Application of chemometric analysis based on physicochemical and chromatographic data for the differentiation origin of plant protection products containing chlorpyrifos.
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.
a Institute of Plant Protection-National Research Institute Sośnicowice Branch, Pesticide Quality Testing Laboratory , Sośnicowice , Poland.
Marek
M
Miszczyk
Marlena
M
Płonka
Katarzyna
K
Bober
Małgorzata
M
Dołowy
Alina
A
Pyka
Klaudia
K
Pszczolińska
D055598:Chemical Phenomena; D004390:Chlorpyrifos / Q000032:analysis* / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D010575:Pesticides / Q000032:analysis* / Q000737:chemistry*; D025341:Principal Component Analysis
D010575:Pesticides; D004390:Chlorpyrifos
Headspace Gas Chromatography–Mass Spectrometry; Pesticides; cluster analysis; counterfeit pesticides; plant protection products; principal component analysis