Simultaneous, Online Membrane Inlet Mass Spectrometry (MIMS) and UV-Vis Absorbance for Kinetic Studies of the Formation of Disinfection Byproducts (DBPs) during Chlorination.

ABSTRACT: In this article, we demonstrate the major advantages of performing online kinetic studies of the formation of disinfection byproducts (DBPs) during chlorination using membrane inlet mass spectrometry (MIMS) supplemented with simultaneous UV-vis absorbance. MIMS is a well-known technique for online monitoring of small volatile organic compounds, but it cannot measure polar and/or nonvolatile organic compounds. This is problematic, since chemical DBP precursors, such as pesticides and pharmaceuticals, are generally not detectable by MIMS and must be analyzed offline using typical GC/MS or LC/MS. Supplementation of MIMS with simultaneous UV-vis absorbance makes it possible to monitor many of these non-MIMS detectable precursors. In addition, in many cases, UV-vis absorbance can be used to mon

SUBMITTER: de Arce Stover AK 

PROVIDER: S-EPMC12756776 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature