Quantitative analysis of aromatic compounds by laser-induced fluorescence spectroscopy

Gerd Marowsky; Frank Lewitzka; Uwe Buenting; Matthias Niederkrueger

doi:10.1117/12.417453

26 February 2001 Quantitative analysis of aromatic compounds by laser-induced fluorescence spectroscopy

Gerd Marowsky, Frank Lewitzka, Uwe Buenting, Matthias Niederkrueger

Proceedings Volume 4205, Advanced Environmental and Chemical Sensing Technology; (2001) https://doi.org/10.1117/12.417453
Event: Environmental and Industrial Sensing, 2000, Boston, MA, United States

Abstract

We introduce a fiber optical sensor system that can be applied to environmental analysis. The compact system is based on laser-induced, time-resolved fluorescence emission spectroscopy. It uses a miniaturised all solid state laser which is operated at 266 nm as the excitation source and a spectrograph/image intensifier/CCD-camera for time-resolved detection of the fluorescence. The versatility of the instrument is demonstrated by the analysis of various substances using multivariate calibration techniques. Xylene could be analysed in natural water samples in the presence of other mono-aromatics with a detection limit of 10 ?g/l. The fluorescence tracer sulforhodamine G was analysed in river water with a detection limit of 10 ng/l. Furthermore the system is able to detect oil contaminations in soil in the concentration range of 100 ppm and above.

Citation Download Citation

Gerd Marowsky, Frank Lewitzka, Uwe Buenting, and Matthias Niederkrueger "Quantitative analysis of aromatic compounds by laser-induced fluorescence spectroscopy", Proc. SPIE 4205, Advanced Environmental and Chemical Sensing Technology, (26 February 2001); https://doi.org/10.1117/12.417453

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