Abstract
A rapid voltammetric method was developed for the determination of l-ascorbate using methylene blue as a mediator with a glassy carbon electrode. The magnitude of the peak current that occurs near −0.04 V vs. Ag/AgCl is proportional to l-ascorbate concentration in the range of 1.2 × 10−6 to 1.12 × 10−3 M. The limit of detection is 1 × 10−6 M. Eight replicate analyses of 5.0 × 10−5 M and 4.5 × 10−4 M l-ascorbate yielded RSD values of 1.9 and 1.6%, respectively. The method was applied to the determination of ascorbic acid in fruit juices and vitamin C tablets.
Sign-in/Register to access full text options 
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.
