Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for measuring content of protocatechuic acid in jasminum elongatum

A method for measuring protocatechuic acid, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as the lack of a better method for determining the content of protocatechuic acid in Twister vine, and achieve good recovery rate and high accuracy , The method is simple and easy to operate

Inactive Publication Date: 2017-05-17
GUANGDONG SECOND TRADITIONAL CHINESE MEDICINE HOSPITAL (GUANGDONG PROVINCE ENG TECH RES INST OF TCM) +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no better method for the determination of protocatechuic acid in Twister

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for measuring content of protocatechuic acid in jasminum elongatum
  • Method for measuring content of protocatechuic acid in jasminum elongatum
  • Method for measuring content of protocatechuic acid in jasminum elongatum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Example: such as Figure 1 to Figure 4 Shown, the content assay method of protocatechuic acid in a kind of twist tripe vine of the present invention, it comprises the following steps:

[0034] (1) Preparation of reference substance solution: take an appropriate amount of protocatechuic acid reference substance, accurately weigh it, put it in a 25ml brown measuring bottle, dissolve it with methanol and dilute to the mark, shake well to obtain a concentration of 0.278mg·ml -1 The reference substance solution;

[0035] (2) Preparation of the test solution: get 2 g of the medicinal material powder of twig vine, accurately weighed, put in a 50 ml conical flask with a stopper, add 20 ml of methanol accurately, accurately weigh, ultrasonically extract (power 100W, frequency 50Hz) for 30min , let cool, accurately weighed, make up the reduced weight with methanol, shake well, filter with a 0.22 μm microporous membrane, and take the continued filtrate as the test solution of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for measuring the content of protocatechuic acid in jasminum elongatum. The method includes steps of (1), preparing reference solution; (2), preparing test solution; (3), investigating linear relations; (4), carrying out precision tests. The method has the advantages that the method is simple and is easy to implement, good in precision and repeatability, high in accuracy and excellent in recycling rate, and the content of the protocatechuic acid in the jasminum elongatum can be quickly and accurately measured by the aid of the method.

Description

technical field [0001] The invention relates to the field of measurement of traditional Chinese medicines, in particular to a method for determining the content of protocatechuic acid in twig vine. Background technique [0002] Twisted vine is recorded in "Guangdong Provincial Standards of Chinese Medicinal Materials" (Volume 1), and it is the dried stem and leaf of Oleaceae plant Twisted vine. It is also known as Qingtengzaihua, Zuo twisting vine, Xie Sanniang, Maomao tea, and broken bone grass. Because its flowers are white and resemble jasmine flowers, it is also called white flower tea and false jasmine. It grows in hillsides, riversides, bushes and mixed forests, and is mainly distributed in Guangdong, Hainan, Guangxi, Yunnan and other places. [0003] According to reports in the literature, Twister contains protocatechuic acid, caffeic acid, salicylic acid, vanillic acid, ferulic acid, methyl caffeate, caffeine, 3,6-diisopropylpiperazin-2,5-dione, scopolamine There a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N30/02
CPCG01N30/02
Inventor 孙冬梅胥爱丽毕晓黎罗文汇陈昭李素梅李养学江洁怡陈伟韬
Owner GUANGDONG SECOND TRADITIONAL CHINESE MEDICINE HOSPITAL (GUANGDONG PROVINCE ENG TECH RES INST OF TCM)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com