Analysis of priority pesticides and phenols in Portuguese river water by liquid chromatography-mass spectrometry |
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Authors: | D A Azevedo S Lacorte P Viana D Barceló |
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Institution: | 1. Department of Organic Chemistry, Institute of Chemistry, Federal University of Rio de Janeiro, CT, Bl.A, I. Fund?o, 21949-900, Rio de Janeiro, Brazil 2. Department of Environmental Chemistry, IIQAB-CSIC, Jordi Girona 18-26, 08034, Barcelona, Spain 3. Direc?o Geral do Ambiente, Ministério do Ambiente, Portugal
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Abstract: | Summary The determination of selected pesticides and phenols in Portuguese river water samples was carried out from April to September,
1999. The method involved 200 mL samples taken by offline, solid phase extraction by OASIS polymeric cartridges followed by
liquid chromatography-atmospheric pressure, chemical ionization-mass spectrometry (LC-APCI-MS). Recoveries of pesticides were
50–96% and 72–120% for the Platform and HP 1100 instruments, respectively. Chlorophenols gave recoveries of 60–91%. Triazines
and transformation products like desethylatrazine (DEA) and desisopropylatrazine (DIA) and compounds such as diuron and chlorophenols
were positively identified by LC-APCI-MS. The levels detected of the different compounds varied from 0.01–2.61 μg L−1, the most frequently detected compounds being, atrazine, simazine, terbuthylazine, alachlor, metolachlor, Irgarol, diuron,
2,4,6-trichlorophenol, desisopropylatrazine and desethylatrazine. |
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Keywords: | Column liquid chromatography Atmospheric pressure Cl-mass spectrometry Pesticides and phenols River water samples |
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