has proper occurrent part gas chromatography gas chromatography-thermal energy analysis CHMO:0001739 gas chromatography thermal energy analysis GCTEA gas chromatography-thermal energy analysis A gas chromatography method that is sensitive to compounds containing NO and NO2 groups. The eluent is pyrolysed (at 275 deg C) producing radicals, which react with ozone under low pressure to produce chemiluminescence. GC/TEA GC-TEA determination of nitrosamines