Potassium permanganate (KMnO_4) sensing based on microfiber sensors

Irawati, Ninik and Yusuf, Nur Atiqah M. and Rahman, Husna Abdul and Yasin, Moh and Ahmad, Harith and Harun, Sulaiman Wadi (2017) Potassium permanganate (KMnO_4) sensing based on microfiber sensors. Applied Optics, 56 (2). p. 224. ISSN 0003-6935

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Official URL: https://doi.org/10.1364/AO.56.000224

Abstract

Two straight microfiber sensors are proposed and demonstrated for the detection of various concentrations of a potassium permanganate (KMnO4) solution. Two types of straight microfibers, namely, silica microfiber and poly(methyl methacrylate) microfiber, have been fabricated by using the flame brushing technique and the direct drawing technique, respectively. Based on the varied KMnO4 concentrations of the solution from 1% to 6%, the measurement of the peak voltage of the transmission power was made. The results show that the sensitivity of the silica microfiber sensor and the polymer microfiber is obtained at 184.5 μW/% and 32.57 μW/% with a resolution of 0.0035% and 0.0064%, respectively. Hence, the silica microfiber is more sensitive than the polymer microfiber for KMnO4 concentration measurements.

Item Type: Article
Uncontrolled Keywords: Esters; Silica
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 27 Dec 2018 04:37
Last Modified: 27 Dec 2018 04:37
URI: http://eprints.um.edu.my/id/eprint/19832

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