Non-target screening approach for plant protection product characterization: Use of chromatographic techniques-high resolution mass spectrometry
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Maldonado Reina, Antonio; López Ruiz, Rosalía; Garrido Frenich, Antonia; Romero González, RobertoFecha
2021-10-07Resumen
Plant protection products (PPPs) contain an active substance, with pesticidal function, as well as emulsifiers, anti-foaming agents, etc.., named as co-formulants or adjuvants. Although the information of the active substance is regulated and most of the studies are mainly focused on the presence of the pesticide, these co-formulants are not commonly included in the PPP’s label and there are scarce studies focused on the presence of these co-formulants in PPPs, that can also be toxic, as the active compound. To achieve a complete characterization of PPPs, a non-target approach was applied using chromatographic techniques (gas and liquid chromatography) coupled to high resolution mass spectrometry analyser (Quadrupole-Orbitrap). Thus, more than 10 PPPs (including emulsifiable concentrates, concentrated suspensions, etc) containing either chlorantraniliprole or difenoconazole were characterized and more than 40 co-formulants were tentatively identified, but less than 15 were confirmed af...
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Química