The isolation and identification of polychloro-2-(chloro-methylsulphonamide) diphenyl ether isomers and their metabolites from eulan wa new and fish tissue by gas chromatography—mass spectrometry

The active ingredients of Eulan WA New have been isolated and identified by nuclear magnetic resonance and mass spectrometry. The gas chromatography thermal decomposition products of the polychloro-2-(chloromethylsulphonamide) diphenyl ether isomers have been monitored and the chromatogram of Eulan WA New has been characterized. A method for the extraction, clean-up, and analysis of the isomers and their metabolites in fish tissue by g.c.—m.s. has been developed.