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Rapid determination of total organic carbon concentration in marine sediments using Fourier transform near-infrared spectroscopy (FT-NIRS)

Lookup NU author(s): Christopher Leach, Professor Thomas Wagner, Dr Martin Jones, Professor Steve Juggins, Professor Tony Stevenson

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Abstract

Fourier transform near-infrared spectroscopy (FT-NIRS) together with partial least squares regression was used to produce calibrations between spectra and concentrations of total organic carbon (TOC) in marine sediments collected from widely varying depositional settings. Samples from ODP 664 (oxic Quaternary, low TOC, deep sea ooze) and ODP 959 (anoxic Cretaceous black shale) were analysed using standard instrumental techniques and with FT-NIRS. Unknown TOC concentrations in samples were then predicted using spectra and calibration equations, resulting in higher resolution data without additional time consuming and expensive traditional analyses. Good correlations were achieved between measured and FT-NIRS predicted concentrations (r2 > 0.8), providing evidence that FT-NIRS has a promising potential for the rapid and accurate determination of TOC in a wide variety of sediment types. © 2008 Elsevier Ltd. All rights reserved.


Publication metadata

Author(s): Leach C, Wagner T, Jones M, Juggins S, Stevenson AC

Publication type: Article

Publication status: Published

Journal: Organic Geochemistry

Year: 2008

Volume: 39

Issue: 8

Pages: 910-914

Print publication date: 01/08/2008

ISSN (print): 0146-6380

ISSN (electronic): 1873-5290

URL: http://dx.doi.org/10.1016/j.orggeochem.2008.04.012

DOI: 10.1016/j.orggeochem.2008.04.012


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