Fig. 4From: The Enhanced Photo-Electrochemical Detection of Uric Acid on Au Nanoparticles Modified Glassy Carbon ElectrodeCVs of Au/GCE electrodeposited with different quantity of gold: 57.8 (a), 28.9 (b), 9.6 (c), 4.8 (d), 0.96 μg/cm2 (e), and bare GCE (f) in 0.1 M PBS (pH 7.0) solution containing 1.0 mM UA under visible light illumination. Scan rate 50 mV s−1. Depositing potential −0.2 VBack to article page