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Structures and profiles of novel sulfur-linked chlorophyll derivatives in an Antarctic lake sediment

Squier, Angela H.; Hodgson, Dominic A.; Keely, Brendan J.. 2004 Structures and profiles of novel sulfur-linked chlorophyll derivatives in an Antarctic lake sediment. Organic Geochemistry, 35 (11-12). 1309-1318. 10.1016/j.orggeochem.2004.06.016

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Abstract/Summary

High performance liquid chromatography-mass spectrometry has permitted the identification of a homologous series of novel alkylsulfide derivatives of chlorophyll a containing between one and five carbon atoms, in sediment from a coastal Antarctic lake. The sulfur-containing compounds are present in varying abundance in stratigraphic horizons representing a phase when the lake was a marine basin. Throughout this marine phase photic zone anoxia is recorded by the presence of bacteriochlorophyll c and d-derivatives. Distributional variations between sulfurised and non-sulfurised chlorophyll a-derivatives throughout the sediment section studied indicate that the extent of sulfurisation is not controlled by chlorophyll a abundance alone.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.orggeochem.2004.06.016
Programmes: BAS Programmes > Antarctic Science in the Global Context (2000-2005) > Signals in Antarctica of Past Global Changes
ISSN: 0146-6380
NORA Subject Terms: Earth Sciences
Chemistry
Date made live: 15 Mar 2012 08:24
URI: http://nora.nerc.ac.uk/id/eprint/12443

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