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A new, efficient, one-step method for the removal of organic matter from clay-containing sediments

L. P. Meier and A. P. Menegatti
A new, efficient, one-step method for the removal of organic matter from clay-containing sediments
Clay Minerals (December 1997) 32 (4): 557-563

Abstract

For the purpose of clay examination, a new one-step method for the removal of organic matter was developed using sodium peroxodisulphate combined with different buffers such as sodium hydrogen carbonate, disodium hydrogen phosphate and disodium tetraborate. From an early Cretaceous black shale from the Apennines with a high organic carbon content, the <2 mu m clay fraction was separated and contained 10.9 wt% organic carbon. To prevent decomposition of the clay layers, the period of oxidation was short (25-60 min) and the pH was kept between 5 and 9.5. Up to 98% of carbon was removed by this method.


ISSN: 0009-8558
Coden: CLMIAF
Serial Title: Clay Minerals
Serial Volume: 32
Serial Issue: 4
Title: A new, efficient, one-step method for the removal of organic matter from clay-containing sediments
Affiliation: Swiss Federal Institute of Technology, Laboratory for Clay Mineralogy, Zurich, Switzerland
Pages: 557-563
Published: 199712
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
References: 19
Accession Number: 1998-030679
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 4 tables
N38°00'00" - N45°00'00", E08°19'60" - E17°00'00"
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 199812
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