Organic chloramines are the important disinfection byproducts and have attracted wide attention for their high toxicity potential. However, due to the volatile and unstable properties of volatile organic chloramines, there is a lack of effective analytical methods which limited the research of them. In this study, membrane introduction mass spectrometry (MIMS) was developed to test the formation of volatile organic chloramines. N-chlorodimethylamine [(CH3)2NCl] was identified from all the model organic compounds with dimethylamine functional groups during the chlorination or ClO2 treatment. In addition, ppb level (CH3)2NCl was observed in the nature water chlorination. Moreover it could be detected as well as the nature water disinfected by ClO2 at the presence of dimethylamines. The results suggest that dimethylamines are one of the significant precursors and ubiquitous in real water. (CH3)2NCl is also one of the important organic chloramines should be concerned during water treatment

Volatile organic chloramine formation during chlorination and ClO2 treatment

ACS Spring Meeting 2021

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.