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Proceedings Article

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

[+] Author Affiliations
Jianjun Ma, Yasser Chiniforooshan, Wojtek J. Bock

Univ. du Québec en Outaouais (Canada)

Wenhui Hao, Zhi Yuan Wang

Carleton Univ. (Canada)

Proc. SPIE 8915, Photonics North 2013, 89151I (October 11, 2013); doi:10.1117/12.2037100
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From Conference Volume 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
  • Ottawa, Canada | June 03, 2013

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. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Jianjun Ma ; Yasser Chiniforooshan ; Wenhui Hao ; Wojtek J. Bock and Zhi Yuan Wang
" Detecting weak fluorescence turn-on in the presence of Pb2+ heavy metal ion using coaxial fiber optic sensor ", Proc. SPIE 8915, Photonics North 2013, 89151I (October 11, 2013); doi:10.1117/12.2037100; http://dx.doi.org/10.1117/12.2037100


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