The detection and determination of residues of the herbicide nitrofen in vegetables

Abstract

A method for residue analysis, based on electron-capture gas chromatography following clean-up on a sulphuric acid-Celite column, is presented. The limit of detection is 10 ng g^–1. Recoveries have been investigated for different kinds of vegetables. The extraction efficiency of acetonitrile versus dichloromethane was checked in a separate experiment. Spectroscopic data and results for the herbicide are included.