| Full text | |
| Author(s): |
Mirela C. Oliveira
[1]
;
Raquel F. Pupo Nogueira
[2]
;
José A. Gomes Neto
[3]
;
Wilson F. Jardim
[4]
;
Jarbas J. R. Rohwedder
[5]
Total Authors: 5
|
| Affiliation: | [1] UNESP. Instituto de Química. Departamento de Química Analítica
[2] UNESP. Instituto de Química. Departamento de Química Analítica
[3] UNESP. Instituto de Química. Departamento de Química Analítica
[4] UNICAMP. Instituto de Química. Departamento de Química Analítica
[5] UNICAMP. Instituto de Química. Departamento de Química Analítica
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Química Nova; v. 24, n. 2, p. 188-190, 2001-04-00. |
| Abstract | |
A flow injection spectrophotometric system was projected for monitoring hydrogen peroxide during photodegradation of organic contaminants in photo-Fenton processes (Fe2+/H2O2/UV). Sample is injected manually in a carrier stream and then receives by confluence a 0.1 mol L-1 NH4VO3 solution in 0.5 mol L-1 H2SO4 medium. The product formed shows absorption at 446 nm which is recorded as a peak with height proportional to H2O2 concentration. The performance of the proposed system was evaluated by monitoring the consumption of H2O2 during the photodegradation of dichloroacetic acid solution by foto-Fenton reaction. (AU) | |