Um experimento de análise em fluxo envolvendo reações enzimáticas e quimiluminescência
Autor: | Leite Oldair Donizeti, Fatibello-Filho Orlando, Rocha Fábio R. P. |
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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 |
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