释药期可达三周,释放度高于300μg/d.
译  名:
Determination and Release Rate of Veterinary Sustained- release  Praziquantel - PLGA Implants
关键词:
praziquantel% PLGA% sustained - release implant%determination% HPLC% release rate
摘  要:
The paper estabalisted an HPLC method for determination of the praziquantel - PLGA implants, and investigate release rate. The diamonsil C18 column was used, the mobile phase consisted of methanol and uhrafihrated water (100:40,v/v), the flow rate was 1.0 mL/min, the detection wavelength was at 263 nm. Praziquanel has a good linearity at the range of 10 -200μg/mL(r =0. 9999) , and the average recovery was 99.48% with RSD O. 53% ( n = 9 ). The determinations of three lots samples are 98. 96%, 98.67% and 98.81%, respectively. Praziquantel can be slowly released from the implant to three weeks and release rate is more than 300 μg/d. The method is simple, rapid and accurate without excipients interference, and suitable for the determination of the praziquantel - PLGA implants. Praziquantel can be slowly released with the frame - erosion mechanism.

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