Application of chromato-mass-spectrometer of high resolution LTQ Orbitrap for determination of perfluorinated acids in natural water with the traditional solid-phase and metall-affine sorbents: method development and optimization

Our current research includes the description of optimization procedure of the mass-spectrometry method for detection of perfluoroalkyl acids in surface waters. The principle possibility of extracting perfluorooctansulfonate from water matrix by metal-affinity chromatography on the new sorbents containing iron (III) ions was shown. The optimized method of chromato-mass-spectrometry analysis provides low limits of detection below 1ng/L that allows the accurate quantification of perfluoroalkyl acids in water samples.