A procedure for the determination of Imidacloprid and its main metabolites was set up by means of liquid chromatography with an electrochemical detector and post-column photochemical reactor (LC-h-ED). Sample clean-up was developed for bees, filter paper and maize leaves. Chromatographic conditions were based on a reversed-phase C-18 column operated by phosphate buffer 50 mM/CH3CN (80/20, v/v) at pH 2.9. Determination of Imidacloprid and its metabolites was carried out at a potential of 800 mV after photoactivation at 254 nm. Compared to conventional techniques such as gas-chromatography/mass-spectrometry (GC/MS) or LC coupled to other detectors, the present method allows simultaneous trace-level determination of both Imidacloprid (0.6 ng ml-1) and its main metabolites (2.4 ng ml-1).

M. Rancan, A.G. Sabatini, G. Achilli, G.C. Galletti (2006). Determination of Imidacloprid and metabolites by liquid chromatography with an electrochemical detector and post column photochemical reactor. ANALYTICA CHIMICA ACTA, 555, 20-24 [10.1016/j.aca.2005.08.058].

Determination of Imidacloprid and metabolites by liquid chromatography with an electrochemical detector and post column photochemical reactor

GALLETTI, GUIDO
2006

Abstract

A procedure for the determination of Imidacloprid and its main metabolites was set up by means of liquid chromatography with an electrochemical detector and post-column photochemical reactor (LC-h-ED). Sample clean-up was developed for bees, filter paper and maize leaves. Chromatographic conditions were based on a reversed-phase C-18 column operated by phosphate buffer 50 mM/CH3CN (80/20, v/v) at pH 2.9. Determination of Imidacloprid and its metabolites was carried out at a potential of 800 mV after photoactivation at 254 nm. Compared to conventional techniques such as gas-chromatography/mass-spectrometry (GC/MS) or LC coupled to other detectors, the present method allows simultaneous trace-level determination of both Imidacloprid (0.6 ng ml-1) and its main metabolites (2.4 ng ml-1).
2006
M. Rancan, A.G. Sabatini, G. Achilli, G.C. Galletti (2006). Determination of Imidacloprid and metabolites by liquid chromatography with an electrochemical detector and post column photochemical reactor. ANALYTICA CHIMICA ACTA, 555, 20-24 [10.1016/j.aca.2005.08.058].
M. Rancan; A.G. Sabatini; G. Achilli; G.C. Galletti
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/20617
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