A HPLC fingerprint of Zhideke Granules and its quality analysis method
A fingerprint and particle technology, applied in the direction of analyzing materials, measuring devices, material separation, etc., can solve the problems of limited research, and achieve the effect of good reproducibility, high precision and good stability
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Embodiment 1
[0029] A HPLC fingerprint of Zhideke granules, the construction method of which specifically comprises the following steps:
[0030] (1): Make the Zhideke Granules into a sample to be tested according to the following extraction method, and set aside; the extraction method is: take the Zhideke Granules, add pure water precisely, put it in an ultrasonic instrument for quantitative extraction for 25 minutes, and take out Let cool to room temperature, use pure water to make up for weight loss, at 12000r·min -1 Centrifuge for 10 minutes, and filter the supernatant with a 0.45 μm microporous membrane, which is the sample to be tested for later use; the mass ratio of Zhideke granules to pure water is 2.0:9;
[0031] (2): Accurately weigh the reference substances baicalin, irisflavin, wogonin, and saikosaponin d, respectively, and add methanol to prepare a mixed reference solution. The mixed reference solution includes a concentration of 0.371 mg·mL -1 Baicalin, the concentration is...
Embodiment 2
[0035] A HPLC fingerprint of Zhideke granules, the construction method of which specifically comprises the following steps:
[0036](1): Make the Zhideke Granules into the sample to be tested according to the following extraction method, and set aside; the extraction method is: take the Zhideke Granules, add pure water precisely, put it in an ultrasonic instrument for quantitative extraction for 30 minutes, and take out Let cool to room temperature, use pure water to make up for weight loss, at 13000r·min -1 Centrifuge for 12 minutes, and filter the supernatant with a 0.45 μm microporous membrane, which is the sample to be tested for later use; the mass ratio of Zhideke granules to pure water is 2.0:10;
[0037] (2): Accurately weigh the reference substances baicalin, irisflavin, wogonin, and saikosaponin d respectively, and add methanol to prepare a mixed reference solution. The mixed reference solution includes a concentration of 0.3 mg·mL -1 Baicalin, the concentration is ...
Embodiment 3
[0041] A HPLC fingerprint of Zhideke granules, the construction method of which specifically comprises the following steps:
[0042] (1): Make the Zhideke granule into a sample to be tested according to the following extraction method, and set it aside; the extraction method is: take the Zhideke granule, add pure water precisely, put it in an ultrasonic instrument for quantitative extraction for 28 minutes, and take out Let cool to room temperature, use pure water to make up for weight loss, at 12500r·min -1 Centrifuge for 11 minutes, and filter the supernatant with a 0.45 μm microporous membrane, which is the sample to be tested for use; the mass ratio of Zhideke granules to pure water is 2.0:9.5;
[0043] (2): Accurately weigh the reference substances baicalin, irisflavin, wogonin, and saikosaponin d, respectively, and add methanol to prepare a mixed reference solution. The mixed reference solution includes a concentration of 0.5 mg·mL -1 Baicalin, the concentration is 0.02...
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