Sequential Injection Chemiluminescence Methodology for Ozone Evaluation

• Type: Article in International Scientific Journal
• Date: 2011

Authors

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

Journal

Title: Analytical Letters

Vol. 44 No. 4

Pages: 117-126

ISSN: 0003-2719

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 1 Citation

ISI Web of Science

Scopus - 1 Citation

Scientific classification

CORDIS: Health sciences > Pharmacological sciences

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10