英语语法分析

Objective To investigate the synergistic analgesic action of rotundine combined with subthreshold dose of dolantin.

目的观察罗通定与阈下剂量哌替啶合用后对哌替啶镇痛作用的影响。

Objective to establish a UV method to determine the release degree of rotundine sustained-release tablets and to evaluate its in-vitro release behavior.

目的建立罗通定缓释片体外释放度测定方法，评价其体外释药行为。

Methods Ultraviolet spectrophotometry was applied to determine the release degree of rotundine sustained-release tablets with different release mediums.

方法用紫外分光光度法和体外释放度试验，考察罗通定缓释片在不同释放介质中和不同释放时间的累积释放度。