Physical and chemical parameters impact on eosin spectral determinations

Authors

  • Liljana Kola University of Tirana, Faculty of Natural Sciences, 10 Center of Applied Nuclear Physics, P.O. Box 85, Tirana

DOI:

https://doi.org/10.20450/mjcce.2010.172

Keywords:

spectral determination, Eosin, fluorescence intensity (IF), synchron scan, artificial tracer

Abstract

The fluorescence ability of Eosin enables its using as an artificial tracer in the water system studies. The problem deals with the application of Eosin to trace and determine water movements within the karstic system and under ground waters. The fluorescence intensity of fluorescent dyes in water samples depends on their physical and chemical properties, such as pH, temperature, presence of oxidants, etc. Besides that, the UV radiation may induce photochemical decomposition of Eosin which can cause large measurement errors. This paper presents the taken results studying the influence of these factors on Eosin fluorescence intensity using the concentration and synchron scan methods. The method we have elaborated for this purpose made it possible to optimize procedures we use to analyze water samples for the presence of Eosin and measure its content, even in trace levels by the means of the Perkin Elmer LS 55 Luminescence Spectrometer.

References

. H. Behrens, Tracer Methods in Isotope Hydrology, IAEA, Vienna, 1983.

. H. Behrens, Water Tracer Chemistry – Factor Determining Performance and Analytics of Tracers; 5th Int. Symp. on Underground Water Tracing, Athens, 1986, pp. 121–55 133.

. W. Kass, Tracing Technique in Geohydrology, Berlin,1994.

. R. Benischke, Fluorescent Tracers in Hydrology, Graz, 1991.

. L. Kola, Optimization of Fluorometric Determinations in Water Samples and Active Coal Samples (Albanian Printing), Ph.D. Thesis, Tirana University, 2008.

. Perkin Elmer, Molecular Spectroscopy, LS 55 Users Guide, Buckinghamshire, UK, 2000.

. Perkin Elmer, Fluorescence Intensity Samples, C520-7440, Booklet, 2000.

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Published

2010-06-15

How to Cite

Kola, L. (2010). Physical and chemical parameters impact on eosin spectral determinations. Macedonian Journal of Chemistry and Chemical Engineering, 29(1), 51–56. https://doi.org/10.20450/mjcce.2010.172

Issue

Vol. 29 No. 1 (2010)

Section

Spectroscopy

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