主题：【求助】（还剩1和3）求4篇英文文献

1.【作者】Schenck, Frank J.; Wong, Jon W.

【标题】Determination of pesticides in food of vegetal origin

【出版社】Analysis of Pesticides in Food and Environmental Samples

【出版日期】2008

2.【作者】Tuan SJ (Tuan, Shu-Jen), Tsai HM (Tsai, Hsiu-Mei), Hsu SM (Hsu, Shang-Mei), Li HP (Li, Hong-Ping)

【标题】Multiresidue Analysis of 176 Pesticides and Metabolites in Pre-harvested Fruits and Vegetables for Ensuring Food Safety by Gas Chromatography and High Performance Liquid Chromatography

【出版社】JOURNAL OF FOOD AND DRUG ANALYSIS   

【出版日期】2009

3.【作者】Gutierrez JA (Gutierrez, Jorge A.), Londono A (Londono, Alfonso)

【标题】Organophosphorus and organochlorine pesticide''''''''''''''''s determination in tomatoes from Armenia and Pereira cities local market: Colombia

【出版社】BOLETIN LATINOAMERICANO Y DEL CARIBE DE PLANTAS MEDICINALES Y AROMATICAS

【出版日期】2009

4.【作者】 Kin, CM; Huat, TG

【标题】Comparison of HS-SDME with SPME and SPE for the Determination of Eight Organochlorine and Organophosphorus Pesticide Residues in Food Matrices

【出版社】JOURNAL OF CHROMATOGRAPHIC SCIENCE 

【出版日期】2009

谢谢各位！