Estudo comparativo entre modos de aquisição SIM e MS/MS por detector ion trap para determinação de agrotóxicos em água

Abstract

The purpose of this study is to analyze comparatively modes of acquisition of SIM and MS / MS data in a gas chromatograph coupled with ion trap detector, to identify and quantify 14 pesticides in a water sample. A Solid Phase Microextraction (SPME) technique was used in the analysis. The comparative analysis of this study reveals that the ion trap mass analyzer confers higher selectivity and better resolution to the chromatographic analysis, as well as more interference free readings. Actual sampling was subjected to fortification analysis with 14 pesticides. In general, the MS / MS acquisition mode gave results with higher accuracy, as well as significant increase in peak resolution and chromatograms with less interference.