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Method for identifying cynanchum komarovii in radix et rhizoma cynanchi atrati

A technology of Laoguatou and Baiwei, which is applied in the field of chemical detection, can solve the problems such as the inability to identify Baiwei, and achieve the effect of easy judgment, clear results and simple steps

Active Publication Date: 2018-11-23
SHANDONG INST FOR FOOD & DRUG CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problem in the prior art that the old melon head is mixed in the Bai Wei, the present application provides a simple, fast and efficient method for identifying whether the old melon head is mixed in the Bai Wei

Method used

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  • Method for identifying cynanchum komarovii in radix et rhizoma cynanchi atrati
  • Method for identifying cynanchum komarovii in radix et rhizoma cynanchi atrati
  • Method for identifying cynanchum komarovii in radix et rhizoma cynanchi atrati

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Embodiment 1

[0037] 1 Instruments and reagents

[0038] Instrument: Sartorius CP225D electronic balance; Shimadzu LC-20A high performance liquid chromatography (diode array detector); reference substance and source: self-made; reagents: methanol is chromatographically pure, water is purified water prepared by Millipore, and other reagents are Analytical pure.

[0039] 2 Chromatographic conditions

[0040] 2.1 Preparation of reference solution

[0041] Take about 0.4g of old melon head powder, add 30ml of methanol, ultrasonic for 30min, filter, evaporate to dryness, add 2ml of methanol to the residue to dissolve, filter through a 0.45μm microporous membrane, and purify by semi-preparative HPLC, the chromatographic column is octadecane Based on silane-bonded silica gel, the mobile phase is methanol-0.1% phosphoric acid solution, the volume ratio is 30:70, after detecting all the eluents at 325nm, it is determined to collect the eluents with a retention time of 15.7-15.9 minutes, and concen...

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Abstract

The invention relates to the technical field of chemical detection, in particular to a method for identifying cynanchum komarovii in radix et rhizoma cynanchi atrati: positioning with a spectrum of reference sample, if a spectrum of sample to be tested and the spectrum of the reference sample do not have a chromatographic peak with the same retention time, the sample to be tested does not containcynanchum komarovii; if the spectrum of the sample to be tested and the spectrum of the reference sample have a chromatographic peak with the same retention time, the sample to be tested contains thecynanchum komarovii. The method provided by the invention successfully solves the problem of no method for detecting whether the cynanchum komarovii is added in decoction pieces or powder of radix etrhizoma cynanchi atrati illegally in the prior art; the method is simple in operation and procedures; the results are clear and easy to judge.

Description

technical field [0001] The invention relates to the technical field of chemical detection, in particular to a method for identifying whether there is old melon head mixed in Bai Wei. Background technique [0002] Baiwei is a plant of the Radish family, Baiwei ( Cynanchum atratum Bge.) or creeping white myrtle ( Cynanchum versicolor The dry roots and rhizomes of Bge.) have the effects of clearing away heat and cooling blood, promoting diuresis and treating stranguria, detoxifying and treating sores. Traditional Chinese medicine is used for warming evil and hurting camp fever, fever due to yin deficiency, bone steaming labor heat, postpartum blood deficiency fever, hot stranguria, Bloody stranguria, carbuncle and swollen poison. [0003] Through research on the medicinal material market, it was found that most of the Baiwei sold in the market is the old melon head of the Radixaceae plant ( Cynanchum komarovii Al. Iljinski) dry roots and rhizomes (called Laoguatou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 穆向荣郭东晓林林林永强徐丽华
Owner SHANDONG INST FOR FOOD & DRUG CONTROL