Method for identifying radix rosae gigantea extract
A technology for the root and extract of G. kung fu, which is applied in the field of identification of G. kung fu root extracts, can solve problems such as difficulty, instability, and incomplete quality control methods
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Embodiment 1
[0029] Embodiment 1: A kind of identification method of the root extract of Gongguo
[0030]1. Instruments and reagents
[0031] 1.1 Instrument
[0032] Shimadzu high performance liquid chromatograph (LC-20AT double pump, SPD-M20AUV detector, CTO-20A column thermostat, Japan Shimadzu Corporation), SHIMADZU VP-ODS column (250×4.60mm, 5micron).
[0033] 1.2 Reagent
[0034] The catechin reference substance was provided by SIGMA Company; the methanol, ethanol, hydrochloric acid, glacial acetic acid, etc. used for extraction were all analytically pure; the methanol and acetonitrile used for liquid phase analysis were all chromatographically pure. Gugu root is collected from Yunnan Province, self-made extract, batch number: 20050918, 20051009, 20061123, 20061128, 20071021, 20071029.
[0035] 2. Methods and Results
[0036] Selection of chromatographic column: Under the same chromatographic conditions, we investigated: Ultimate XB-C18 (150mm×4.6mm, 5μm) column, SHIMADZU VP-ODS c...
Embodiment 2
[0065] A method for identifying the root extract of G. quinquefolius, comprising the steps of:
[0066] The first step is to establish the standard fingerprint of phenolic acid components, the method is as follows:
[0067] (a) Preparation of the test solution: the establishment of the standard fingerprint of the fruit root extract (batch number 20051009)
[0068] The procedure is the same as 3.1 in Example 1, the difference is that in the extraction conditions, add 10 times the volume fraction of the medicinal materials in a methanol solution containing 80% volume fraction, shake, soak and extract for 12 hours, filter, combine the extracts, and depressurize at 60°C Dried to dryness to obtain the root extract of the fruit. Then methanol was dissolved and diluted to configure a 5mg / mL test solution.
[0069] (b) Preparation of the reference substance solution: accurately weigh the reference substance catechin, dissolve and dilute it with methanol as a volume fraction, and con...
Embodiment 3
[0074] A method for identifying the root extract of G. quinquefolius, comprising the steps of:
[0075]The first step is to establish the standard fingerprint of phenolic acid components, the method is as follows:
[0076] (a) Preparation of the test solution: the establishment of the standard fingerprint of the fruit root extract (batch number 20051009)
[0077] Establishment of Standard Fingerprint Spectrum of G. quinquefolium Root Extract (Lot No. 20051009)
[0078] The procedure is the same as 3.1 in Example 1, the difference is that in the extraction conditions, add 10 times the volume fraction of the medicinal materials in a methanol solution containing 80% volume fraction, shake, soak and extract for 12 hours, filter, combine the extracts, and depressurize at 60°C Dried to dryness to obtain the root extract of the fruit. Then dissolve and dilute with ethanol to configure a 20mg / mL test solution.
[0079] (b) Preparation of the reference substance solution: accurately...
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