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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: Amino Acids. 2010 Jul 30;40(2):669–675. doi: 10.1007/s00726-010-0696-y

Fig. 3.

Fig. 3

a The total ion chromatography (TIC) of antagonist [fQWAVGHL-NHEthyl] metabolites after 30 min of incubation in rat hepatocytes. The other peaks were from the incubation media which as confirmed by the control experiments without adding the peptide. b Hydrolysis sites of possible metabolites and their molecular weights [m/z] observed in positive ESI mass spectrometry