Detection method of Liuweinengxiao preparation
A preparation and composition technology, applied in the field of quality inspection of pharmaceutical composition preparations
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experiment example 1
[0034] TLC Identification of Experimental Example 1 Myrobalan
[0035] With reference to the method under the item of Myrobalan in the 2010 edition of "Chinese Pharmacopoeia" to process the sample (Liuwei Nengxiao Tablet), after unfolding according to the law, it was found that the chromatogram of the Myrobalan reference medicinal material and the gallic acid reference substance had the same color spots at the corresponding positions, while the test The spots on the corresponding position on the sample chromatogram are not clear. It is speculated that it may be caused by the acid-base neutralization reaction between the alkaline components in the sample such as alkali flower (mainly containing calcium carbonate) and gallic acid. Therefore, the ethanol in the pharmacopoeia method was directly extracted Change to ethanol and extract under acidic conditions, to inhibit gallic acid from reacting with alkaline components, prepare need testing solution, gallic acid reference substanc...
experiment example 2
[0036] TLC Identification of Experimental Example 2 Dried Ginger
[0037] Treat the sample (Liuweinengxiao Tablet) with reference to the method under the item of dried ginger in the 2010 edition of the "Chinese Pharmacopoeia", unfold it according to the law, and develop the color. It is found that the spots in the sample chromatogram do not correspond well to the reference medicinal materials, and there is a tailing phenomenon, which affects the judgment of the result. . After repeated tests, when the developer was changed to cyclohexane-ethyl acetate (6:4), the spots were completely separated and the effect was better when inspected directly under the ultraviolet light (365nm). Prepare the dried ginger reference drug solution by the extraction method in the standard, and prepare the negative reference substance solution (lacking dried ginger) with the same method, test according to thin-layer chromatography ("Chinese Pharmacopoeia" 2010 edition an appendix VIB), draw the abov...
experiment example 3
[0038] The content assay method of emodin and chrysophanol in experimental example 3 rhubarb
[0039] (1) Instruments and reagents
[0040] Aglient 1100 high-performance liquid chromatography (HP Company of the United States) CSF-IB ultrasonic cleaner (Shanghai Ultrasonic Instrument Factory).
[0041] Methanol (chromatographically pure); Chloroform (analytical pure).
[0042] Emodin and chrysophanol were purchased from China National Institute of Pharmaceutical and Biological Products (batch numbers: 110756-200110, 110796-200310 respectively);
[0043] Liuweinengxiao tablets are products of Gansu Qizheng Tibetan Medicine Co., Ltd.
[0044] (2) Chromatographic conditions
[0045] Octadecyl bonded silica gel is used as filler; Chromatographic column: XDB-C18 column (4.6×250mm, original column of Aglient Company);
[0046] Mobile phase: methanol-0.1 phosphoric acid solution (V:V=85:15);
[0047] Flow rate: 0.80ml / min;
[0048] Detection wavelength: 254nm;
[0049] Column t...
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Abstract
Description
Claims
Application Information
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