2024-03-29T05:38:50Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/346392018-09-12T12:00:58Zcom_10261_15com_10261_6col_10261_268
Río Andrade, José Carlos del
McKinney, Dan E.
Knicker, Heike
Nanny, Mark A.
Minard, Robert D.
Hatcher, Patrick G.
2011-04-14T09:33:20Z
2011-04-14T09:33:20Z
1998
Journal of Chromatography A 823: 433-448 (1998)
http://hdl.handle.net/10261/34639
http://dx.doi.org/10.13039/100000001
A new analytical procedure, tetramethylammonium hydroxide thermochemolysis, was used to structurally characterize a variety of bio-and geo-polymers. The technique cleaves esters and some ethers in macromolecular organic matter, yielding low-molecular-mass monomers such as methyl esters of carboxylic acids and methyl ethers of alcohols that are amenable to gas chromatographic analysis. This procedure can be conducted in sealed glass ampoules, which means that it can be easily implemented in any laboratory having gas chromatographic capabilities, in contrast to other chemolytic or pyrolytic
procedures. A set of biogeomacromolecules, ranging from gymnosperm and angiosperm woods, natural polyesters such as cutin, dissolved organic matter in natural and oceanic waters, and humic substances were characterized with this procedure. The information obtained provides molecular-level details which can be used to infer structural composition.
eng
openAccess
Thermochemolysis
Geochemistry
Tetramethylammonium hydroxide
Lignin
Polyesters
Humic substances
Structural characterization of bio- and geomacromolecules by off-line thermochemolysis with tetramethylammonium hydroxide (TMAH)
artículo