Close overlapping discrimination of polycyclic aromatic hydrocarbons by synchronous scanning at variable-angle solid-phase spectrofluorimetry
✍ Scribed by Luis Fermín Capitán-vallvey; Monsalud del Olmo; Ramiro Avidad; Alberto Navalón; Ignacio de Orbe; JoséLuis Vilchez
- Book ID
- 102984534
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 569 KB
- Volume
- 302
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
The polycyclic aromatic hydrocarbons (PAHs) fluorene, acenaphthene and phenanthrene have been determined in water at trace levels by solid-phase variable-angle synchronous scanning spectrofluorimetry.
These PAHs were previously fixed on Sephadex G-15 gel, and then packed in a quartz cell with a l-mm pathlength. The fluorescence of the PAHs-gel system was measured directly using a solid-surface attachment. The applicable concentration ranges were 0.70-7.00 ng ml-' for fluorene, 4.0-60.0 ng ml-' for acenaphthene and 0.50-5.00 ng ml-' for phenanthrene. The detection limits were 0.07 ng ml I, for fluorene, 0.4 ng ml-' for acenaphthene and 0.05 ng ml-' for phenanthrene, the relative standard deviations being 0.94%, 0.95% and 0.74%, respectively. The method was applied to the determination of the cited PAHs in waters of diverse provenance. The recoveries obtained were 93.0-105.0%.