| Full text | |
| Author(s): |
Raymundo-Pereira, Paulo A.
[1, 2]
;
Teixeira, Marcos F. S.
[2]
;
Caetano, Fabio R.
[3]
;
Bergamini, Marcio F.
[3]
;
Marcolino-Junior, Luiz H.
[3]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13566590 Sao Carlos, SP - Brazil
[2] Univ Estadual Paulista, Fac Ciencias & Tecnol, Dept Fis Quim & Biol, Presidente Prudente, SP - Brazil
[3] Univ Fed Parana, Dept Quim, LabSensE, BR-81531990 Curitiba, Parana - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Electroanalysis; v. 27, n. 10, p. 2371-2376, OCT 2015. |
| Web of Science Citations: | 5 |
| Abstract | |
A simple and fast method based on electrochemical measurements was proposed for estimation of total polyphenols using a carbon paste modified electrode. The method was based on catalytic response exhibited by a ruthenium complex {[}(bpy)(2)(NH3)Ru-III(mu-O)Ru-III(NH3)(bpy)(2)](4+) in presence of gallic acid (GA). Calibration plots using chronoamperometry (CA) showed a linear response for GA concentrations ranging from 6.6x10(-6) to 1.9x10(-4)molL(-1) with a detection limit of 4.9x10(-7)molL(-1). Comparative studies using the official method revealed a good agreement between methods suggesting that the proposed method can be applied for polyphenol estimation without any sample treatment. (AU) | |
| FAPESP's process: | 12/17689-9 - Preparation and characterization of bifunctional-nanostructured surfaces of Au-Pt obtained via templates for application in sensors and biosensors |
| Grantee: | Paulo Augusto Raymundo Pereira |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 08/07298-7 - Study of polymeric films of thiophene-Schiff base complexes in the construction of electrochemical sensors |
| Grantee: | Paulo Augusto Raymundo Pereira |
| Support Opportunities: | Scholarships in Brazil - Master |