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Determination of Concentration and Source of n-alkanes in Surface Sediments from Southern Coast of the Caspian Sea (Anzali Port)
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Rokhsareh Azimi Yancheshmeh   , Ali Reza Riyahi Bakhtiari , Samar Mortazavi |
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Abstract: (11611 Views) |
| Surficial sediments from the South-Western coast of the Caspian Sea (Anzali Port) were studied to
determine the concentration and probable source of normal alkanes. In this regard, nine surface samples
were collected and analyzed by gas chromatography–mass spectrometry (GC–MS). Concentrations of
these compounds ranged from 743 to 6146 μg g-1 dw (average 2700 ± 1612 μg g-1 dw). Normal alkenes
with long chain length were dominant in all studied stations. Based on used indices in this study, it was
concluded that n-alkanes in sediments mainly come from petrogenic source, that was included the old oil
spills (significant amount of UCM in all chromatograms) and recent inputs (high values for the ratios of n-
C17/Pr and n-C18/Phy at some sampling sites). However, a contribution of hydrocarbons from higher and
aquatic plants in the study area was observed. |
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| Keywords: Normal alkane, Sediment, Anzali city, Caspian Sea. |
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Full-Text [PDF 140 kb]
(2517 Downloads)
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Type of Study: Research/ Original/ Regular Article |
Received: 2014/06/22 | Revised: 2015/02/28 | Accepted: 2014/06/22 | ePublished: 2014/06/22
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