Detection limit of 0.03 ng/L
Achieves ultra-sensitive and stable electrochemical detection of Cu(II) via a dual strategy of surface Fe(II)/Fe(III) valence cycling and photo-assisted oxidation.
Zou, Jin · Liu, Jiawei · Jiantao, Jiang · Chen, Shuxian · Linyu, Wang · Zhao, Guoqing · Lu, Limin
Chemical Engineering Journal 2025