Rapid detection of fluoride in potable water using a novel fluorogenic compound 7-O-tert-butyldiphenylsilyl-3-cyano-4-methylcoumarin

  • Edwin Otieno Akumu Kabarak University
  • Sellah J Kebenei Kabarak University

Abstract

The study present the synthesis of a new fluoride sensor 7-O-tertbutyldiphenylsilyl-3-cyano-4-methylcoumarin (Si-CHMC) that imparts a blue fluorescence to an aqueous solution in the presence of fluoride ions. Si-CHMC has excellent sensitivity and selectivity towards fluoride. The results further indicate that fluoride concentrations as low as 0.01M can be accurately detected within almost instantly as the response time is within a second. Fluoride testing with Si-CHMC is simple and relatively rapid compared to the conventional methods that require skilled personnel. Hence, the method presented herein can be applied and is particularly useful for monitoring the quality of portable water among communities.

Key words: Fluoride, Detection, Coumarin, chemosensor, fluorescence 

Author Biographies

Edwin Otieno Akumu, Kabarak University
Lecturer, Department of Biological and Physical Sciences
Sellah J Kebenei, Kabarak University
Senior Lecturer, Department of Biological and Physical Sciences

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Published
2019-11-28
How to Cite
Akumu, E. O., & Kebenei, S. J. (2019). Rapid detection of fluoride in potable water using a novel fluorogenic compound 7-O-tert-butyldiphenylsilyl-3-cyano-4-methylcoumarin. Kabarak Journal of Research & Innovation, 8(1), 33-38. Retrieved from http://ojs.kabarak.ac.ke/index.php/journal1/article/view/309