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. Author manuscript; available in PMC: 2009 Sep 15.
Published in final edited form as: J Chromatogr A. 2005 Jul 1;1080(1):58–67. doi: 10.1016/j.chroma.2005.02.047

Fig. 2.

Fig. 2

Effect of ion-pairing reagent hydrophobicity on RP-HPLC behaviour of positively charged model peptides. Conditions: linear AB gradient (0.5% acetonitrile/min) at a flow-rate of 0.3 ml/min, where eluent A is 20 mM aq. H3PO4, TFA or PFPA and eluent B is 20 mM of the corresponding ion-pairing reagent in acetonitrile. The sequences of the peptides are shown in Table 1.