Presentation Profile
Advancing Fluorine Quantification in WPPO: A Novel Combustion-AAS Approach
Currently Scheduled: 10/14/2025 - 9:25 AM - 9:55 AM
Room: Floral Hall A2
Main Author
Jesus Acapulco - Analytik Jena
- Jesus Acapulco - Analytik Jena
- Jess Gantt - Analytik Jena
- Simone Moos - Analytik Jena
- Olga Weisheit - Analytik Jena
Abstract:
The shift from fossil-based to alternative feedstocks such as waste plastic has introduced new contaminants into refinery processes. Among these, fluorine (F) is a major concern. Currently, combustion ion chromatography (CIC) is the standard method. However, it is costly to purchase and operate, while analysis times are long limiting sample throughput.
This presentation introduces a novel approach for determining fluorine in waste plastic pyrolysis oil (WPPO). The method involves combustion of the WPPO sample, after which halogens are quantitatively captured in an absorber solution. This solution is then analyzed using a high-resolution continuum source atomic absorption spectrometer. The instruments used in this process are called ICprep, which features self-optimizing combustion, and contrAA 800 G, which is also suitable for metal analysis and can handle smaller sample volumes than ICP-OES.
We demonstrate that CIC and the novel “ICprep + contrAA” method yield comparable fluorine concentrations in WPPO. Additionally, sample throughput increases by a factor of 3 using the new approach.
