主题：【已应助】请帮忙查几篇英文文献，谢谢

【序号】：6
【作者】：Li-Wen Chung and Maw-Rong Lee     
【题名】：Evaluation of liquid-phase microextraction conditions for determination of chlorophenols in environmental samples using gas chromatography–mass spectrometry without derivatization
【期刊】：Talanta 
【年、卷、期、起止页码】： Volume 76, Issue 1, 30 June 2008, Pages 154-160

【序号】：7
【作者】：Nazir Fattahi, Soheila Samadi, Yaghoub Assadi     
【题名】：Solid-phase extraction combined with dispersive liquid–liquid microextraction-ultra preconcentration of chlorophenols in aqueous samples
【期刊】：Journal of Chromatography A
【年、卷、期、起止页码】： Volume 1169, Issues 1-2, 26 October 2007, Pages 63-69

【序号】：8
【作者】：Hui Xu, Ying Liao and Jinrong Yao   
【题名】：Development of a novel ultrasound-assisted headspace liquid-phase microextraction and its application to the analysis of chlorophenols in real aqueous samples
【期刊】：Journal of Chromatography A
【年、卷、期、起止页码】： Volume 1167, Issue 1, 5 October 2007, Pages 1-8

【序号】：9
【作者】：Nazir Fattahi, Yaghoub Assadi, Mohammad Reza   
【题名】：Determination of chlorophenols in water samples using simultaneous dispersive liquid–liquid microextraction and derivatization followed by gas chromatography-electron-capture detection
【期刊】：Journal of Chromatography A
【年、卷、期、起止页码】： Volume 1157, Issues 1-2, 20 July 2007, Pages 23-29

【序号】：10
【作者】：Natalia Campillo, Rosa Peñalver   
【题名】：Evaluation of solid-phase microextraction conditions for the determination of chlorophenols in honey samples using gas chromatography
【期刊】：Journal of Chromatography A
【年、卷、期、起止页码】：Volume 1125, Issue 1, 25 August 2006, Pages 31-37