A new reference standard for analyzing aPFNOBS is now available
Wellington Laboratories have developed a new standard for the detection of the compound aPFNOBS used in fire-fighting foams.
The role of aPFNOBS in fire-fighting foams.
aPFNOBS, or OBS, is a major component of a commercial fluorosurfactant used as an alternative to PFOS in Aqueous Film-Forming Foams (AFFF).
Because of the restrictions imposed on PFOS due to its persistence and toxicity, OBS has gained popularity as a substitute. However, research suggests that aPFNOBS has similar properties: marked persistence in the environment, potential toxicity to wildlife and a risk of bioaccumulation in food chains.
Persistence, bioaccumulation and toxicity
Environmental persistence means that, like other PFAS, aPFNOBS degrades only very slowly under natural conditions, accumulating in soils and water. This accumulation poses challenges for aquatic and terrestrial ecosystems, with potential impacts on drinking water quality and local ecosystems.
Detection and environmental monitoring
The detection of aPFNOBS in wastewater and contaminated environments has therefore become a priority for the scientific community and regulators alike. To meet these detection needs, Wellington has recently extended its range of reference standards to include compounds such as sulfonates and per- and polyfluoroalkylated carboxylic acids, with a certified standard for aPFNOBS.
These analytical standards are essential for accurate quantitative analysis and for tracking the presence and concentration of aPFNOBS in various environments, enabling better risk assessment and monitoring.
Enhanced monitoring for better regulation
Thus, the use of aPFNOBS as an alternative to PFOS, although initially considered less problematic, is now attracting increasing attention from scientists and regulators due to its potentially comparable effects.
Reference standards such as those proposed by Wellington Laboratories play an vital role in monitoring efforts, providing laboratories with tools to measure the presence of this agent in the environment and guide regulatory decisions.
The aPFNOBS analytical standard is available: contact us!
| Catalogue No. | Description | Unit | Solvent | CAS | |
|---|---|---|---|---|---|
| aPFNOBS | Sodium p-perfluorous nonenoxybenzenesulfonate | 1.2 mL x 50ug/mL | methanol | 70829-87-7 |
Our range of native Per- and Polyfluoroalkyl Ether Sulfonates (PFESA) standards:
| Catalogue No. | Description | Unit | Solvent | CAS | |
|---|---|---|---|---|---|
| PFEESA | Potassium perfluoro(2-ethoxyethane)sulfonate | 1.2 mL x 50ug/mL | methanol | 117205-07-9 | |
| aPFNOBS | Sodium p-perfluorous nonenoxybenzenesulfonate | 1.2 mL x 50ug/mL | methanol | 70829-87-7 | |
| 9Cl-PF3ONS | Potassium 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate | 1.2 mL x 50ug/mL | methanol | 73606-19-6 (F-53B) | |
| 11Cl-PF3OUdS | Potassium 11-chloroeicosafluoro-3-oxaundecane-1-sulfonate | 1.2 mL x 50ug/mL | methanol | 83329-89-9 |
Our range of native Per- and Polyfluoroalkyl Ether Carboxylic Acids (PFECA) standards:
| Catalogue No. | Description | Unit | Solvent | CAS | |
|---|---|---|---|---|---|
| NaDONA | Sodium dodecafluoro-3H-4,8-dioxanonanoate | 1.2 mL x 50ug/mL | methanol | 2250081-67-3 | |
| PF4OPeA | Perfluoro-4-oxapentanoic acid (PFMPA) | 1.2 mL x 50ug/mL | methanol | 377-73-1 | |
| PF5OHxA | Perfluoro-5-oxahexanoic acid (PFMBA) | 1.2 mL x 50ug/mL | methanol | 863090-89-5 | |
| 3,6-OPFHpA | Perfluoro-3,6-dioxaheptanoic acid (NFDHA) | 1.2 mL x 50ug/mL | methanol | 151772-58-6 | |
| HFPO-DA | 2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)propanoic acid | 1.2 mL x 50ug/mL | methanol | 13252-13-6 |
Find out more:
- Per- and polyfluoroalkylated substances (PFAS)
- Wellington Laboratories
- See the Wellington Reporter