Oxyanions in the water – a tale of 4 analytes in 5 minutes
Common methods for the analysis of oxyanions require separation with ion chromatography using suppressed conductivity detection. Often to achieve the required detection limits, in some cases for bromate post column derivatization is required using UV detection.
The purpose of our work is to demonstrate a direct injection method for the determination of Oxyanions: chlorate, perchlorate bromate and chlorite in drinking water that exceeds the requirement for the new EU Drinking Water Directive.
We have developed a fast, direct injection LC-MS/MS method with low volume injection utilizing the Anionic Polar Pesticides column. This approach allows for:
- Fast analysis time of 5 minutes without sacrificing the peak shape of the analytes
- Robust and reproducible analytical method allowing for a simpler laboratory workflow
- Consistent method performance across 3 different water type (mineral, soft and hard drinking water)
Presenter: Stuart Adams (Principal Scientist Market Development, Waters Corporation)
Stuart has been developing methods for the determination of contaminants in food and the environment for over 17 years. Stuart's previous role was as a senior analytical chemist at Fera, before moving to Waters in 2018 to focus on application development in the European region. He now works with customers to understand and help address their analytical challenges with Waters technologies.
