期刊
FOOD ANALYTICAL METHODS
卷 5, 期 4, 页码 849-855出版社
SPRINGER
DOI: 10.1007/s12161-011-9317-y
关键词
Pyrethroids; Solid-phase extraction; HPLC
资金
- Center for Innovation in Chemistry (PERCH-CIC), Commission on Higher Education, Ministry of Education
A method for determination of pyrethroid insecticide residues in fruits and vegetables based on a simple extraction using acetonitrile followed by solid-phase extraction and high-performance liquid chromatography-UV is described. Separation of pyrethroids was carried out on an Atlantis C18 column using an isocratic mobile phase of 75% acetonitrile with a flow rate of 1.0 mL min(-1) and UV detection at 225 nm. Matrix effect was overcome using matrix-matched standards for building up the calibration graphs. The linear ranges were established between 0.01 and 0.50 mu g mL(-1). The concentration of pyrethroids was enhanced with the factors up to 1,025 folds. The method has been successfully applied in a monitoring of pyrethroid residues contaminated in fruits and vegetables.
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