Detection method of pharmaceutical preparation for curing stomach pain caused by qi stagnation
A technology for pharmaceutical preparations and detection methods, applied in the detection field of pharmaceutical preparations, can solve the problems of control, lack of a method for measuring limonene content of Qi-stagnation Weitong Granules, unfavorable quality of Qi-stagnation Weitong Granules, etc. Stability, fast detection method effect
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[0084] 1. Instruments and reagents
[0085] 1.1 Instrument
[0086] Shimadzu 10A high performance liquid chromatograph (Shimadzu Corporation, Japan);
[0087] ACCULAB ALC-11C.4 electronic balance (German Sartorius Group);
[0088] SHZ-DⅢ type circulating water vacuum pump (Gongyi Yuhua Instrument Co., Ltd.);
[0089] Welch Ultimate LP-C18 chromatographic column (4.6mm×250mm, 5μm) (U.S. Yuexu Company), made by three-position bonding process (three silicon-hydroxyl bonds combined with a bonding phase C18);
[0090] Ultrapure water treatment device (Milli-Q, Millipore Corporation, USA);
[0091] HS6150 Ultrasonic Cleaner (Tianjin Hengao Technology Development Co., Ltd.);
[0092] HHS type electronic constant temperature water bath (Shanghai Boxun Industrial Co., Ltd. Medical Equipment Factory).
[0093] 1.2 Test drug
[0094] Sugar-free qi stagnation stomach pain granules (Liaoning China Resources Benxi Three Medicines Co., Ltd., batch numbers are 20141112, 20141111, 20140304, 20140914, 2014091...
Embodiment 1
[0172] Example 1 Preparation of sugar-free granules
[0173] [Prescription] 36 parts by weight of Bupleurum, 20 parts by weight of licorice, 40 parts by weight of Cyperus rotundus, 40 parts by weight of Corydalis, 48 parts by weight of white peony, and 40 parts by weight of Fructus Aurantii.
[0174] [Preparation method] (1) Take selected parts by weight of Citrus aurantium and Cyperus rotundus, extract to obtain extract A and volatile oil A; add β-cyclodextrin and water to the volatile oil A, and clathrate for 0.5 to 4 hours to obtain Inclusion compound A;
[0175] (2) Take selected parts by weight of Bupleurum, Licorice, Corydalis and Radix Paeoniae Alba, add water and extract twice, the first extraction is 0.5 to 4 hours, the second extraction is 0.5 to 3 hours, and the extracts obtained from the two extractions are combined , Get extract B;
[0176] (3) Combine the above extraction solution A and extraction solution B, concentrate to a thick paste with a relative density of 1...
Embodiment 2
[0177] Example 2 Determination of Limonene by Chemical Bonded Phase Chromatography
[0178] In this embodiment, the chemical bonding phase chromatography method for determining the content of limonene includes the following steps:
[0179] (1) Take 2.5g of the drug preparation to be tested, add 50mL of 100% methanol, weigh, ultrasonic for 30min, let cool, weigh again, make up the lost weight with methanol, shake well, filter, and take the filtrate as the test product Solution
[0180] (2) Take an appropriate amount of limonene reference substance and add 100% methanol to make a solution containing 0.1 μL of limonene per 1 mL of methanol as the reference substance solution;
[0181] (3) Chromatographic conditions: 250×4.6mm, 5μm Welch Ultimate LP-C18 as the chromatographic column, with three silyl hydroxyl bonds and one C18 bonded octadecylsilane bonded silica as the stationary phase, Use acetonitrile:water=70:30 as mobile phase, time: 30min, column temperature: 10-30℃, detection wa...
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