Combination of Targeted and Non-Targeted Workflows for the Identification of Pollutants in River Water using a Passive Sampling MethodEmerging Environmental Applications for High Resolution Mass Spectrometry
Poster Presentation
Prepared by G. Nieckarz
Bruker Daltonics, 40 Manning Rd, Billerica, MA, 01821, United States
Contact Information: [email protected]; 15416743213
ABSTRACT
In this study we tested and evaluated the combination of targeted and non-targeted workflows using an LC-QTOF system and a passive sampling device for monitoring of pollutants in surface water. River Clun in Wales, UK, whose ecological status is classified as poor, was selected to test the method. As expected, pollution in the surface water varies significantly depending on the location and season. We found that the passive sampling device can be used for monitoring pollutants in water and to obtain time-weighted average (TWA) or equilibrium concentrations of pollutants. With the targeted analysis approach between 5 and 93 compounds per sample could be identified with high confidence, averaging roughly 50 compounds per sample. Most pollutants were pharmaceuticals. With the untargeted approach the number of identified compounds could be nearly doubled.
