TELKOMNIKA Telecommunication Computing Electronics and Control
Reagentless iron detection in water based on unclad fiber optical sensor

TELKOMNIKA Telecommunication Computing Electronics and Control
Reagentless iron detection in water based on unclad fiber optical sensor

Fiber optical sensor
Iron detection
Unclad fiber

A simple and low-cost fiber based optical sensor for iron detection is
demonstrated in this paper. The sensor head consist of an unclad optical
fiber with the unclad length of 1 cm and it has a straight structure. Results
obtained shows a linear relationship between the output light intensity and
iron concentration, illustrating the functionality of this iron optical sensor.
Based on the experimental results, the sensitivity and linearity are achieved
at 0.0328/ppm and 0.9824 respectively at the wavelength of 690 nm. With
the same wavelength, other performance parameters are also studied.
Resolution and limit of detection (LOD) are found to be 0.3049 ppm and
0.0755 ppm correspondingly. This iron sensor is advantageous in that it does not
require any reagent for detection, enabling it to be simpler and cost-effective in
the implementation of the iron sensing.

Nurul Atika Nabila Jaharudin, Noran Azizan Cholan, Nurfatihah Che Abd Rashid, Nazrah Ilyana Sulaiman, Kim Gaik Tay, Nor Hafizah Ngajikin

http://telkomnika.uad.ac.id

Feb 16, 2023

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