| 摘要 |
<p>The present invention relates to a method of making analysis, particularly determination of active substance content and purity thereof in oral controlled-release medicamentous form containing polymer or copolymer of acrylic or methacrylic acid derivatives and a pharmaceutically active polar compound being selected from the group consisting of tamsulosin hydrochloride and venlafaxine hydrochloride, using standard analytic methods such as HPLC, characterized by transferring the active compound into a solution using dimethylsulfoxide, optionally a dimethylsulfoxide- containing solvent mixture.</p> |
