Figure A3.
(A) LC-MS profile of VPGLAL pre-incubated with DPP-IV at 37 °C for 3 h. (B) The MS spectrum of fragment GLAL (m/z 373.27), and (C) the MS spectrum of fragment VP (m/z 214.95) derived from VPGLAL after pre-incubation with DPP-IV.
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