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aswman08

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根据国家食品药品监督管理局《中药注射剂指纹图谱研究技术指南》、《中药注射剂色谱指纹图谱实验技术指南》和相关文献，通过指纹图谱方法学考查实验，确定了西洋参叶高效液相指纹图谱的最佳色谱条件：色谱柱：十八烷基硅烷键合硅胶为填充剂；流动相：A：乙腈， B：水（0.05%磷酸，2%四氢呋喃）。柱温为40℃，进样量为20μL，流速为1.0ml/min，检测波长为203nm；0~18min，A：20%； 18~58min，A：20~40%（线性梯度）； 58~73min，A：40~100%（线性梯度）； 73~80min，100%。试验分析表明：西洋参叶指纹图谱共有14个共有峰，产地为东北（长白、抚松、临江、靖宇和朝阳）之间有优良好的相似性（大于0.9），产地为山东（莱阳和文登）之间相似性较好，而东北和山东两者之间的相似度略差（0.8～0.9），因此建议在选用药材时，应尽量选用地域接近的药材，它们之间的相似度较好。

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1楼 2011-01-20 14:14:17

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糊涂豆

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aswman08(金币+5, 翻译EPI+1): 2011-01-26 08:44:27

According to the State Food and Drug Administration"Fingerprints of TCM injections Technical Guide","chromatographic fingerprint of traditional Chinese medicine injections Experimental Technology Guide " and the relevant literature, we determined the best chromatographic conditions of the HPLC fingerprint of American ginseng leaves by fingerprint analysis experiment .
Column: octadecyl silane bonded silica as a filler;
Mobile phase: A: acetonitrile, B: water (0.05% phosphoric acid, 2% tetrahydrofuran).
Column temperature:40 ℃
Injection volume: 20μL,
Flow rate :1.0ml/min
Detection wavelength: 203nm; 0 ~ 18min A: 20%; 18 ~ 58min, A: 20 ~ 40% (linear gradient); 58 ~ 73min, A: 40 ~ 100% (linear gradient); 73 ~ 80min, 100%.

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2楼2011-01-22 08:14:06

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8814402

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aswman08(金币+10): 2011-01-26 08:44:39

According to instructive rules of "Fingerprints of TCM Injections Technical Guide" and "Chromatographic Fingerprint of TCM injections Experimental Technology Guide " from the State Food and Drug Administration and related literatures, we set up the fingerprint chromatogram condition for the analysis of the leaves of Panax Quinquefolium Linn.The analysis was performed on octadecyl silane bonded silica column (column temperature:40 ℃) with acetonitrile (A) -0.05% phosphoric acid(B, contains 2% tetrahydrofuran) as mobile phase with gradient elution at flow rate of 1.0 mL/min. The UV detection wavelength was 203 nm. The gradient elution was carried out as follows: 0-18 min, A: 20%; 18-58 min, A: 20% to 40% (linear gradient); 58-73 min, A: 40% to 100% (linear gradient); 73 -80min, A: 100%. It was indicated that all the fingerprint chromatograms of the leaves of Panax Quinquefolium Linn had 14 shared peaks and that similarity of chromatograms of leaves of Panax Quinquefolium Linn varied from cultivation areas: chromtogram similarities of those from the Northeast were superior( >0.9); those from Shangdong were also good; but chromtogram similarity between thsoe from the Northeast and those from Shangdong was not so good (0.8-0.9). Thus, it is suggested that leaves of Panax Quinquefolium Linn from same cultivation area should be selected when needed because of better similarity.

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3楼2011-01-22 09:47:16

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