Abstract:
Objectives To investigate the consistency of headspace-GC and purge and trap-GC/MS method in the analysis of trihalomethane in drinking water.
Methods The detection limit, accuracy, precision and line range were compared, and the concentrations of trihalomethane in water samples were analyzed by t-test.
Results Two method both did well in the qualitative and quantitative analysis of trihalomethane in drinking water and there was no significant difference among the concentrations of trihalomethane in water samples.
Conclusions Headspace- GC was suitable for analysis when the concentration range was wide and the sample amount was large. The purge-trap-GC/MS is more suitable for the analysis of trace trihalomethane in drinking water.