Amperometric nitrite sensor based on hemoglobin/colloidal gold nanoparticles immobilized on a glassy carbon electrode by a titania sol-gel film.

@article{Yang2005AmperometricNS,
  title={Amperometric nitrite sensor based on hemoglobin/colloidal gold nanoparticles immobilized on a glassy carbon electrode by a titania sol-gel film.},
  author={Weiwei Yang and Yu Bai and Yancai Li and Changqing Sun},
  journal={Analytical and bioanalytical chemistry},
  year={2005},
  volume={382 1},
  pages={
          44-50
        }
}
A novel amperometric nitrite sensor was developed based on the immobilization of hemoglobin/colloidal gold nanoparticles on a glassy carbon electrode by a titania sol-gel film. The sensor shows a pair of well-defined and nearly reversible cyclic voltammogram peaks for Hb Fe(III)/Fe(II) with a formal potential (E degrees ') of -0.370 V, and the peak-to-peak separation at 100 mV s(-1) was 66 mV vs. Ag/AgCl (3.0 M KCl) in a pH 6.9 phosphate buffer solution. The formal potential of the Hb Fe(III… CONTINUE READING