Separation and determination of fluorobenzoic acids using ion chromatography-electrospray mass spectrometry

► New method for the determination of fluorobenzoic acids using ion chromatography. ► Comparison of different anion exchange columns. ► Optimization of ESI-MS conditions for FBA determination. ► Separation of 23 fluorobenzoic acids in the ng L−1 range. ► Method with fast and easy sample preparation.