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Abstract
An Ion-Interaction RP-IIR-HPLC method was developed, able to simultaneously separate neutral, basic, and acidic pesticides in a single run. The proposed method was validated by comparison of the results obtained for the same sample by conventional RP-HPLC and GC/MS methods. For this purpose parametric t-, F-, t-paired, and t- for multiple samples and non parametric Wilcoxon matched-pair signed-rank tests were employed. The accuracy of the proposed IIR-RP-HPLC method was evaluated with respect to a lab-made reference sample of spiked tap water.
ACKNOWLEDGMENTS
The authors gratefully acknowledge financial support by CNR (Consiglio Nazionale delle Ricerche, Roma) and MURST (Ministero dell'Università e della Ricerca Scientifica e Tecnologica, Roma).