Flow Injection-Catalytic Spectrophotometric Determinationof Trace Phenols Using Stopped-Flow Technique / 分析化学
Chinese Journal of Analytical Chemistry
; (12): 339-341, 2001.
Artigo
em Chinês
| WPRIM (Pacífico Ocidental)
| ID: wpr-410752
Biblioteca responsável:
WPRO
ABSTRACT
A rapid and simple flow-injection-catalytic spectrophotometric method using stopped-flow technique for determination of trace phenols is described. This methods is based on the catalytic effect of phenols on the reaction of rhodamine B and potassium bromate in sulfuric acid medium. The optimal experimental conditions are obtained by using the controlled and weighed centroid simplex method. The linear range of the determination is 0.60~4.00 mg/L for phenols, and the detection limit is 0.1 mg/L with the sample throughput of 34/h. The relative standard deviation of eleven replicate measurements is less than 2.0%. It has been applied for the determiantion of phenols in waste water with satisfactory results:
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Analytical Chemistry
Ano de publicação:
2001
Tipo de documento:
Artigo