主题：【已应助】帮忙查几篇Science Direct的文献，在线等，急需，先谢了

文献求助格式不太符合要求，主要是有些急，来不及编辑，但标题完整，望见谅，
第一
Ultrasound-assisted ionic liquid dispersive liquid-phase micro-extraction: A novel approach for the sensitive determination of aromatic amines in water samples
Journal of Chromatography A, In Press, Accepted Manuscript, Available online 20 March 2009
Qingxiang Zhou, Xiaoguo Zhang, Junping Xiao
第二
Speciation of very low amounts of arsenic and antimony in waters using dispersive liquid-liquid microextraction and electrothermal atomic absorption spectrometry
Spectrochimica Acta Part B: Atomic Spectroscopy, In Press, Accepted Manuscript, Available online 20 March 2009  Ricardo E. Rivas, Ignacio López-García, Manuel Hernández-Córdoba
第三
Dispersive liquid–liquid microextraction preconcentration of palladium in water samples and determination by graphite furnace atomic absorption spectrometry
Talanta, Volume 77, Issue 5, 15 March 2009, Pages 1854-1857 Pei Liang, Ehong Zhao, Feng Li
第四
On-line sequential injection dispersive liquid-liquid microextraction system for flame atomic absorption spectrometric determination of copper and lead in water samples
Talanta, In Press, Accepted Manuscript, Available online 14 March 2009 DLLME-FAAS
Aristidis N. Anthemidis, Kallirroy-Ioanna G. Ioannou
第五
Extraction and determination of some psychotropic drugs in urine samples using dispersive liquid–liquid microextraction followed by high-performance liquid chromatography
Journal of Pharmaceutical and Biomedical Analysis, Volume 49, Issue 2, 20 February 2009, Pages 572-578
Chaomei Xiong, Jinlan Ruan, Yaling Cai, Ying Tang
第六
Determination of four heterocyclic insecticides by ionic liquid dispersive liquid–liquid microextraction in water samples
Journal of Chromatography A, Volume 1216, Issue 6, 6 February 2009, Pages 885-891
Yu Liu, Ercheng Zhao, Wentao Zhu, Haixiang Gao, Zhiqiang Zhou
第七
Novel method for the determination of five carbamate pesticides in water samples by dispersive liquid–liquid microextraction combined with high performance liquid chromatography
Chinese Chemical Letters, Volume 20, Issue 2, February 2009, Pages 213-216
Zhi Mei Liu, Xiao Huan Zang, Wei Hua Liu, Chun Wang, Zhi Wang
第八
Determination of cholesterol in food samples using dispersive liquid–liquid microextraction followed by HPLC–UV　Journal of Chromatography B, Volume 877, Issue 4, 1 February 2009, Pages 456-460
A. Daneshfar, T. Khezeli, H.J. Lotfi