Results: the effect of the molecular weight of PLGA on in vitro release rate was evident.
结果：PLGA相对分子质量对微球体外释放度影响较大。
OBJECTIVE To prepare vitamin C sustained-release tablets and determine their in vitro release rate.
目的：研制维生素c微囊并制成缓释片剂，评价其体外释放特性。
Objective: To study the in vitro release rate of ambroxol HCl osmotic pump controlled release tablets.
前言：目的：研究盐酸氨溴索渗透泵控释片的体外释放度。
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