Optrode Based Polymer for the Estimation of Free Chlorine

Abstract:

This paper describes the construction of low cost optical fiber sensor for the measurement of free chlorine and also residuals. The granules of poly (norborene) s bound with Cyanuric acid are synthesized as polymer film and applied on glass surface, which is used as sensing membrane. The prepared sensor membrane has a good photochemical stability and it would not leach out by continuous exposure to sample solution. The film is used to measure the changes in the absorbance intensity as a result of reaction between Cyanuric acid and free chlorine. The chlorine is used for the destruction of microbiological pathogens to protect the public health from water-borne diseases. This experiment was conducted for various chlorine samples. The sensor possess good repeatability with the range from 1.0 mg/l to 9.0 mg/l with minimal response time and also shows the characteristics such as reproducibility and stable results for more than 70 samples with a period of 5 days.

• Periodical: Applied Mechanics and Materials (Volume 573)
• Pages: 856-860
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.573.856
• Online since: June 2014
• Authors: N. Sivakamasundari*, N. Bharathi, A.R. Neena Sruthi, A. Balaji Ganesh
• Keywords: Free Chlorine, Optical Fiber Sensor, Polymer Membrane, Water Quality

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