Extraction and Determination of Quercetin and Myricetin from Chamaecyparis obtusa by Ionic Liquids-based Monolithic Cartridge

A short ionic liquids （ILs）-based monolithic cartridge was prepared and used as the selective extraction sorbent. After the material was evaluated by field emission-scanning electron microscopy （FE-SEM）, a new approach for the extraction and determination of quercetin and myricetin from Chamaecypari...

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Bibliographic Details
Published in:Chinese journal of chemistry 2011-08, Vol.29 (8), p.1759-1763
Main Author: 朱涛 毕文韬 卢敬昊
Format: Article
Language:English
Subjects:
extraction
ionic liquids
monolithic
myricetin
quercetin
单片
场发射扫描电子显微镜
墨盒
杨梅
槲皮素
离子液体
红桧
选择性提取
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Summary:A short ionic liquids （ILs）-based monolithic cartridge was prepared and used as the selective extraction sorbent. After the material was evaluated by field emission-scanning electron microscopy （FE-SEM）, a new approach for the extraction and determination of quercetin and myricetin from Chamaecyparis obtusa （C. obtusa） by using ILs-based, monolithic cartridge system was developed. Chromatographic analysis was conducted on a C18 column with UV detection at 372 nm, an eluting solution consisting of acetonitrile-water （25/75, V/V） as the mobile phase, and a flow rate of 0.7 mLomin 1. A good linear relationship was demonstrated when the concentrations of quercetin and myricetin were in the range of 0.5--100.0 ggomL-1. The recoveries ranged from 101.6% to 104.6% and the inter- and intra-day relative standard deviations （RSD） were less than 5.0%. This method effectively removed the impurities and avoided tedious pretreatment. It provided a fast, economic and effective method for assaying trace drugs from natural plants.
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.201180280