英语语法分析

Methods: Tretinoin in the dropping pills was determined spectrophotometrically and rotating basket method was adopted to determine its dissolution rate.

方法：采用紫外分光光度法测定滴丸中维甲酸的含量，转篮法考察其体外溶出度。

The efficiencies of decolorization and degradation were demonstrated by the changes of absorbance at maximum wavelength in culture liquid spectrophotometrically.

方法采用分光光度法测定培养液最大吸收波长处吸光度的改变，确定染料的脱色率及降解率。

Methods:The polysaccharide content in ganoderma capsules was determined spectrophotometrically and its stability was evaluated at constant temperature by using accelerated method.

方法：采用分光光度法及恒温加速试验法，以灵芝胶囊中多糖为测定指标。