Application of chemometric analysis based on physicochemical and chromatographic data for the differentiation origin of plant protection products containing chlorpyrifos |
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| Authors: | Marek Miszczyk Marlena P?onka Katarzyna Bober Alina Pyka Klaudia Pszczolińska |
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| Institution: | 1. Institute of Plant Protection—National Research Institute So?nicowice Branch, Pesticide Quality Testing Laboratory, So?nicowice, Poland;2. Medical University of Silesia in Katowice, School of Pharmacy and the Division of Laboratory Medicine, Department of General and Analytical Chemistry, Institute of Analytical Chemistry, Poland |
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| Abstract: | The aim of this study was to investigate the similarities and dissimilarities between the pesticide samples in form of emulsifiable concentrates (EC) formulation containing chlorpyrifos as active ingredient coming from different sources (i.e., shops and wholesales) and also belonging to various series. The results obtained by the Headspace Gas Chromatography–Mass Spectrometry method and also some selected physicochemical properties of examined pesticides including pH, density, stability, active ingredient and water content in pesticides tested were compared using two chemometric methods. Applicability of simple cluster analysis and also principal component analysis of obtained data in differentiation of examined plant protection products coming from different sources was confirmed. It would be advantageous in the routine control of originality and also in the detection of counterfeit pesticides, respectively, among commercially available pesticides containing chlorpyrifos as an active ingredient. |
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| Keywords: | Pesticides plant protection products counterfeit pesticides Headspace Gas Chromatography–Mass Spectrometry cluster analysis principal component analysis |
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