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2599986 
Journal Article 
Gas chromatography-optical fiber detector for the speciation of aromatic hydrocarbons in confined areas 
Silva, LI; Rocha-Santos, TA; Duarte, AC 
2008 
Yes 
Analytical Sciences
ISSN: 0910-6340
EISSN: 1348-2246 
JAPAN SOC ANALYTICAL CHEMISTRY 
TOKYO 
Analytical Sciences 
24 
963-966 
English 
An analytical method, based on separation with gas chromatography (GC) and detection with optical fiber (OF), was used for the separation, detection and quantification of benzene, toluene, ethylbenzene, p-xylene, m-xylene and o-xylene. The use of OF as a detector is based on the variations of the reflected optical power detected when the aromatic compounds eluted from the GC column are sorbed in a thin polymeric film on a single-mode OF. General figures of merit, such as the analytical time, analytical error and analytical performance of GC-OF were similar to those of the classical analytical methods, such as a gas chromatography-flame ionization detector (GC-FID). However, the developed GC-OF method constitutes a much less expensive alternative for the speciation of aromatic hydrocarbons compounds, with high accuracy, and being most suitable for actual monitoring work on confined environments. 
Chemistry 
• Ethylbenzene
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