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Journal of Environmental Science and Technology

Year: 2009 | Volume: 2 | Issue: 2 | Page No.: 95-99
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Authors

W. Kanchanamayoon

N. Tatrahun

Keywords

Research Article

Extraction of Eleven Polycyclic Aromatic Hydrocarbons in Water Samples

W. Kanchanamayoon and N. Tatrahun
Eleven polycyclic aromatic hydrocarbons namely; naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[b]fluoranthene, benzo[a]pyrene and benzo[ghi]perylene were extracted simultaneously by solid phase and analysis by gas chromatograph. The LC-18 solid phase showed good recoveries for extraction of 11 PAHs by using 3 mL of the mixture of (1:1:1) dichloromethane: cyclohexane: hexane as eluent, the percentage recoveries were in the ranges of 84.31-97.38 with the standard deviation of 1.56-5.36. The detection limits for solid phase extraction were in the ranges of 0.06-0.55 ppm. Application for analysis of water samples were done by this technique. The concentration of PAHs in water samples were found slightly varied from the location. The advantages of solid phase are solvent consumption, reuse in several times and pre-concentration.
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