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zyc666999木虫 (小有名气)
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50金币求助中译英
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满山红分散片中以满山红对照药材为对照，照薄层色谱法(2005版药典一部附录VIB) ，以正己烷-乙酸乙酯-甲醇（5:5:0.2）为展开剂，展开，取出，晾干，置紫外光灯(365nm)下检视。 成品中杜鹃素含量的测定:采用Shim-pack VP-ODS C18 250mm×4.6mm/5um，流动相为甲醇:水(60:40)，检测波长为297nm，流速为lml/min，进样量 为10μl。照高效液相色谱法（2005版药典一部附录VID），以约30μg/ml的杜鹃素为对照品溶液，理论塔板数按杜鹃素峰计算不低于5000,测定杜鹃素的峰面积，计算其含量。同时进行了测定波长的选择试验，溶剂和超声时间的选择试验精密度试验、重现性试验、稳定性试验和加样回收试验. 2.3对本品进行了重金属检查和砷盐检查，其含量分别小于百万分之十和小于百万分之一，故没有列入标准。 [ Last edited by zyc666999 on 2010-3-2 at 22:35 ] |
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clearsky7228
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zyc666999(金币+50): 2010-03-03 15:32
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In Rhododendron dispersible tablets Rhododendron to medicine as comparison, according to thin-layer chromatography (a 2005 edition of Pharmacopoeia Appendix VIB), with n-hexane - ethyl acetate - methanol (5:5:0.2) as the agent, to start out, drying, it was inspect under ultra-violet light (365nm). Determination of Rhododendron content in finished productl : The Shim-pack VP-ODS C18 250mm × 4.6mm/5um was aopted, mobile phase methanol: water (60:40), detection wavelength 297nm, flow rate of lml / min, and injection volume of 10μl. According to high-performance liquid chromatography (2005 edition pharmacopoeia an appendix VID), about 30μg/ml of Farrerol as the comparing substance solution, theoretical plate number calculated by the Rhododendron peak, not less than 5000, and measured Rhododendron peak area, its content was calculated . At the same time the experiment of choice of wavelength , solvents and ultrasonic time ,precision, reproducibility, stability and sample collection were carried. 2.3 The heavy metals and arsenic salts inspection to this sample was carried out , and their contents were less than 10 millionths and less than one in a million, respectively.Thus,it has not been included in the standard. |
2楼2010-03-03 15:28:25
