Determination of perfluorocarboxylic acids in aqueous matrices by ion-pair solid-phase microextraction-in-port derivatization-gas chromatography-negative ion chemical ionization mass spectrometry.

@article{Alzaga2004DeterminationOP,
  title={Determination of perfluorocarboxylic acids in aqueous matrices by ion-pair solid-phase microextraction-in-port derivatization-gas chromatography-negative ion chemical ionization mass spectrometry.},
  author={Roberto Alzaga and Josep Mar{\'i}a Bayona},
  journal={Journal of chromatography. A},
  year={2004},
  volume={1042 1-2},
  pages={155-62}
}
A rapid, selective and simple analytical procedure using tetrabutylammonium as ion pair in conjunction with solid-phase microextraction followed by in-port derivatization-GC-negative ion chemical ionization mass spectrometry was developed. The procedure allows an accurate determination of perfluoroalkylcarboxylic acids in aqueous samples at ng L(-1) levels (i.e. method detection limit 20 ng L(-1) forperfluorodecanoic acid) improving previous GC methods in terms of analysis time and sensitivity… CONTINUE READING

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