Abstract
A simple, new gas-chromatography method was developed and validated by a single-laboratory for quantitative determination of four active ingredients (alachlor, chlorpyriphos-methyl, fenthion, and trifluralin) in their commercially available emulsifiable concentrate formulations, widely used in Greece. This method enables the analysis of a number of pesticides with the same chromatographic conditions and internal standard. A capillary gas-chromatographic system equipped with a flame ionization detector and a split injector was used. The linearity of response, specificity, repeatability and other performance characteristics of the method are presented. As a result, the method is validated.
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