Jon Beihoffer, Ed Bour, J. Lowry
Jul 1, 1996
Citations
1
Influential Citations
3
Citations
Journal
Journal of AOAC International
Abstract
Proton nuclear magnetic resonance spectrometry ( l H NMR) was used to identify and quantitate the 4 isomeric bromo- and/or chloro-substituted 1,3-dihalo-5,5-dimethylhydantoins in technical-grade materials used to prepare commercial disinfectants and molluscicides. We found that the technical grades of bromo/chloro-substituted 1,3-dihalo-5,5-dimethylhydantoins are mixtures of the 4 possible isomers, that interconversion among isomers occurs in solution and can be detected by l H NMR, and that isomer interconversion occurs over times greater than those of the NMR timescale.