Title of article :
Laser-induced dispersed fluorescence detection of polycyclic aromatic compounds in soil extracts separated by capillary electrochromatography
Author/Authors :
Garguilo، نويسنده , , Michael G and Thomas، نويسنده , , David H and Anex، نويسنده , , Deon S and J. Rakestraw، نويسنده , , David، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Pages :
18
From page :
231
To page :
248
Abstract :
Polycyclic aromatic hydrocarbons (PAHs) and nitrogen containing aromatic compounds (NCACs) are characterized in soil extracts and laboratory standards by capillary electrochromatography (CEC) with laser-induced dispersed fluorescence (LIDF) detection using a liquid-nitrogen cooled charge-coupled device detector. The LIDF detection technique provides information on compound identity and, when coupled with the high separation efficiencies of the CEC technique, proves useful in the analysis of complex mixtures. Differences in fluorescence spectra also provide a means of identifying co-eluting compounds by using deconvolution algorithms. Detection limits range from 0.5 to 96×10−10 M for selected PAHs and 0.9–3.7×10−10 M for selected NCACs. Soil extracts are also injected onto the CEC column to evaluate chromatographic method performance with respect to complex samples and the ability to withstand exposure to environmental samples.
Keywords :
Polynuclear aromatic compounds
Journal title :
Journal of Chromatography A
Serial Year :
2000
Journal title :
Journal of Chromatography A
Record number :
1501741
Link To Document :
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