Analysis of Specific Perfluorohexane Sulfonate Isomers by Liquid Chromatography-Tandem Mass Spectrometry: Method Development and Application in Source Apportionment

Figure 1

Total ion chromatograms of an ECF PFHxS technical product showing the impacts of organic reagents in the mobile phase on isomeric separation: (a): ammonium acetate (pH 4.0): methanol; (b): ammonium acetate (pH 4.0): acetonitrile.

(a)

(b)