LC-MS/MS AND GC/MS/MS METHOD FOR SCREENING LCOF 170 PESTICIDES AT PPT LEVEL IN SURFACE, AND ENVIRONMENTAL WATERS Grazia Accoto, Eustachio Acito, Dominga Bochicchio, Vittoria Nola, Nicola Loizzo, Achille Palma ARPAB-Centro Ricerche di Metaponto, ss. Jonica 106 km 448.2, 75012 Metaponto (Matera) Italy
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INTRODUCTION The environmental impact of organic pollutants in aquatic environment has greater importance today’s than ever before. One consequence of the widespread use of pesticides in agricultural practice is that residue of these products contaminate ground and/or surface water. Today, many sources of water are contaminated with pesticides and are also used for preparation of drinking water. Our laboratory has developed a rapid, sensitive and robust analytical procedure for determination of pesticides contamination in environmental and drinking water samples. The method was developed for the screening and quantitation of 170 (table 1) pesticides including the most widely used substances in agriculture practices. Mainly herbicides, as the classical triazine and their main transformation products, as well as fungicides and insecticides are taken in account. This analytical method was applied to investigate the presence of pesticides in the artificial lake named Pietra del Pertusillo during the years 2013-2014. 2,4,5-T 2.4-D Acefate Acetamiprid Alaclor Aldicarb Ametoctradin Ametoctradin Anilazina Atrazina Avermectin Azinfosetile Azinfosmetile Azoxistrobin Benalaxil Bendiocarb Benfuracarb Bentazone Benzossimato Bifenazate Bifentrin Bitertanolo Boscalid Bupirimate Buprofezin Cadusafos Carbaril Carbofuran Chlorantraniliprole Chlorfenvifos Chlorfluazuron Chlorpirifosetile Chlorpirifosmetile Ciazofamid
METHOD Sample preparation Cartridge STRATA-XL 6cc, 200mg is conditioned with 3ml MeOH and 3ml water Pass 1000ml of sample through the cartridge (flow
