| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000196509 |
| ISSN: | 0100-4042 |
| Authors: | Oliveira, Mirela C1 Nogueira, Raquel F. Pupo Neto, Jose A. Gomes Jardim, Wilson F Rohwedder, Jarbas J.R |
| Institutions: | 1Universidade Estadual Paulista "Julio de Mesquita Filho", Instituto de Quimica, Araraquara, Sao Paulo. Brasil 2Universidade Estadual de Campinas, Instituto de Quimica, Campinas, Sao Paulo. Brasil |
| Year: | 2001 |
| Season: | Mar-Abr |
| Volumen: | 24 |
| Number: | 2 |
| Pages: | 188-190 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental |
| English 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 |
| Disciplines: | Química |
| Keyword: | Química analítica, Contaminación, Reacción foto-Fenton, Peróxido de hidrógeno, Fotodegradación, Contaminantes orgánicos, Tratamiento de efluentes, Sistema de inyección en flujo, Espectrofotometría |
| Keyword: | Chemistry, Analytical chemistry, Foto-Fenton reaction, Hydrogen peroxide, Photodegradation, Organic contaminants, Effluent treatment, Flow injection system, Spectrophotometry |
| Full text: | Texto completo (Ver HTML) |
