▎ 摘　　要

NOVELTY - The invention relates to a process for preparing a composite based on graphenes and metal nano particles employed to change a carbamazepine detector electrode. According to the invention, the process consists in the synthesis, using the RF-cCVD method, on a catalytic system made of bimetal AuAg nano particles supported on magnesium oxide, using methane as a carbon source, to result in a graphene and bimetal AuAg nano particles composite.