Determination of Non-targeted Fluorine in Air Using Combustion Ion ChromatographyAir Monitoring, Methods, and Technology
Oral Presentation
Prepared by J. Gandhi1, E. Hachmeister2
1 - Metrohm USA, 9250 Camden Field Parkway, Riverview, FL, 33578, United States
2 - Markes International, 2355 Gold Meadow Way., Sacramento, CA, 95670, United States
Contact Information: [email protected]; 813-316-4700
ABSTRACT
The use of combustion ion chromatography (CIC) has been gaining traction as an alternate approach to measuring PFAS compounds such as non-targeted fluorine. To date, CIC has been used to obtain the sum total of non-targeted fluorine in water, soil, consumer products and more. Further acceptance came in 2024, when EPA Method 1621 became the first official EPA method to utilize this technique for the analysis of wastewater for adsorbable organic fluorine (AOF).
The capabilities of CIC to screen for non-targeted fluorine in air have yet to be explored in depth. Air sampling using cannisters, bags, and thermal desorption tubes have been applied in the past to targeted PFAS compound analysis with techniques like GC and LC with mass spectrometric detection. In this talk, we explore non-targeted fluorine detection in air via CIC using air cannister sampling with the Markes CIA Advantage-xr and UNITY-xr system. An overview of the analytical system and technique will be provided, along with exemplary data demonstrating proof-of-concept.
