Universität zu Köln

Kusch, Stephanie ORCID: 0000-0002-2708-4975, Walter, Sunita R. Shah, Hemingway, Jordon D. and Pearson, Ann (2018). Improved chromatography reveals multiple new bacteriohopanepolyol isomers in marine sediments. Org. Geochem., 124. S. 12 - 22. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 0146-6380

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Abstract

Bacteriohopanepolyols (BHPs) are characterized by a large structural diversity, although methodological constraints have limited investigations of the occurrence of isomers among composite BHPs in environmental samples. Here, we describe a novel chromatography method that uses three serial Phenomenex Kinetex C-18 columns to successfully resolve new structural isomers of BHPs commonly observed in marine sediment samples. The investigated samples consistently contain a high diversity of BHP isomers, but their relative abundances differ significantly between samples. These differences in relative abundance have potential to reflect different environmental conditions such as depositional setting or redox conditions. The improved BHP resolution and baseline separation of the new method is promising for accurate quantification and future environmental proxy development and compound-specific isotope work. (C) 2018 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kusch, Stephanie UNSPECIFIED orcid.org/0000-0002-2708-4975 UNSPECIFIED Walter, Sunita R. Shah UNSPECIFIED UNSPECIFIED UNSPECIFIED Hemingway, Jordon D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pearson, Ann UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-172190
DOI:	10.1016/j.orggeochem.2018.07.010
Journal or Publication Title:	Org. Geochem.
Volume:	124
Page Range:	S. 12 - 22
Date:	2018
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	0146-6380
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TRAP MASS-SPECTROMETRY; INTACT BACTERIOHOPANEPOLYOLS; ABSOLUTE-CONFIGURATION; BACTERIAL HOPANOIDS; SIDE-CHAIN; BIOMARKERS; SIGNATURES; DIVERSITY; PRODUCTS; TRANSECT Multiple languages Geochemistry & Geophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17219