Main Reaction: xanthine >> uric acid

Reference: PubMed ID: 26720700
Authors: Giuliani P, Zuccarini M, Buccella S, Rossini M, D'Alimonte I, Ciccarelli R, Marzo M, Marzo A, Di Iorio P, Caciagli F
Title: Development of a new HPLC method using fluorescence detection without derivatization for determining purine nucleoside phosphorylase activity in human plasma.
Published: 2016 Jan 15

xanthine --> uric acid