Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49125
Title: Solid surface room temperature phosphorescence of polychlorinated dibenzofurans enhanced by a surface active agent
Authors: Rodriguez, J. J.Santana 
Hernandez Garcia, J.
Sosa Ferrera, Z. 
Martin Lazaro, A. J.Bermejo
UNESCO Clasification: 2301 química analítica
Keywords: Room Temperature Phosphorescence
Dibenzofuran
Polychlorinated Dibenzofurans
Heavy Atom
Surfactant
Issue Date: 1995
Publisher: 0003-2719
Journal: Analytical letters 
Abstract: Room temperature phosphorescence characteristics on filter paper of dibenzofuran (DF) and several polychlorinated dibenzofurans (PCDFs) in the presence of different heavy atoms in conjunction with a surface active agent, sodium lauryl sulfate (NaLS), have been studied. The use of this surfactant produces an enhancement of the phosphorescence intensity in all the cases studied, which improve the sensitivity in the determination of DF and PCDFs. The optimization of experimental conditions like type of filter paper, drying and cooling times of the filter paper after spotting the sample, irradiation time, concentration of heavy atom and concentration of surfactant has been carried out. Phosphorescence lifetimes, linear dynamic range, relative standard deviation and limit of detection of the different compounds were also determined.
URI: http://hdl.handle.net/10553/49125
ISSN: 0003-2719
DOI: 10.1080/00032719508000382
Source: Analytical Letters [ISSN 0003-2719], v. 28, p. 2413-2436
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