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

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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.

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