Sequential Injection Chemiluminescence Methodology for Ozone Evaluation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

Daniele C M B dos Santos (Autor) Outra; Gracas G A Korn (Autor) Outra; Mauro Korn (Autor) Outra; Paula C A G Pinto (Autor) FFUP; Lucia L M F S Saraiva (Autor) FFUP; Jose L F C Lima (Autor) FFUP

Revista

Título: Analytical Letters

Vol. 44 Nº 4

Páginas: 117-126

ISSN: 0003-2719

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 1 Citação

ISI Web of Science

Scopus - 1 Citação

Classificação Científica

CORDIS: Ciências da Saúde > Ciências farmacológicas

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-002-XRA

DOI: 10.1080/00032719.2010.500769

Resumo (PT): A sequential injection methodology with chemiluminescence detection for the evaluation of residual ozone in waters is presented. The procedure is based on the reaction between luminol and ozone without catalysts. Linear calibration plots were obtained for ozone concentrations between 0.05 and 2.0 mg L-1, with a detection limit of 0.04 mg L-1. The developed methodology was applied to the determination of residual ozone in ozonized waters and the results complied with those furnished by the spectrophotometric reference procedure (relative deviations < 6.3%). The method exhibited good precision (RSD < 3.5%) and the sampling rate was about 140 determinations per hour. <br> <br> Keywords: Chemiluminescence; Luminol; Ozone; Ozonized water; Sequential injection <br> <a target="_blank" href="http://prod.informaworld.com/smpp/content~db=all~content=a933591428~frm=titlelink"> Texto integral </a> <br> <br>

Abstract (EN): A sequential injection methodology with chemiluminescence detection for the evaluation of residual ozone in waters is presented. The procedure is based on the reaction between luminol and ozone without catalysts. Linear calibration plots were obtained for ozone concentrations between 0.05 and 2.0mgL-1, with a detection limit of 0.04mgL-1. The developed methodology was applied to the determination of residual ozone in ozonized waters and the results complied with those furnished by the spectrophotometric reference procedure (relative deviations6.3%). The method exhibited good precision (RSD3.5%) and the sampling rate was about 140 determinations per hour.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10