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一种使用固相微萃取-高效液相色谱-紫外/可见系统测定葡萄、蔬菜和红酒样品中杨梅素和槲皮素的新方法。

A new method for determination of myricetin and quercetin using solid phase microextraction-high performance liquid chromatography-ultra violet/visible system in grapes, vegetables and red wine samples.

作者信息

Kumar Ashwini, Malik Ashok Kumar, Tewary Dhananjay Kumar

机构信息

Department of Chemistry, Punjabi University, Patiala 147 002, India.

出版信息

Anal Chim Acta. 2009 Jan 12;631(2):177-81. doi: 10.1016/j.aca.2008.10.038. Epub 2008 Nov 1.

DOI:10.1016/j.aca.2008.10.038
PMID:19084623
Abstract

A new approach for the extraction and determination of myricetin and quercetin by using SPME-HPLC-UV system has been developed. The method involves adsorption of flavonoids on CAR/TPR fiber followed by desorption in the desorption chamber of SPME-HPLC interface using citrate buffer (0.001 M):acetonitrile (70:30) as mobile phase and UV detection at 372 nm. The detection limits for myricetin and quercetin are 48.3 and 24.7 pgmL(-1), respectively. The proposed method was validated by determining myricetin and quercetin in tomato, onion, grapes and red wine samples.

摘要

已开发出一种使用固相微萃取-高效液相色谱-紫外检测系统提取和测定杨梅素与槲皮素的新方法。该方法包括将黄酮类化合物吸附在CAR/TPR纤维上，随后在固相微萃取-高效液相色谱接口的解吸室中进行解吸，使用柠檬酸盐缓冲液（0.001 M）：乙腈（70:30）作为流动相，并在372 nm处进行紫外检测。杨梅素和槲皮素的检测限分别为48.3和24.7 pgmL(-1)。通过测定番茄、洋葱、葡萄和红酒样品中的杨梅素和槲皮素，对所提出的方法进行了验证。

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