Quality detection method of compound donkey-hide gelatin slurry oral liquid
A quality testing method and technology for compound donkey-hide glue, which can be applied to measuring devices, instruments, scientific instruments, etc., and can solve the problems of unreasonable quality of traditional Chinese medicine compound preparations and no quantitative testing method for active chemical components.
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Embodiment 1
[0046] The quality detection of embodiment 1 Chinese medicine compound donkey-hide gelatin slurry oral liquid
[0047] 1. Experimental materials
[0048] (1) Preparation of the test solution: Take 5 batches of compound donkey-hide gelatin pulp oral liquid (110950, 1109511, 110952, 110953, 110954), remove the protein in the donkey-hide gelatin pulp according to the sample pretreatment method described in the technical plan, and centrifuge , static, centrifugal concentration, dilution and other steps for analysis;
[0049] (2) Preparation of standard products: Accurately weigh different amounts of chlorogenic acid, ergosteroside, isergosteroside, tangshenoside, baicalin, notoginsenoside R2, 20(S)-ginsenoside Rg2, 20( R)-ginsenoside Rg2, 20(S)-ginsenoside Rg3, and 20(R)-ginsenoside Rg3 were formulated into a mixed standard solution as shown in the table below.
[0050] Table 1 Standard solution (μg / mL)
[0051]
[0052]
[0053] (3) Preparation of internal standard solut...
Embodiment 2
[0067] Embodiment 2 Sensitivity experiment
[0068] Sensitivity experiments include the sensitivity of the instrument and the sensitivity of the method, which are expressed by the detection limit of the instrument and the quantification limit of the method, respectively.
[0069] Dilute HB-6 with 80% methanol-water 10 times, 30 times, 60 times, 120 times, 240 times, 360 times, 480 times respectively, according to the sample pretreatment method, add the dilution of HB-6 to the blank gel In the juice, after centrifugation, standing still, centrifugal concentration, dilution and other steps, sample analysis was carried out to determine the signal-to-noise ratio. The quantitation limit of the method.
Embodiment 3
[0070] Embodiment 3 accuracy and repeatability experiment
[0071] Take 4 sticks of compound donkey-hide gelatin oral liquid from the same batch and mix them. After ultrasonication for 20 minutes, accurately pipette 1 mL of oral liquid and 1 mL of blank gum juice. 40 μL of internal standard solution was processed according to the standard operation, and the sample was injected for analysis, and the recovery rate and relative standard deviation were calculated; the accuracy was expressed by the recovery rate, and the repeatability was expressed by the relative standard deviation.
[0072] For the sample pretreatment method and analysis method, to investigate the influence of the matrix on the analysis results, it is necessary to determine the extraction efficiency and matrix effect of the sample pretreatment. Three sets of standard stock solutions of high, medium and low concentrations were prepared respectively, and the recovered samples and matrix samples were prepared by add...
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