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Química Nova

Print version ISSN 0100-4042


BASTOS, Lucia Helena Pinto et al. Development and validation of a method for analysis of organophosphate residues in milk using gas chromatography with flame photometric detection. Quím. Nova [online]. 2012, vol.35, n.8, pp.1657-1663. ISSN 0100-4042.

This paper regards the implementation of the QuEChERS method for the analysis by GC-FPD of 53 different pesticides from the organophosphate class, in whole UHT and pasteurized milk. Selectivity, linearity, repeatability, recovery and limits of detection and quantification were evaluated. Of all pesticide recoveries, 51 were considered satisfactory since the values ranged from 70 to 120% with RSD < 20%. The quantification limits ranged from 0.005 to 0.4 mg kg-1. The QuEChERS method was suitable for determination of 52 pesticides, presenting several advantages - quick, cheap, easy, effective, rugged and safe - with regard to other traditional methodologies.

Keywords : pesticides; milk; QuEChERS.

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