Comparison of extraction solvents and sorbents in the quick, easy, cheap, effective, rugged, and safe method for the determination of pesticide multiresidue in fruits by ultra high performance liquid chromatography with tandem mass spectrometry.
J Sep Sci
; 38(20): 3525-32, 2015 Oct.
Article
en En
| MEDLINE
| ID: mdl-26312397
ABSTRACT
An improved analytical method was developed for the simultaneous quantification of several plant growth regulators and fungicides (carbendazim, pyrimethanil, metalaxyl, triadimefon, paclobutrazol, thiophanate, prochloraz, dimethomorph, difenoconazole, (4-chlorophenoxy)-acetic acid, (2,4-dichlorophenoxy)-acetic acid, thiadiazuron, forchlorfenuron and gibberellins) in fruits followed by ultra high performance liquid chromatography with tandem mass spectrometry. Samples were extracted and purified using a modified QuEChERS method. Different extraction solvents and sorbents in the QuEChERS method were compared. Optimum results were followed by the addition of 1% acetic acid in acetonitrile; C18 sorbent was added due to the acidic nature of several pesticides. The recoveries of the pesticides were in the range 73.7-118.4%, with relative standard deviations lower than 16.63%. Limits of detection ranged from 0.1-1.0 µg/kg. The method presented here is simple, rapid, sensitive and can be applied to large-scale monitoring programs to screen the presences of pesticides in fruits.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Reguladores del Crecimiento de las Plantas
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Residuos de Plaguicidas
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Extracción en Fase Sólida
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Frutas
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Fungicidas Industriales
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Sulfato de Magnesio
Idioma:
En
Revista:
J Sep Sci
Año:
2015
Tipo del documento:
Article