Native Potassium Perfluoro-4-ethylcyclohexanesulfonate (PFECHS)
Hydraulic Fluid a Likely Source of Contamination
Native Potassium Perfluoro-4-ethylcyclohexanesulfonate (PFECHS)
Wellington Reporter - Native Potassium Perfluoro-4-ethylcyclohexanesulfonate PFECHS
Perfluoro-4-ethylcyclohexanesulfonate has been primarily used as an additive in hydraulic fluid formulations that are designed to inhibit erosion in hydraulic systems. The use of the hydraulic fluids in commercial aircraft was identified as a likely source of this compound in surface waters and fish from the Great Lakes of North America; PFECHS contamination is now being reported internationally. PFECHS itself exists as a pair of cis and trans isomers, but commercial materials also contain substantial impurities including constitutional isomers that exhibit the same mass-to-charge ratio as PFECHS during mass spectrometric detection. Unfortunately, the use of inadequately characterised reference standards increases the uncertainty associated with the generated data. For this reason, Wellington Laboratories has prepared a certified reference standard (chemical purity > 98%) which contains a known ratio of the cis/trans isomers of PFECHS (as determined by 19F NMR).
Wellington Laboratories and Greyhound Chromatography working in partnership to bring Testing and Analysis Laboratories the best Reference Standards and Materials on the market. For Over 35 years Wellington Laboratories Inc. and Greyhound Chromatography have been internationally recognised as trusted sources of high quality reference standard solutions for use in environmental / analytical testing and toxicological research.
Wellington Laboratories offers an extensive inventory of individual certified reference standards and solution mixtures of native and mass-labelled halogenated organic compounds including polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, polychlorinated biphenyls, halogenated flame retardants and perfluorinated compounds. Wellington Laboratories also offer a variety of calibration sets and support solutions designed to be used for common regulatory methods or modified in-house methods.
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