Characterization of Disinfection By-Products in Arkhangelsk Tap Water by Liquid Chromatography/High-Resolution Mass Spectrometry
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Disinfection of drinking water with chlorine-containing reagents leads to the formation of a large number of disinfection by-products, resulting from the chlorination of natural dissolved organic matter. High-performance liquid chromatography/high-resolution mass spectrometry with solid-phase preconcentration on a polymeric sorbent was used to study the component composition of halogen-containing disinfection by-products in Arkhangelsk tap water. Fourteen chlorinated and brominated organic compounds, which belong to the classes of halophenols, aromatic acids, carbonyl compounds, and chlorine-substituted nitrogen-containing heterocyclic compounds, have been found. Based on the analysis of MS/MS spectral data, possible structures of the detected disinfection by-products are proposed.
Keywords:high-resolution mass spectrometry tandem mass spectrometry chlorination water disinfection disinfection by-products chlorophenols
This work was supported by the Russian Science Foundation, project no. 17-13-01112 and performed using instrumentation of the “Arktika” Core Facility Center of the Northern (Arctic) Federal University. The development of the infrastructure the “Arktika” Core Facility Center was supported by the Ministry of Education and Science of the Russian Federation (unique identifier RFMEFI59417X0013).
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