主题：【已应助】求4篇英文文献，谢 谢！！

【序号】： 1
【作者】：Shayessteh Dadfarnia, Ali Mohammad Haji Shabani
【题名】：Recent development in liquid phase microextraction  for determination of trace level concentration of metals—A review
【期刊】：Analytica Chimica Acta
【年、卷、期、起止页码】：2010, 658( 2):107-119
【全文链接】：http://www.ncbi.nlm.nih.gov/pubmed/20103083

【序号】： 2
【作者】：A. Aresta, D. Bianchi, C.D. Calvano, C.G. Zambonin
【题名】：【期刊】：Journal of Pharmaceutical and Biomedical Analysis
【年、卷、期、起止页码】：2010,  53( 3):440-444
【全文链接】：
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TGX-50393R4-2&_user=10&_coverDate=11%2F02%2F2010&_alid=1678852044&_rdoc=99&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5266&_sort=r&_st=4&_docanchor=&view=c&_ct=625&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=73fbfa4fba328b84f56584f935bd4cee&searchtype=a

【序号】：3
【作者】：Edmar Martendal, Eduardo Carasek
【题名】：A new approach based on a combination of direct and headspace cold-fiber solid-phase microextraction  modes in the same procedure for the determination of polycyclic aromatic hydrocarbons and phthalate esters in soil samples
【期刊】：Journal of Chromatography A
【年、卷、期、起止页码】：2011, 1218( 13):1707-1714
【全文链接】：
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TG8-522SHJR-7&_user=10&_coverDate=04%2F01%2F2011&_alid=1678852044&_rdoc=89&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5248&_sort=r&_st=4&_docanchor=&view=c&_ct=625&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=486cb106e758c0eb33fa9276184e2413&searchtype=a

【序号】：4
【作者】：Shiheng Chen, Hong Peng, Dapeng Wu, Yafeng Guan
【题名】：Temperature-controlled headspace liquid-phase microextraction  device using  volatile  solvents
【期刊】：Journal of Chromatography A
【年、卷、期、起止页码】：2010, 1217( 38):5883-5889
【全文链接】：
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TG8-50KC6R5-7&_user=10&_coverDate=09%2F17%2F2010&_alid=1678852044&_rdoc=88&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5248&_sort=r&_st=4&_docanchor=&view=c&_ct=625&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=40bb9d268eb49bdc032cd384baac018f&searchtype=a