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Type: Artigo de periódico
Title: Sistema de injeção em fluxo espectrofotométrico para monitorar peróxido de hidrogênio em processo de fotodegradação por reação foto-Fenton
Title Alternative: Flow injection spectrophotometric system for hydrogen peroxide monitoring in photo-Fenton degradation processes
Author: Oliveira, Mirela C.
Nogueira, Raquel F. Pupo
Gomes Neto, José A.
Jardim, Wilson F.
Rohwedder, Jarbas J. R.
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.
Subject: hydrogen peroxide
flow injection analysis
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422001000200007
Date Issue: 1-Apr-2001
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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