(三)近视复明片的质量标准 1.定性分析:硅胶G板经105℃活化1小时,展开剂为苯:石油醚(10:1),上行展开。结果为靠近前沿的斑点Rf=0.64,于紫外灯下呈蓝灰色斑点。 2.含量测定:本法根据处方中所含成分,决定采用分光光度计测定总蒽醌类含量,间接说明总浸出量情况。 (1)吸收光谱绘制:取1片近视复明片素片,研细后置于三角烧瓶内加40m1无水乙醇,加热至沸(放漏斗冷却),过滤二次,精密称取2m1,置于10ml量瓶内,用 (C) the quality standards of myopia Fuming tablets 1. Qualitative analysis: silica gel G plate activated at 105 ℃ for 1 hour, the agent is benzene: petroleum ether (10: 1), the uplink expansion. The result was a spot Rf = 0.64 near the leading edge, a blue-gray spot under the UV light. 2. Determination of content: This method according to the ingredients contained in the prescription, decided to use spectrophotometer determination of total anthraquinone content, indirect description of total leaching situation. (1) absorption spectrum drawing: Take a piece of myopia Fuming tablets, finely ground and placed in a conical flask plus 40m1 ethanol, heated to boiling (put funnel cooling), filtered twice, accurately weighed 2ml, placed 10ml volumetric flask, use