Detecting Fluorotelomer Alcohols (FTOHs) in Water
Fluorotelomer alcohols (FTOHs) are a significant class of per- and polyfluoroalkyl substances (PFAS) known for their widespread use and environmental persistence.
FTOHs are precursors to perfluorocarboxylic acids (PFCAs), including harmful substances like perfluorooctanoic acid (PFOA) and perfluorohexanoic acid (PFHxA). The presence of FTOHs in surface water, groundwater, and drinking water poses potential risks to both human health and the environment.
At WESSLING, part of ALS Limited, we are committed to providing cutting-edge solutions for the detection and quantification of FTOHs in water. Our newly validated method, leveraging gas chromatography-triple quadrupole tandem mass spectrometry (GC-MS/MS), offers unparalleled sensitivity, robustness, and selectivity.
The Importance of Detecting FTOHs
- The extensive use of fluorotelomer-based substances has led to their widespread presence in various environmental media. FTOHs are utilized in the production of numerous products, including textiles, polymers, paints, adhesives, waxes, and cleaning agents. These substances can be released into the atmosphere during manufacturing processes and subsequently transported over long distances due to their high volatility.
- Sources of FTOHs include landfill leachate and wastewater treatment works. Additionally, FTOHs are components of aqueous film-forming foams (AFFF), used extensively in firefighting, which further contributes to their environmental dissemination.
-
Health and Environmental Risks : FTOHs can degrade into persistent and bioaccumulative PFCAs through various biotransformation mechanisms, thereby indirectly contributing to PFCA pollution. Human exposure to FTOHs primarily occurs through ingestion of contaminated water and food.
Advanced Analytical Method
Our team at WESSLING has developed a state-of-the-art analytical method for quantifying FTOHs in water. This method, pending UKAS accreditation, utilizes GC-MS/MS with positive chemical ionization (PCI) to enhance sensitivity and selectivity. The method provides reliable detection limits for various FTOHs, ensuring comprehensive monitoring and assessment.
Sampling and Analysis
- Sample Collection: Samples should be collected in 40 mL volatile organic compound (VOC) vials with Teflon septa containing 2 mL of methanol. It is crucial to achieve zero headspace in the vials to preserve sample integrity.
- Laboratory Analysis: Utilizing GC-MS/MS-PCI, our method delivers high sensitivity and precision. This technique allows us to detect FTOHs at concentrations as low as 5 ng/L, providing robust data for environmental monitoring.
Contact Us
For more information on our FTOH detection services and to discuss your specific needs, please contact our expert. Our team is ready to assist you with tailored solutions to ensure the safety and quality of your water resources.
Your dedicated contact
- Frédéric Jeampierre
- +33 07 56 37 24 99
- frederic.jeampierre@wessling.fr
