Method for distinguishing salvia miltiorrhiza medicinal material or derivative
A derivative, Danshen technology, applied in the field of identification of natural medicinal plants, can solve the problems of ionization degree and matrix interference, poor repeatability and feasibility, and difficult to analyze
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[0165] a) Preparation of Danshen medicinal material or decoction pieces for test solution
[0166] Accurately weigh the test product: 0.4~0.5g of the powder of Danshen medicinal material / decoction pieces, add 25mL of 75% methanol, heat to reflux for 1 hour, filter, and concentrate the filtrate to 1mL, and use it as the test solution of Danshen medicinal material or decoction pieces.
[0167] b) Preparation of the test solution of other Danshen derivatives
[0168] Accurately weigh the test product: 200mg of other Danshen derivatives (such as salvianolic acid extract) in a 100mL volumetric flask, add an appropriate amount of methanol (30-40mL) to dissolve, dilute to the mark after ultrasonic oscillation, and shake well to get other Danshen Derivatives test solution (such as salvianolic acid extract test solution).
[0169] iv) Assay
[0170] Accurately draw 20 μl each of the salvianolic acid B standard reference solution and the test solution containing salvianolic acid activ...
Embodiment 1
[0260] Example 1: Henan Luoyang Danshen medicinal material IGD carbon NMR fingerprint
[0261] (1) Preparation of characteristic extracts
[0262] Select Danshen medicinal material in Luoyang, Henan Province, and prepare Danshen medicinal material tanshinone and
[0263] Salvianolic acid characteristic extract:
[0264] 1) The preparation method of the characteristic extract of tanshinone is as follows: take the root and bark of Danshen that have been dried in the shade, pulverize, accurately weigh, and extract twice with 6 times the volume of 95v% ethanol under reflux, combine the filtrates, concentrate under reduced pressure, recover the solvent and evaporate Dried to powder, the 95v% ethanol extract of Salvia miltiorrhiza is obtained. Take the above powder (Salvia miltiorrhiza 95v% ethanol extract) and add 10 times the volume of ethyl acetate, ultrasonically extract at 55°C for 20 minutes, centrifuge, add 10 times the volume of ethyl acetate for precipitation, and ultraso...
Embodiment 2
[0291] Example 2: Central Plains Zhengxin Danshen Medicinal Material IGD Carbon NMR Fingerprint
[0292] (1) Preparation of characteristic extracts
[0293] Select the medicinal material of Danshen from Zhongyuan Zhengxin, and prepare the characteristic extracts of tanshinone and salvianolic acid from the medicinal material of Danshen according to the following method:
[0294] 1) The preparation method of the characteristic extract of tanshinone is as follows: take the root and skin of Danshen that have been dried in the shade, pulverize, accurately weigh, extract 3 times with 10 times the volume and 95v% ethanol, combine the filtrates, concentrate under reduced pressure, recover the solvent and evaporate to dryness To powder, the 95v% ethanol extract of Danshen medicinal material is obtained. Take the above powder (95v% ethanol extract of Salvia miltiorrhiza) and add 10 times the volume of ethyl acetate, reflux extraction at 75°C for 20 minutes, centrifuge, add 10 times the...
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