Fig. 4From: Preparation of ursodeoxycholic acid from 7-ketone lithocholic acid by stereoselective electroreductionCyclic voltammograms recorded at the lead electrode at 65 °C at a scan rate of 10 mV s−1: (a) blank cyclic voltammetry in the solvent with 0.08 M KBr, (b) as (a) + 0.12 M DMSO, (c) as (a) + 0.36 M DMSO, and (d) as (a) + 0.6 M DMSO. The solvent was 130 ml of co-solvent (MeOH/H2O = 9.83/1, volume ratio)Back to article page