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Proceedings Paper

Room-temperature phosphorescence fiber optic instrumentation for simultaneous multiposition or multianalyte monitorization of environmental chemical parameters
Author(s): Juan Diaz Garcia; Jose Manuel Costa Fernandez; N. Bordel; Alfredo Sanz-Medel
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Paper Abstract

In this work it is presented the design and the preliminary results of a new prototype of luminometer, that allows to distinguish the signals from the same analyte (dissolved O2) in different places (multiposition analysis) by using room temperature phosphorescence (RTP) measurements. The system uses an Intensified Charge-Coupled Device (ICCD) as detector. CCD detectors can provide multichannel detection and this offers a very important potential to measure simultaneously and distinguish the signals from different optical fibers placed at different height at the monochromator entrance slit. Bifurcated optical fibers are used to carry the light from the excitation source (a Xe flash lamp) to the sensing region and to conduct the RTP emission to the monochromator entrance slit. The developed system is used with four bifurcated optical fibers in order to measure simultaneously the RTP emission from four sensing materials placed at the end of bifurcated optical fibers.

Paper Details

Date Published: 21 December 1999
PDF: 10 pages
Proc. SPIE 3853, Environmental Monitoring and Remediation Technologies II, (21 December 1999); doi: 10.1117/12.372859
Show Author Affiliations
Juan Diaz Garcia, Univ. of Oviedo (Spain)
Jose Manuel Costa Fernandez, Univ. of Oviedo (United States)
N. Bordel, Univ. of Oviedo (Spain)
Alfredo Sanz-Medel, Univ. of Oviedo (Spain)

Published in SPIE Proceedings Vol. 3853:
Environmental Monitoring and Remediation Technologies II
Tuan Vo-Dinh; Robert L. Spellicy, Editor(s)

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