4-H-Celastrus angulatus original medicine and preparation method and quality detection method thereof
A quality detection method, the technology of picroderm, applied in the field of botanical pesticides
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[0123] iv) Preparation of test solution
[0124] Accurately weigh 200 mg of 4-H-piculin or 4-H-piculin aqueous emulsion in a 100mL volumetric flask, add appropriate amount of methanol to dissolve, dilute to the mark after ultrasonic oscillation, and shake well to obtain 4- H-picterine original medicine or 4-H-pichortine water emulsion for testing solution.
[0125] v) Precision determination
[0126] The test solution was injected three times, the relative standard deviation of the peak area was RSD=1.66%, and the relative standard deviation of the retention time was RSD=0.35%.
[0127] vi) Determination of the test product
[0128] Draw each test solution, inject sample, measure its peak area, obtain Angulateoid C content.
[0129] vii) Determination of recovery rate
[0130] Using the standard addition method, 100 μg / mL was added to the test sample 1, the average recovery rate was 102.3%, and the RSD was 2.12%.
[0131] ②Angulateoid C absolute content calculation
[01...
Embodiment 1
[0251] (1) The preparation method of 4-H-picterine original drug A
[0252] Add 3:3:3 times the volume of petroleum ether to the Hubei Enshi (2010) bitter vine seeds (24 mesh) that meet the requirements after sieving, and reflux extraction at 80°C for 3 times, each time for 2 hours , filtered, combined three filtrates, and concentrated under reduced pressure to seed oil. Take this oil, pack it into a column (diameter-to-height ratio: 10:1) with its weight of 1 times the amount of HP20 resin, and successively wash the column with 40% ethanol, 60% ethanol, 80% ethanol and 95% ethanol (the The volume of ethanol was 40, 90, 40 and 20 times that of the filtrate after concentration), and the 60% ethanol eluate was collected and evaporated to dryness under reduced pressure to obtain the original drug A of 4-H-pichoretine.
[0253]
[0254] (2) Quality testing method of 4-H-picterine original drug A
[0255] ①Preparation of characteristic extracts
[0256] Take 4-H-picterine ori...
Embodiment 2
[0269] (1) The preparation method of the original drug B of 4-H-piculin
[0270] After sieving, the seeds (24 mesh) of Phyllostachys chinensis (2011) that met the requirements were added to ethanol with a volume of 3︰2︰2 times and a mass ratio of 95%, and reflux extraction at 60°C for 3 times. Extract each time for 1.5h, filter, combine three filtrates, and concentrate under reduced pressure to seed oil. Take this kind of oil, use its weight as 1.2 times the amount of D-101 resin to pack into a column (diameter-to-height ratio 10:1), and successively wash the column with 35% ethanol, 65% ethanol, 80% ethanol and 90% ethanol (punch column 40, 90, 40 and 20 times the volume of the ethanol after concentrating the filtrate respectively), collect the 65% ethanol eluate, and evaporate to dryness under reduced pressure to obtain the original drug B of 4-H-pichoretine.
[0271]
[0272] (2) 4-H-Pictericillin Technical B quality testing method
[0273] ①Preparation of characterist...
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