ISO 21675:2019 Method
Our solutions for assessing water quality and monitoring persistent pollutants.To fully support the application of ISO 21675:2019, Wellington has developed solutions and mixtures of native and labelled PFAS, specifically designed for this method.
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Our Solutions/Mixtures developed for the ISO 21675:2019 method
ISO 21675-NSS and ISO 21675-LSS mixtures from Wellington Laboratories are certified standards designed specifically for the application of ISO 21675:2019, used for the analysis of PFAS (per- and polyfluoroalkylated substances) in water.
The combined use of these two mixtures ensures that the ISO 21675:2019 method is applied with maximum analytical rigour.
All our mixtures are available as 1.2 mL solutions in methanol.
Native PFAS standards, targeted analytes in ISO 21675 method.
PFAS-labelled standards, targeted analytes in ISO 21675 method.
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High precision
These innovative solutions enable reliable identification and quantification of target compounds thanks to their exceptional purity and optimum compatibility with analytical protocols.
Designed to meet the rigorous demands of laboratories, our mixtures offer unrivalled analytical performance, ensuring reproducible results that comply with the most stringent regulatory standards. With Wellington, you benefit from reference tools for carrying out cutting-edge environmental analyses.
Certified reliability
Each batch is accompanied by a detailed certificate of analysis, attesting to the quality and purity of the compounds.
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ISO 21675-NSS mixture
ISO 21675:2019 Native Stock Solution
This mixture contains isotopically unlabelled standards of PFAS; analytes targeted in the ISO 21675 method.
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- Composition: a panel of native PFAS substances commonly detected in the environment, such as PFOA, PFOS, PFHxA, PFNA, etc.
- Example of application: to establish the calibration curve and quantify the analytes.
List of compounds
| Compound | Acronym | Concentration (ng/mL) |
|---|---|---|
| Perfluoro-n-butanoic acid | PFBA | 100 |
| Perfluoro-n-pentanoic acid | PFPeA | 100 |
| Perfluoro-n-hexanoic acid | PFHxA | 100 |
| Perfluoro-n-heptanoic acid | PFHpA | 100 |
| Perfluoro-n-octanoic acid | PFOA | 100 |
| Perfluoro-n-nonanoic acid | PFNA | 100 |
| Perfluoro-n-decanoic acid | PFDA | 100 |
| Perfluoro-n-undecanoic acid | PFUdA | 100 |
| Perfluoro-n-dodecanoic acid | PFDoA | 100 |
| Perfluoro-n-tridecanoic acid | PFTrDA | 100 |
| Perfluoro-n-tetradecanoic acid | PFTeDA | 100 |
| Perfluoro-n-hexadecanoic acid | PFHxDA | 100 |
| Perfluoro-n-octadecanoic acid | PFODA | 100 |
| Perfluoro-1-octanesulfonamide | FOSA | 100 |
| N-Methylperfluoro-1-octanesulfonamide | N-MeFOSA | 100 |
| N-Ethylperfluoro-1-octanesulfonamide | N-EtFOSA | 100 |
| N-Methylperfluoro-1-octanesulfonamidoacetic acid | N-MeFOSAA | 100 |
| N-Ethylperfluoro-1-octanesulfonamidoacetic acid | N-EtFOSAA | 100 |
| 2H-Perfluoro-2-decenoic acid | FOUEA | 100 |
| 2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)propanoic acid | HFPO-DA | 100 |
| Potassium perfluoro-1-butanesulfonate | PFBS | 100* |
| Sodium perfluoro-1-hexanesulfonate | PFHxS | 100* |
| Sodium perfluoro-1-heptanesulfonate | PFHpS | 100* |
| Sodium perfluoro-1-octanesulfonate | PFOS | 100* |
| Sodium perfluoro-1-decanesulfonate | PFDS | 100* |
| Sodium 1H,1H,2H,2H-perfluorooctanesulfonate | 6:2FTS | 100* |
| Sodium 1H,1H,2H,2H-perfluorodecanesulfonate | 8:2FTS | 100* |
| Sodium dodecafluoro-3H-4,8-dioxanonanoate | NaDONA | 100* |
| Potassium 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate | 9Cl-PF3ONS | 100* |
| Sodium bis(1H,1H,2H,2H-perfluorodecyl) phosphate | 8:2diPAP | 100* |
*The concentration indicated is reported in salt form.
