Um experimento de análise em fluxo envolvendo reações enzimáticas e quimiluminescência

Autor: Leite Oldair Donizeti, Fatibello-Filho Orlando, Rocha Fábio R. P.
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2004
Předmět:
Zdroj: Química Nova, Vol 27, Iss 2, Pp 337-341 (2004)
Druh dokumentu: article
ISSN: 0100-4042
1678-7064
Popis: An experiment is proposed to introduce some fundamentals of flow analysis, chemiluminescence and kinetic monitoring of enzymatic reactions in undergraduate courses. Chemiluminescence detection is performed with a simple spectrophotometer equipped with a lab-made spiral flow cell constructed from a polyethylene tube. The hydrogen peroxide produced by the glucose oxidation in the presence of glucose oxidase is continuously monitored by the reaction with luminol in alkaline media in a flow injection system. The exercise allows also the discussion of important analytical features and the comparison with different optical methods of analysis.
Databáze: Directory of Open Access Journals