The relationship between the coulometric charge (Q) for the
copper complex bound to dsDNA/GCE and the solution concentration
of [Cu(phendione)(DAP)]2+ (CCu) is presented,It could be
seen that the plot of Q vs. CCu had an “isotherm-like’’ shape,这是文献上关于Q和C的描述。我见电化学技术上也有库仑法,不知道人家是怎么做的。