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Proceedings Paper

Development of a flow injection analysis (FIA) system for the measurement of heavy metals using a fiber optic chemical sensor based on laser-induced fluorescence
Author(s): Jingdong Zhang; Harald Prestel; Achim Gahr; Reinhard Niessner
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Paper Abstract

The development of a fiber optic sensor system is described, for the on-line detection of heavy metal ions in water. This is based on laser-induced fluorescence spectroscopy of suitable metal-ligand complexes. The sensor system is designed to measure heavy metal ions in the field. Flow injection analysis (FIA) is coupled with the sensor system, to overcome problems of a slow diffusion rate of heavy metals through the membrane of an in situ sensor head. Preliminary experiments show the new FIA system has good reproducibility, a high sample analysis rate and it can measure heavy metal ions (Cu(II), Ni(II), Cd(II) and Zn(II)) at the ppb level, when using the appropriate ligands.

Paper Details

Date Published: 9 May 2000
PDF: 8 pages
Proc. SPIE 4077, International Conference on Sensors and Control Techniques (ICSC 2000), (9 May 2000); doi: 10.1117/12.385590
Show Author Affiliations
Jingdong Zhang, Technical Univ. of Munich (Germany)
Harald Prestel, Technical Univ. of Munich (Germany)
Achim Gahr, Technical Univ. of Munich (Germany)
Reinhard Niessner, Technical Univ. of Munich (Germany)

Published in SPIE Proceedings Vol. 4077:
International Conference on Sensors and Control Techniques (ICSC 2000)
Desheng Jiang; Anbo Wang, Editor(s)

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