determinação simultânea de trialometanos e agrotóxicos em água por cromatografia gasosa
Clicks: 206
ID: 165863
2011
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Abstract
A method for simultaneous analysis of trihalomethanes and organochloride and pyrethroid pesticides in water utilizing SPME-HS and GC-ECD was developed. In the optimized method 25 mL of water containing 2% (w/v) Na2HPO4 were heated to 60 °C for 50 min. The fiber (PDMS - 100 μm) was exposed to a headspace for the same period. For all analytes it was found that LOQ < MCL (Maximum Contaminant Level), CV < 20% and r > 0.9. The method was applied to potable and surface water samples. Some trihalomethanes were encountered in potable waters, at levels below the MCL.
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carlos2011qumicadeterminao
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|---|---|
| Authors | ;Elenice A. Carlos;Antônio A. Neves;César Reis;Maria Eliana L. R. de Queiroz |
| Journal | greece and rome |
| Year | 2011 |
| DOI |
10.1590/S0100-40422011000200019
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