A strategy for the evaluation of an analytical approach for selected pesticide residues in complex agricultural product matrices-A case study of leek.
Food Chem
; 221: 205-213, 2017 Apr 15.
Article
en En
| MEDLINE
| ID: mdl-27979194
ABSTRACT
In order to choose a sensitive, selective, simple, rapid, cost-effective and reliable analytical method for a given complex sample, a strategy was proposed for the evaluation of an analytical approach to determining multi-pesticide residue in complex agricultural product matrices, using leek as an example. In this work, the matrix effect of most of pesticides were in the range of -50% to -90%. A simple thin layer chromatography (TLC) was used to evaluate the effect of cleanup. The results agree well with that of matrix effect described above. More than 91% of the investigated compounds achieved recoveries were in the range of 70-120%. The limits of detection and limits of quantification were in the range of 0.1-3.5ng/g and 0.4-11.5ng/g, respectively. The strategy can be used to analyze multi-pesticide residue or related chemicals in diverse agricultural product matrices to provide technical guidance in choosing an analytical approach.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Residuos de Plaguicidas
/
Cebollas
Idioma:
En
Revista:
Food Chem
Año:
2017
Tipo del documento:
Article