CC (curve b in Fig. 5A) and HQ (curve b in Fig. 5B). Table 1 showed
a comparison of electroanalytical results for CC and HQ individually
and in mixture at various modified electrodes. Compared with
other phenolic sensors based on poly (aniline-co-p-aminophenol)
(copolymer) film [31], mesoporous platinum [32] and reduced
graphene oxide [30], our proposed sensor displayed wider linear
ranges and lower detection limits. The above results indicated
that the Pt-Au-OSi@CS composites based on the conjugation of Pt
nanoparticles and OSi@CS matrix can greatly improve the electrocatalytic
response of the reduction to CC and HQ.