简介:In this paper, the electrochemical behavior of rutin on a gold nanoparticles/ethylenediamine/multi-wall
carbon nanotubes modified glassy carbon electrode (AuNPs/en/MWNTs/GCE) was investigated and the
electrochemical pa简介:In this paper, the electrochemical behavior of rutin on a gold nanoparticles/ethylenediamine/multi-wall
carbon nanotubes modified glassy carbon electrode (AuNPs/en/MWNTs/GCE) was investigated and the
electrochemical parameters of rutin were calculated. Rutin effectively accumulated on the AuNPs/en/
MWNTs/GCE and caused a pair of redox peaks at around 487 mV and 432 mV (vs. SCE) in 0.1 M phosphate
buffer solution (pH 3.5). Under optimized conditions, the anodic peak current was linear to the
rutin concentration in the range of 4.8 108 M9.6 107 M. The regression equation was:
ipa = 2.3728Crutin0.1782 (ipa: 105 A, Crutin: lM, r = 0.9973). The detection limit of 3.2 108 M was
obtained. The proposed method was successfully used to the determination of rutin content in tablet
samples with satisfactory results.详细>