Study of water treatment effects on organic volatiles in drinking water

Headspace chromatographic determination of water pollutants

“…The two detectors were used simultaneously to aid in detection of both chlorinated and nonchlorinated organics and, by virtue of their difference in specificity, to aid in compound identification. Simultaneous use of two different detectors has been reported (18,19), but although an FID/ electron capture detector (ECD) combination ( 18) would be desirable, the ECD was not used for fear of detector contamination. In view of its properties (15), our previous experience in a similar application (16), and results of our preliminary comparison tests (unreported) with several Chromosorb packings, Tenax GC was chosen as the packing for the combined trap/chromatographic column.…”

“…Also, the range of compounds which can be efficiently purged from a water sample in a reasonable time, and with a reasonable purge gas flow, has been extended by warming the water sample (3, 5, 9-11). Although a single detector has commonly been used in an analytical system, simultaneous use of two detectors has been reported (18,19) for dynamic headspace analyses of water.…”