Detection method for six-component costustoot preparation
A detection method and a preparation method technology are applied in the detection of pharmaceutical composition preparations and the detection of Liuweimuxiang preparations, and can solve the problems of high Rf value of pomegranate seeds, negative interference, poor repeatability and specificity, etc.
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experiment example 1
[0065] Experimental Example 1: TLC Identification of Woody Fragrance, Pomegranate Seed and Piper Longum
[0066] 1.1 Identify woody fragrance, pomegranate seed and longan longan according to the identification method issued by the ministry
[0067] Preparation of the test solution: take 2 g of the Liuwei Muxiang preparation, add 20 ml of ethyl acetate, reflux in a water bath at 60 to 80 ° C for 30 minutes, filter, and concentrate the filtrate to about 2 ml as the test solution;
[0068] Preparation of the reference medicinal material solution: take 0.5 g of each of the reference medicinal materials of cassava and pomegranate, and prepare the reference medicinal material solution in the same way;
[0069] Preparation of reference substance solution: take an appropriate amount of piperine reference substance, accurately weighed, add methanol to make a solution containing 1 mg of piperine per 1 ml, as the reference substance solution;
[0070] Preparation of woody negative sam...
experiment example 2
[0104] Experimental example 2: Determination of the content of corylidene and dehydrocorylides contained in coriander
[0105] (1) Instrument
[0106] Erlenmeyer flask, volumetric flask, pipette, syringe, beaker, funnel, filter paper, filter head, electronic balance (Mettler Toledo, model: XS205), high performance liquid chromatography (Agilent, USA, model: Aglient 1100 ).
[0107] (2) Reference substances: corylidene (batch number: 111524-201006) and dehydrocorylidene (batch number: 111525-200907), both purchased from China Institute for the Identification of Pharmaceutical and Biological Products.
[0108] (3) Reagents: methanol, acetonitrile, ethanol, water.
[0109] (4) Inspection method:
[0110] The choice of extraction solvent: use methanol and ethanol respectively;
[0111] Selection of extraction time: use ultrasound for 20 minutes, 30 minutes, and 45 minutes to test;
[0112] Choice of mobile phase: Acetonitrile-water (65:35), acetonitrile-water (60:40), metha...
experiment example 3
[0119] Experimental example 3: Determination of the content of coylin and dehydrocorylides contained in woody fragrance - methodology study
[0120] (1) Instruments and reagents
[0121] Agilent 1100 high performance liquid chromatograph (Agilent Corporation of the United States): G1314A UV-visible detector, G1314A binary pump, Agilent1100 chromatographic workstation;
[0122] SK8200HP ultrasonic cleaner (power 250W, frequency 40kHz) (Shanghai Kedao Ultrasonic Instrument Co., Ltd.);
[0123] Acetonitrile (chromatographically pure), methanol (analytical pure);
[0124]Cosmolide (batch number: 111524-201006) and dehydrocosmolide (lot number: 111525-200907) were purchased from China National Institute of Pharmaceutical and Biological Products;
[0125] Liuwei Muxiang preparation: provided by Tibet Qizheng Tibetan Medicine Co., Ltd.
[0126] (2) Chromatographic conditions
[0127] Octadecyl bonded silica gel as filler;
[0128] Chromatographic column: Kromasil E56526-C18 ...
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