Fingerprint of Cortex Periplocae and quality detection method for Cortex Periplocae
A technology of fingerprints and saponica bark, which is applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of too much loss of reagents, inability to represent the efficacy, toxicity, and adverse reactions of saponica bark
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Embodiment 1
[0111] (1) Preparation of reference substance solution
[0112] Take appropriate amount of reference substances of chlorogenic acid, 4-methoxysalicylaldehyde, and salicyloxin respectively, weigh them accurately, dissolve them in methanol, and shake them well to make the mass concentrations of 33.24mg L respectively. -1 , 161.1mg·L -1 , 96.80mg·L -1 The stock solution of the mixed reference substance was stored in a refrigerator at 4°C for use. Precisely measure 5mL of the stock solution of the mixed reference substance, put it in a 10mL measuring bottle, add methanol to dilute to the mark, shake well, and use it as a mixed reference solution for content determination. The mass concentration is 16.62mg·L -1 , 8.05mg·L -1 , 4.84mg·L -1 , stored in a 4°C refrigerator for later use.
[0113] (2) preparation of test solution
[0114] Persica persica samples (No. S5 sample in Table 1) were dried and crushed, and 0.25 g of each sample powder (passed through a No. 3 sieve) was ...
Embodiment 2
[0127] (1) Preparation of reference substance solution
[0128] Same as Example 1
[0129] (2) preparation of test solution
[0130]The Persica sinensis sample is No. H6 sample of table 1, and other parts are with embodiment 1.
[0131] (3) Determination and generation of control fingerprints
[0132] Draw and mix reference substance solution and need testing solution (H6), inject ultra-high performance liquid chromatograph, obtain chromatogram, according to chromatogram (see attached Figure 7 ) to calculate the content of the corresponding ingredients in the test product (see Table 8).
[0133] Table 8
[0134]
[0135] The chromatographic conditions are: WATERS ACQUITY UPLC BEH C 18 Chromatographic column (2.1 mm x 100 mm, 1.7 μm). The mobile phase is 0.2% phosphoric acid aqueous solution (A)-methanol (B); the gradient elution program is shown in Table 9. Flow rate 0.4mL·min -1 ; detection wavelength 225nm; column temperature 30°C; injection volume 0.5μL.
[013...
Embodiment 3
[0143] (1) Preparation of reference substance solution
[0144] Same as Example 1
[0145] (2) preparation of test solution
[0146] The Persica sinensis sample is No. H4 sample of table 1, and other parts are with embodiment 1.
[0147] (3) Determination and generation of control fingerprints
[0148] Draw and mix reference substance solution and need testing solution (H4), inject ultra-high performance liquid chromatograph, obtain chromatogram, according to chromatogram (see attached Figure 8 ) to calculate the content of the corresponding ingredients in the test product (see Table 11).
[0149] Table 11
[0150]
[0151]
[0152] The chromatographic conditions are: WATERS ACQUITY UPLC BEH C 18 Chromatographic column (2.1 mm x 100 mm, 1.7 μm). The mobile phase is 0.3% phosphoric acid aqueous solution (A)-methanol (B); the gradient elution program is shown in Table 12. Flow rate 0.4mL·min -1 ; Detection wavelength 225nm; Column temperature 33°C; Injection volum...
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