Finger-print spectrum construction method and quality detection method of chrysanthemum cell-disruption decoction pieces
A technology of broken-walled decoction pieces and fingerprints, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of incomplete reflection of the quality of decoction pieces, specificity, stability, reproducibility, and poor precision, and achieve simple operation , Detection of fast and accurate results
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experiment approach 1
[0031] Preliminary experiment plan 1 Sample preparation: accurately weigh 0.5146g of chrysanthemum broken wall pieces, add 25ml of 75% methanol, weigh it, and ultrasonically extract for 40min, take it out, cool to room temperature, add weight with extraction solvent, coarse filter, and use 0.22um micro Filter through the pore membrane, take the filtrate, and get it. Chromatographic conditions: Waters Symmetry C18 column (250mmx4.6mm, 5um); mobile phase is acetonitrile-0.5% phosphoric acid aqueous solution, gradient elution: 0min-1min-18min-32min-55min-75min, acetonitrile changes 5%-10%- 18%-18%-25%-45%; flow rate 1ml / min; column temperature 35°C; detection wavelength 268, 351, 210nm; injection volume 10ul.
experiment approach 2
[0032] Preliminary experiment plan 2 Sample preparation: accurately weigh 0.5146g of broken chrysanthemum decoction pieces, add 25ml of 75% methanol, weigh it, ultrasonically extract for 40min, take it out, cool to room temperature, add weight with extraction solvent, coarse filter, 0.22um micro Filter through the pore membrane, take the filtrate, and get it. Chromatographic conditions: Waters Symmetry C18 column (4.6x250mm, 5um); mobile phase is acetonitrile-0.5% phosphoric acid aqueous solution, gradient elution: 0min-50min-100min, acetonitrile change: 10%-25%-60%; detection wavelength 268, 351, 210nm; flow rate 1ml / min; column temperature 30°C; injection volume 10ul.
experiment approach 3
[0033] Preliminary experiment plan 3 Sample preparation: Precisely take 0.5146g of broken wall decoction pieces, add 25ml of 75% methanol, weigh it, ultrasonically extract for 40min, take it out, cool to room temperature, add weight with extraction solvent, coarse filter, 0.22um microporous filter Membrane filtration, take the continuous filtrate, and get it. Chromatographic conditions: Waters Symmetry C18 column (250nmx4.6nm, 5um); mobile phase is acetonitrile-0.5% phosphoric acid aqueous solution, gradient elution: 0min-60min, acetonitrile change 5%-95%; flow rate 1ml / min; column temperature 35 ℃; detection wavelength 268, 351, 210nm; injection volume 10ul.
[0034] Preliminary experiment 4 sample preparation: accurately weigh about 0.5146g of broken chrysanthemum decoction pieces, add 25ml of 75% methanol, weigh it, ultrasonically extract for 40min, take it out, cool to room temperature, add weight with extraction solvent, filter coarsely, use 0.22um micro Filter through the ...
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