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利用薄层层析法，以粉防已碱和防已药材为对照品，在氯仿－丙酮－甲醇（６．８∶１．２∶２０），苯－氯仿－丙酮－甲醇（３∶３∶１∶１）二个展开剂中分别展开后，喷碘化铋钾试剂显色。此方法分离效果好，具有定性检查的鉴别意义，为制定调压益心胶囊质量标准提供了实验方法和依据。
Thin-layer chromatography was used as the reference substance for anti-alkali and anti-alkali drugs in chloroform-acetone-methanol (6.8:1.2:20), benzene-chloroform-acetone-methanol (3:3: 1:1) After the two developing agents were respectively developed, a potassium iodide reagent was developed to develop a color. This method has good separation effect and has the qualitative significance of qualitative inspection. It provides experimental methods and basis for formulating the quality standard of regulating pressure Yixin capsule.