“…This approach could be achieved via two steps, namely: (i) assembling highly dispersed GO onto electrode surface by solution deposition and ii) carrying an electrochemical reduction of deposited GO layers into electrochemically reduced graphene oxide (ERGO) [32,35,36,37,38,39,40]. Recently, a much more straightforward process was proposed using a direct electrochemical reduction of GO solutions into ERGO which is (electro-)deposited onto the electrode surfaces [41,42,43,44]. The successfully prepared ERGO electrochemical sensors could be applied for determination of various substances such as phenolic compounds [41,44], biogenic amines [43], dopamine, ascorbic and uric acid [45,46], glucose [47].…”