... L -cysteine at glassy carbon electrode using Nile blue A as a mediator Sens Actuat B 2007, 122, 282–288 Nezamzadeh-Ejhieh, A. ; Hashemi, H.S Voltammetric determination of cysteine using carbon paste ... Chromatograms of cysteine were registered and peak height was calculated using a chromatogram data integrator (Scientific Information Service Corp., Davis, CA, USA) The samples of L -cysteine and hydrogen ... for LC-PAD The bare carbon fiber working electrode was fabricated by the following steps: (1) a single fiber was separated from a bundle of carbon fibers; (2) rational 8, 16, 32 individual fibers...