Year-end Sale % OFF 
Abstract
This paper describes a sensitive electrogenerated chemiluminescence (ECL) method for cystine determination with improved analytical characteristics based on the combination of electrochemical parallel catalytic reaction and chemiluminescence (CL) signal sensing. Cystine can be electrochemically reduced and gives a parallel catalytic wave effect in the presence of potassium persulfate. The reaction circulated on the electrode and the amount of the reduced product of the potassium persulfate was accumulated at the electrode surface. Then the reduced product of potassium persulfate reacts with fluorescein to emit a sensitive CL signal. Investigation of the characteristics of the electrochemical and chemiluminescence reactions revealed that the speed of the electrochemical reaction was much faster than that of the subsequent CL reaction, which proved the possibility of the combination of electrochemical parallel catalytic reaction with CL signal sensing. The ECL intensity is linearly related to the cystine concentration in the range from 60 nM to 8.0 μM.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
