Rapid Multi-Residue Method for Simultaneous Determination of 1,3,5-Triazine Herbicides in Environmental Samples by Capillary GC-MS-EI Selective Ion Monitoring Method

A new multi-residue method using gas chromatography–mass spectrometry electron ionization selective ion monitoring mode (SIM) has been developed for the simultaneous determination of eight 1,3,5-triazine herbicides such as 1,3,5-triazine-2,4-diamine (atrazine), ametryn, prometryn, propazine, terbuthylazine, terbutryn, and simazine simetryn in water soil samples. Quantification is done lindane (gamma benzene hexachloride) an internal standard. specific Capillary DB-Wax column 30 m length, 0.32 mm diameter, 0.25 µm film thickness used separation 1,3,5-triazine-2,4-diamine. The was applied residues groundwater lowest detection limit by GC-MS-SIM (selective mode) 0.1 pg/mL. Recovery samples range 93–103%, samples, 91–102% different individual compounds. Forty-five were collected around Kancheepuram district Tamilnadu (India), they analyzed respective residues. detailed discussion GC-MS analysis results presented.