Analytical method for the Determination of PFOS and PFOA or related compounds have developed for many year, but the currently method that usually used to evaluate the concentration of PFCs is solid phase extraction (SPE) couple with liquid chromatography-tandem mass spectrometry (LC-MS/MS).
Liquid chromatography (LC) has been used with several conventional detector for the separation of Perfluoroalkylated substances (PFAS).These include a conduct metric detection (Hori et al., 2004) and fluorescence detection (LC-FLU) The latter can only be employed after derivatization (e.g with 3-bromoacetyl-7-methoxycoumarin ) because of the general absence of fluorophores in PFAS (Ohyaetal.,1998).
The development of LC-elelctrosprayionization (ESI) mass spectrometry (MS) and LC tandem MS has enabled substantial improvement of the analytical chemistry of the PFAS. LC-MS and in particular LC-MS/MS can be considered the current standard for analysis of anionic perfluorinated surfactants (European Food safety Authority (EFSA),2008). LC with single quadrupolems, thought a sensitive technique,