جداسازي ، شناسايي و اندازه گيري سموم فنيترويتون و بوتاكلر در مرداب انزلي به روش GC/MSSION TRAP

GC/IY1S analysis of fenitrothion and butachlor in Anzali wetland water

Fenitrothion (C9llpNOsPS) and butachlor (Cl7H26ClNO,) are widely used in agricultural fields as pesticidcs.Liquid-liquid extraction (L.L.E) with dichloromethane ,liquid liquid microextraction and C18 solid phase extraction (SPE) techniques are used for extractin of liquid samples.The samples are analyzed by GC/MS-E1 .GC/MS-C1 and selected ion monitoring (SIM) mode for quantitation.The limit of detection (LOD) is 10 ng/1 with sim mode at m/ v. 125 fenitrothion and 15 ng/1 at m/z 176 butachlor .The relative standard deviation for fenitrothion and butachlor is 3,5 and 8.5 % respectively (n=5).The concentration of fenitrothion and butachlor in September was higher compared to December and April 2001.