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Proceedings Paper

Detecting weak fluorescence turn-on in the presence of Pb2+ heavy metal ion using coaxial fiber optic sensor
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Paper Abstract

This paper is devoted to examining the ability of a coaxial fiber-optic sensor (FOS) in detecting weak fluorescent light and weak fluorescence “turn-on” in the presence of trace heavy metal ion Pb2+. The captured fluorescent signal is detected by the Ocean Optics QE65000 spectrometer. The stock solutions include Pb2+ acetate in water (0.01 M) and a small molecule probe in water. The preliminary experiment shows that this FOS offers the Pb2+ detection limit (DL) of 1.26×10-4 mg/mL. The advantages, limitations and further improvements of this coaxial FOS are discussed in comparison with the bench-top instruments in terms of the abilities of signal light capture and stray excitation light suppression.

Paper Details

Date Published: 11 October 2013
PDF: 5 pages
Proc. SPIE 8915, Photonics North 2013, 89151I (11 October 2013); doi: 10.1117/12.2037100
Show Author Affiliations
Jianjun Ma, Univ. du Québec en Outaouais (Canada)
Yasser Chiniforooshan, Univ. du Québec en Outaouais (Canada)
Wenhui Hao, Carleton Univ. (Canada)
Wojtek J. Bock, Univ. du Québec en Outaouais (Canada)
Zhi Yuan Wang, Carleton Univ. (Canada)


Published in SPIE Proceedings Vol. 8915:
Photonics North 2013
Pavel Cheben; Jens Schmid; Caroline Boudoux; Lawrence R. Chen; André Delâge; Siegfried Janz; Raman Kashyap; David J. Lockwood; Hans-Peter Loock; Zetian Mi, Editor(s)

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