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Optical properties and kinetic behavior of chlorine in pure water and swimming pool water using surface plasmon resonance technique


Citation

Wan Yusoff, Wan Yusmawati and Mat Yunus, Wan Mahmood (2007) Optical properties and kinetic behavior of chlorine in pure water and swimming pool water using surface plasmon resonance technique. American Journal of Applied Sciences, 4 (12). pp. 1024-1028. ISSN 1546-9239; ESSN: 1554-3641

Abstract / Synopsis

An optical sensor based on surface plasmon resonance phenomenon for detection of chlorine in pure water and swimming pool water is presented. The measurement was carried out at room temperature using Kretschmann surface plasmon resonance technique. When the air medium outside the metal film is changed to chlorine solution, the resonance angle shifted to the higher value. The shift of resonance angle (δθ) increases linearly with chlorine concentration in which the detection limit and sensor sensitivity could be quantified. In this work, the sensitivity of the detection was estimated to be 0.11°/ppm and 0.12°/ppm for Calcium Hypochlorite (G70) and Trichloroisocyanuric Acid (G90), respectively. The detection limit of this sensor is better than 0.1 ppm for chlorine samples and capable to monitor the chlorine concentration in swimming pool. We observed that the shift in the resonance angle (δθ) decreases with time due to reducing amount of chlorine in the solution. Result from real-time measurement of swimming pool water was compared with simulation result carried out in the laboratory. Both have shown that the resonance angle decreases with time due to releasing of chlorine gas to the atmosphere.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: 10.3844/ajassp.2007.1024.1028
Publisher: Science Publications
Keywords: Calcium hypochlorite; Trichloroisocyanuric acid; Detection limit; Sensor sensitivity; Swimming pool water
Depositing User: Najwani Amir Sariffudin
Date Deposited: 06 Jul 2010 08:25
Last Modified: 29 Nov 2017 16:56
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3844/ajassp.2007.1024.1028
URI: http://psasir.upm.edu.my/id/eprint/7458
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