Perfluorinated sulfonylimides
Our range of PFAS standards for your environmental analyses.Discover our native lithium bis(trifluoromethanesulfonyl)imide (LiPFMeSI) and lithium bis(pentafluoroethanesulfonyl)imide ( LiPFEtSI) standards.
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Home | Wellington Analytical Standards | PFAS | Perfluorinated Sulfonylimides
OUR LiPFMeSI & LiPFEtSI ANALYTICAL STANDARDS
These perfluorinated lithium salts are available as individual 1.2 mL solutions in methanol.
Each of our LiPFMeSI and LiPFEtSI standards is > 98% pure and ISO 9001, ISO/IEC 17025 and ISO 17034 certified. As a result, they offer unrivalled reliability for your PFAS analyses, whatever the type of matrix studied.
What’s more, their ready-to-use formulation makes it much easier to prepare accurate, reproducible calibrations, while minimising the risk of error associated with manual dilutions. These reference standards are therefore essential for:
- Accurate detection and quantification of perfluorinated sulfonylimide anions,
- Validate your analytical methods in accordance with regulatory requirements,
- Ensure the traceability and comparability of your results, whether in water, soil or biological samples.
Finally, thanks to their optimal stability and secure packaging, you have a high-performance, long-lasting standard, essential for guaranteeing the quality and robustness of your PFAS measurement campaigns.
Native lithium bis(perfluoroalkanesulfonyl)imides
Native individual solutions of perfluorinated sulphonylimides
Catalogue No. | Description | CAS |
---|---|---|
LiPFMeSI | Lithium bis(trifluoromethanesulfonyl)imide | 90076-65-6 |
LiPFEtSI | Lithium bis(pentafluoroethanesulfonyl)imide | 132843-44-8 |
Packaging
1.2 mL x 50ug/mL
Solvent
Methanol
Manufacturer
Wellington Laboratories
Availability & ordering
Contact us.



Our commitments
High precision
Rigorously characterised standards, ensuring reliable identification and quantification thanks to exceptional purity and optimum thermal stability.
Certified reliability
Each batch is delivered with a detailed certificate of analysis, guaranteeing traceability and compliance with international standards.
Fast delivery
France and Belgium.
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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 perfluorinated sulfonylimides
LiPFMeSI & LiPFEtSI
These two compounds are lithium salts whose anion is a perfluorinated sulphonylimide derivative:
LiPFMeSI
Chemical name: lithium bis(trifluoromethanesulfonyl)imide, more commonly abbreviated LiTFSI.
Formula: C₂F₆LiNO₄S₂
LiPFEtSI
Chemical name: lithium bis(pentafluoroethanesulfonyl)imide, or LiBETI.
Formula: C₄F₁₀LiNO₄S₂
Main applications
These two salts are widely used as electrolytes in lithium-ion batteries, supercapacitors and ion electrolyte (IL) systems.
To find out more
LiPFMeSI: a growing source of PFAS emissions – BCP Instruments
Product Announcements – Wellington Laboratories Inc.
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