Detemination of 34 Pesiticide Residues in Tea by GC-MS with Carb/PSA Solid-phase Extraction
Article
Figures
Metrics
Preview PDF
Reference
Related
Cited by
Materials
Abstract:
A multiresidue analytical method was developed for the determination of 34 pesticide residues in tea using gas chromatography-mass spectrometry. The samples were extracted by acetonitrile and cleaned up by Carb/PSA solid phase extraction(SPE) columns. The results of the spiked level test showed that the average recovery of 34 pesticides ranged from 70% to 124% with relative standard deviations (RSDs) of 0.2%~14.9%. The limits of detection were 0.1~25.0 μg/kg. The sensitivity and accuracy meet the requirements of the multiple pesticide residue analysis.
