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Method for determining pinoresinol diglucoside in eucommia ulmoides

A technology of pinoresinol diglucoside and methanol, applied in the field of chemical detection, can solve problems such as pressure failure and easy blockage, and achieve the effect of accurate measurement

Inactive Publication Date: 2018-06-15
WUZHOU INST FOR FOOD & DRUG CONTROL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the use of this method, the jelly in the Eucommia extract can easily block the filter of the static extraction valve, causing pressure failure

Method used

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  • Method for determining pinoresinol diglucoside in eucommia ulmoides
  • Method for determining pinoresinol diglucoside in eucommia ulmoides
  • Method for determining pinoresinol diglucoside in eucommia ulmoides

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Embodiment 1

[0026] Step 1: Take a sample of Eucommia ulmoides, cut it into pieces, crush it, pass through a No. 3 sieve, take about 1g, weigh it accurately, add diatomaceous earth in a ratio of 1:1 by weight, mix well, and put it in a 10ml extraction pool (sample loading Add an appropriate amount of diatomaceous earth to the bottom of the extraction pool before loading, and fill the extraction pool with diatomaceous earth after loading the sample).

[0027] Step 2: Put it in a Soxhlet extractor, add methanol, heat and reflux for 6 hours, discard the methanol extract, continue static extraction with methanol, recover the methanol extract into a 50ml measuring bottle, add methanol to the mark, shake well, filter After that, get the continued filtrate to obtain the methanol extract, and the equipment is the ASE350 fast solvent extractor of the U.S. DIONEX company;

[0028] Among them, the parameters for static extraction of methanol are as follows: extraction temperature is 100°C, extraction...

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Abstract

The invention discloses a method for determining pinoresinol diglucoside in eucommia ulmoides, belongs to the field of chemical detection, and aims to provide the method for determining the pinoresinol diglucoside in the eucommia ulmoides, wherein the method has an impurity-removing step same as that of the pharmacopoeia, only uses ASE to replace the extraction process to shorten the pretreatmenttime, and at the same time ensures the accuracy of the determination. A crushed eucommia ulmoides sample is extracted by an ASE extraction method, wherein the ASE extraction method includes methanol extraction in a Soxhlet extractor, methanol extraction in a rapid solvent extraction apparatus, and collection of a methanol extract; a HPLC method is used to detect the pinoresinol diglucoside in themethanol extract. The method is used for determination of the pinoresinol diglucoside in the eucommia ulmoides.

Description

technical field [0001] The invention belongs to the field of chemical detection, in particular to a method for measuring pinoresinol diglucoside in Eucommia ulmoides. Background technique [0002] "Chinese Pharmacopoeia" 2015 Edition Part One The method for preparing the test product is: take about 3g of this product, cut it into pieces, knead it into flocs, take about 2g, weigh it accurately, put it in a Soxhlet extractor, add an appropriate amount of methanol, and heat Reflux for 6 hours, discard the methanol liquid, evaporate the methanol from the dregs, put it in a Soxhlet extractor, add an appropriate amount of methanol, heat and reflux for 6 hours, recover the methanol to an appropriate amount from the extract, transfer it to a 10ml measuring bottle, add methanol to the mark, Shake well, filter, and take the continued filtrate, that is. The extraction time of this method is as long as 12 hours, and the operation is very inconvenient. [0003] The method for preparing...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
Inventor 陈学松钟水桥梁峰
Owner WUZHOU INST FOR FOOD & DRUG CONTROL
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