Leaf spray, a rapid and simple ambient ionization method for mass spectrometry is shown to allow identification of a number of typical pesticides (acetamiprid, diphenylamine, imazalil, linuron, thiabendazole) directly in the peel and pulp of a variety of different fruits and vegetables (apple, pear, lemon, orange, carrot, cucumber, eggplant, potato). These identifications were confirmed by tandem mass spectrometry. Attempts were made to quantify the amount of pesticide using MS/MS data from calibration curves created with external standards. Calibration samples were made using samples created by adding pesticide standards to organic fruit or vegetable. Typical experiments take approximately 100 seconds to perform; limits of detection are within the levels specified for residue analysis by the EU. Linear dynamic ranges of three orders of magnitude and precisions of better than 15% are obtained. © 2012 The Royal Society of Chemistry.

Malaj, N., Ouyang, Z., Sindona, G., Cooks, R. (2012). Analysis of pesticide residues by leaf spray mass spectrometry. ANALYTICAL METHODS, 4(7), 1913-1919 [10.1039/C2AY25222H].

Analysis of pesticide residues by leaf spray mass spectrometry

MALAJ, NAIM;
2012

Abstract

Leaf spray, a rapid and simple ambient ionization method for mass spectrometry is shown to allow identification of a number of typical pesticides (acetamiprid, diphenylamine, imazalil, linuron, thiabendazole) directly in the peel and pulp of a variety of different fruits and vegetables (apple, pear, lemon, orange, carrot, cucumber, eggplant, potato). These identifications were confirmed by tandem mass spectrometry. Attempts were made to quantify the amount of pesticide using MS/MS data from calibration curves created with external standards. Calibration samples were made using samples created by adding pesticide standards to organic fruit or vegetable. Typical experiments take approximately 100 seconds to perform; limits of detection are within the levels specified for residue analysis by the EU. Linear dynamic ranges of three orders of magnitude and precisions of better than 15% are obtained. © 2012 The Royal Society of Chemistry.
Articolo in rivista - Articolo scientifico
pesticide residues;
English
2012
4
7
1913
1919
none
Malaj, N., Ouyang, Z., Sindona, G., Cooks, R. (2012). Analysis of pesticide residues by leaf spray mass spectrometry. ANALYTICAL METHODS, 4(7), 1913-1919 [10.1039/C2AY25222H].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/78639
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