We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Electrochemical behavior of isoproterenol in the presence of uric acid and folic acid at a carbon paste electrode modified with 2,7-bis(ferrocenyl ethyl)fluoren-9-one and carbon nanotubes.
- Authors
Beitollahi, Hadi; Raoof, Jahan-Bakhsh; Karimi-Maleh, Hassan; Hosseinzadeh, Rahman
- Abstract
This paper reports the selective determination of isoproterenol (IP) in the presence of uric acid (UA) and folic acid (FA) using 2,7-bis(ferrocenyl ethyl)fluoren-9-one modified carbon nanotube paste electrode (2,7-BFCNPE) in 0.1 M phosphate buffer solution (PBS) (pH 7.0). The bare carbon paste electrode does not separate the voltammetric signals of IP, UA, and FA. However, 2,7-BFCNPE not only resolved the voltammetric signals of IP, UA, and FA with potential differences of 150, 325, and 475 mV between IP-UA, UA-FA, and IP-FA, respectively, but also dramatically enhanced the oxidation peak currents of them when compared to bare carbon paste electrode. In PBS of pH 7.0, the oxidation current increased linearly with two concentration intervals of IP, one is 0.08 to 17.5 μM and the other is 17.50 to 700.0 μM. The detection limit (3 σ) obtained by DPV was 26.0 ± 2 nM. The practical application of the modified electrode was demonstrated by determining IP in IP injection, urine, and human blood serum.
- Subjects
ISOPROTERENOL; URIC acid; FOLIC acid; ELECTRODES; ELECTROCATALYSIS; CARBON nanotubes
- Publication
Journal of Solid State Electrochemistry, 2012, Vol 16, Issue 4, p1701
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-011-1578-2