Quantitative detection method for sennoside A and sennoside B in Tongbianning tablets

The invention relates to a quantitative detection method for sennoside A and sennoside B in Tongbianning tablets. According to the quantitative detection method, the sennoside A and the sennoside B are subjected to quantitative determination by using high-performance liquid chromatography. The method comprises the following steps: (1) preparing a solution of a product to be tested; (2) preparing a reference substance solution; (3) carrying out determination. The detection method provided by the invention has the advantages of convenience in operation, high specificity, good accuracy and good stability, the quality of the Tongbianning tablets can be accurately reflected, and the effectiveness of medication for human is ensured, so that the detection method has an important significance in control of quality of industrially-produced Tongbianning tablets. 本发明涉及种对通便宁片中番泻苷A和番泻苷B的定量检测方法，运用高效液相色谱法对番泻苷A、番泻苷B进行定量测定，包括如下步骤：1)供试品溶液制备；2)对照品溶液制备；3)测定。本发明的检测方法，具有操作方便、专属性强、准确度好、稳定性好的优点，能够准确的反应通便宁片的质量，确保了人体用药的有效性，对于控制工业生产通便宁