ISO 21675-LSS mixture
ISO 21675:2019 Labelled Stock Solution
This mixture contains isotopically labelled standards of PFAS, the analytes targeted in the ISO 21675 method.
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- Composition: a range of PFAS identical to those in the NSS mixture, but isotopically labelled.
- Example of application: as internal references to correct bias, guaranteeing robust and reliable results.
List of compounds
| Compound | Acronym | Concentration (ng/mL) |
|---|---|---|
| Perfluoro-n-(1,2,3,4-13C4)butanoic acid | MPFBA | 100 |
| Perfluoro-n-(1,2,3,4,5-13C5)pentanoic acid | M5PFPeA | 100 |
| Perfluoro-n-(1,2,3,4,6-13C5)hexanoic acid | M5PFHxA | 100 |
| Perfluoro-n-(1,2,3,4-13C4)heptanoic acid | M4PFHpA | 100 |
| Perfluoro-n-(13C8)octanoic acid | M8PFOA | 100 |
| Perfluoro-n-(13C9)nonanoic acid | M9PFNA | 100 |
| Perfluoro-n-(1,2,3,4,5,6-13C6)decanoic acid | M6PFDA | 100 |
| Perfluoro-n-(1,2,3,4,5,6,7-13C7)undecanoic acid | M7PFUdA | 100 |
| Perfluoro-n-(1,2-13C2)dodecanoic acid | MPFDoA | 100 |
| Perfluoro-n-(1,2-13C2)tetradecanoic acid | M2PFTeDA | 100 |
| Perfluoro-n-(1,2-13C2)hexadecanoic acid | M2PFHxDA | 100 |
| Perfluoro-1-(13C8)octanesulfonamide | M8FOSA | 100 |
| N-methyl-d3-perfluoro-1-octanesulfonamide | d-N-MeFOSA | 100 |
| N-ethyl-d5-perfluoro-1-octanesulfonamide | d-N-EtFOSA | 100 |
| N-methyl-d3-perfluoro-1-octanesulfonamidoacetic acid | d3-N-MeFOSAA | 100 |
| N-ethyl-d5-perfluoro-1-octanesulfonamidoacetic acid | d5-N-EtFOSAA | 100 |
| 2H-Perfluoro-(1,2-13C2)-2-decenoic acid (8:2) | MFOUEA | 100 |
| 2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)(13C3)propanoic acid | M3HFPO-DA | 100 |
| Sodium perfluoro-1-(2,3,4-13C3)butanesulfonate | M3PFBS | 100* |
| Sodium perfluoro-1-(1,2,3-13C3)hexanesulfonate | M3PFHxS | 100* |
| Sodium perfluoro-(13C8)octanesulfonate | M8PFOS | 100* |
| Sodium 1H,1H,2H,2H-perfluoro(1,2-13C2)octanesulfonate (6:2) | M2-6:2FTS | 100* |
| Sodium 1H,1H,2H,2H-perfluoro(1,2-13C2)decanesulfonate (8:2) | M2-8:2FTS | 100* |
| Sodium bis[1H,1H,2H,2H-(1,2-13C2)perfluorodecyl] phosphate | M4-8:2diPAP | 100* |
*The concentration indicated is reported in salt form.
PFAS, per- polyfluoroalkyl Substances
Halogenated flame retardants, HFRs and other compounds
Polychlorinated biphenyls, PCBs
Polybrominated diphenyl ethers, PBDEs Polybrominated biphenyls, PBBs
Dioxins, Furans, PCDDs, PCDFs
Organochlorine Pesticides, OCP
Certified reference materials
Other reagents
Find out more about the ISO 21675 standard
ISO 21675:2019 specifies a method for the determination of per- and polyfluoroalkylated substances (PFAS) in water, including drinking water, groundwater and surface water. It uses liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) to detect and quantify these contaminants. This method is essential for assessing water quality and monitoring persistent pollutants.
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