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J Chromatogr A

Title:		Water-based gas purge microsyringe extraction coupled with liquid chromatography for determination of alkylphenols from sea food Laminaria japonica Aresh
Author(s):		Yang C; Zhao J; Wang J; Yu H; Piao X; Li D;
Address:		"Key Laboratory of Nature Resource of the Changbai Mountain and Functional Molecular, Yanbian University, Ministry of Education, Park Road 977, Yanji City, Jilin Province 133002, China"
Journal Title:		J Chromatogr A
Year:		2013
Volume:		20130306
Issue:
Page Number:		38 - 42
DOI:		10.1016/j.chroma.2013.02.087
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"A novel organic solvent-free mode of gas purge microsyringe extraction, termed water-based gas purge microsyringe extraction, was developed. This technique can directly extract target compounds in wet samples without any drying process. Parameters affecting the extraction efficiency were investigated. Under optimal extraction conditions, the recoveries of alkylphenols were between 87.6 and 105.8%, and reproducibility was between 5.2 and 12.1%. The technique was also used to determine six kinds of alkylphenols (APs) from samples of Laminaria japonica Aresh. The OP and NP were detected in all the samples, and concentrations ranged from 26.0 to 54.5ngg(-1) and 45.0-180.4ngg(-1), respectively. The 4-n-butylphenol was detected in only one sample and its concentration was very low. Other APs were not detected in L. japonica Aresh samples. The experimental results demonstrated that the technique is fast, simple, non-polluting, allows for quantitative extraction, and a drying process was not required for wet samples. Since only aqueous solution and a conventional microsyringe were used, this technique proved affordable, efficient, and convenient for the extraction of volatile and semivolatile ionizable compounds"
Keywords:		"Chromatography, High Pressure Liquid/*methods Hydroxides Laminaria/*chemistry Limit of Detection Linear Models Liquid Phase Microextraction/instrumentation/*methods Phenols/*analysis/chemistry/isolation & purification Potassium Compounds Reproducibility o;"
Notes:		"MedlineYang, Cui Zhao, Jinhua Wang, Juan Yu, Hongling Piao, Xiangfan Li, Donghao eng Research Support, Non-U.S. Gov't Netherlands 2013/04/06 J Chromatogr A. 2013 Jul 26; 1300:38-42. doi: 10.1016/j.chroma.2013.02.087. Epub 2013 Mar 6"