Simultaneous capillary GC-MS determination of triazines and amides in water

A simultaneous capillary Gas Chromatographic-Mass Spectrometric (GC-MS) method is described for the determination of thirteen pesticides belonging to the triazine and amide families in water. The sample is extracted in liquid-liquid mode (dichloromethane) and then the determination of the residues is carried out by capillary gas chromatography with mass spectrometric detection in the Selected-Ion Monitoring mode (SIM). The average recoveries of spiked compounds are in the 78.4-135.4 % range between the relative low level (0.100 mu g L(-1)) and the relative high level (10.0 mu g L(-1)). The limits of detection (LOD) are in the 0.009-0.128 mu g L(-1) range.