Characterization of North Sea drilling cuttings by metal binding form patterns and diffuse reflectance spectroscopy (DRIFT) |
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| Authors: | B Daus I L Marr and H W Zwanziger |
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| Institution: | (1) Institut für Analytik und Umweltchemie, FB Chemie, Martin-Luther-Universität Halle-Wittenberg, Geusaer Strasse, D-06217 Merseburg, Germany;(2) Chemistry Department, The University, AB9 2UE Old Aberdeen, Scotland, UK;(3) Fachbereich Chemie- und Umweltingenieurwesen, Fachhochschule Merseburg, D-06217 Merseburg, Germany |
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| Abstract: | Samples of marine sediments collected in the vicinity of and remote from an oil production platform have been analysed for several metals (Cr, Cu, Fe, Mn, Ni, and Pb) and for total hydrocarbons. The same samples have been examined by diffuse reflectance IR spectroscopy (DRIFT) after drying, and an attempt has been made to classify the samples according to the patterns of the metals and the reflectance spectra, and to correlate this classification with that based on the sampling site. It is suggested that DRIFT is a faster technique than the conventional solvent-extraction IR method for total hydrocarbons and — while less sensitive — is adequate for screening such samples for significant levels of hydrocarbon pollution. Classification of the samples according to the metals present also distinguishes between the two groups of samples. |
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