Method for detecting hooker winghead root medicinal materials
A detection method and technology of herbal materials, applied in the direction of measuring devices, material separation, and analysis of materials, etc., can solve problems such as lack of unified standards and complex components, and achieve good stability and reproducibility, high detection efficiency, and similarity high effect
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Embodiment 1
[0029] Example 1: UFLC detection method of the Tibetan medicine Pterostellaris (external standard method)
[0030] (1) Preparation of the test solution: Take 0.5g of Pterostella herb powder, weigh it accurately, place it in a 100mL conical flask, add 50mL of 70% methanol solution, weigh it, and ultrasonically treat it (power: 200W, frequency : 40kHz) for 30min, put it to room temperature, weigh again, make up the lost weight with 70% methanol solution, filter through a 0.22μm microporous membrane, and take the subsequent filtrate to obtain the final product.
[0031] (2) Preparation of the reference substance solution: Preparation of the reference substance solution: Accurately weigh 10 mg of the reference substance of chlorogenic acid, loganin, swertiroside, rutaecarina, and bissenside A, add methanol to dissolve and determine Volume to 25mL, as the reference substance stock solution. Precisely draw an appropriate amount of the above-mentioned reference substance stock solut...
Embodiment 2
[0035] Example 2: UFLC detection method of Tibetan medicine pterygium (fingerprint comparison method of reference substance)
[0036] (1) Preparation of the test solution: Take 0.5g of Pterostella herb powder, weigh it accurately, place it in a 100mL conical flask, add 50mL of 70% methanol solution, weigh it, and ultrasonically treat it (power: 200W, frequency : 40kHz) for 30min, put it to room temperature, weigh again, make up the lost weight with 70% methanol solution, filter through a 0.22μm microporous membrane, and take the subsequent filtrate to obtain the final product.
[0037] (2) Preparation of the reference substance solution: Preparation of the reference substance solution: Accurately weigh 10 mg of the reference substance of chlorogenic acid, loganin, swertiroside, rutaecarina, and bissenside A, add methanol to dissolve and determine Volume to 25mL, as the reference substance stock solution. Precisely draw an appropriate amount of the above-mentioned reference su...
Embodiment 3
[0041] Example 3: UFLC detection method of Tibetan medicine pterygium (standard fingerprint comparison method)
[0042] (1) Preparation of the test solution: Take 0.5g of Pterostella herb powder, weigh it accurately, place it in a 100mL conical flask, add 50mL of 70% methanol solution, weigh it, and ultrasonically treat it (power: 200W, frequency : 40kHz) for 30min, put it to room temperature, weigh again, make up the lost weight with 70% methanol solution, filter through a 0.22μm microporous membrane, and take the subsequent filtrate to obtain the final product.
[0043] (2) Accurately draw 4 μL of the test product solution, inject it into the chromatograph, and perform detection under the following chromatographic conditions, and then compare the obtained fingerprint of the test product with figure 2 By comparing the standard fingerprints shown, and calculating the similarity, the detection of the Pterosphataceae medicinal material to be tested can be realized. If the simil...
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