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The combination of solid phase extraction and gas chromatography - mass spectrometry enables fast and reliable analy- sis of pesticides residues in drinking water. The evaluation of analysis techniques is a priority for laboratories dealing with qual- ity control. The ordinance 89-3 of the 1/3/89 fixes the maximum acceptable concentrations of micro-pollutants in drinking water including pesticides and chemically related substances belonging to highly diversified chemical families. This paper described a multiresidue analysis method of triazines, organochlorine pesticides and polyaromatic hydrocarbons, adapted from the method E.P.A. 525.2. This multiresidue method and especially the solid phase extraction process employing laminar C 18 disks, is evalu- ated together with relevant statistical tests as outlined in the NF XP T 90-210 procedure.

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An evaluation of the use of laminar C18 disks employed as part of the solid phase extraction process. Simultaneous capillary gas chromatography - mass spectrometry determination of triazines, organochlorine pesticides, and polyaromatic hydrocarbons