Characterization of an oligotrophic—eutrophic peat sequence by pyrolysis—mass spectrometry and conventional analysis methods

Halma, G.; Dam, D. van; Haverkamp, Johan; Windig, Willem; Meuzelaar, H.L.C.

doi:10.1016/0165-2370(84)80048-0

Cited by 27 publications

(2 citation statements)

References 10 publications

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“…The compounds used represent more than 99% of the total chromatogram. The quantification method using the abundance of specific ions of a compound [34] is somewhat different from that using peak surfaces of compounds [35]. The advantage of using specific ions instead of peak surface of the compound is that peak deconvolution is hardly ever required in the former.…”

Section: Pyrolysis Gc/ms For the Curie Point Pyrolysis Amentioning

confidence: 99%

Litter Quality ofPopulusSpecies as Affected by Free-AirCO2Enrichment and N-Fertilization

Vermue

Buurman

Hoosbeek

2009

Applied and Environmental Soil Science

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The effect of elevatedCO2and nitrogen fertilization on the molecular chemistry of litter of threePopulusspecies and associated soil organic matter (SOM) was investigated by pyrolysis-gas chromatography/mass spectrometry. The results are based on 147 quantified organic compounds in 24 litter samples. Litter ofP. euramericawas clearly different from that ofP. nigraandP. alba. The latter two had higher contents of proteins, polysaccharides, and cutin/cutan, while the former had higher contents of phenols and benzofurans/pyrans. The difference between replications was at least as large as the effect of treatments, so that no systematic chemical changes were attributable toCO2effect or N-fertilization effect. The chemistry of SOM under the various species and treatments did not show significant changes either. The low number of available replicates that is two was clearly insufficient to overcome the effect of spatial variation on litter chemistry and detect small differences in molecular litter chemistry.

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Section: Pyrolysis Gc/ms For the Curie Point Pyrolysis Amentioning

confidence: 99%

Litter Quality ofPopulusSpecies as Affected by Free-AirCO2Enrichment and N-Fertilization

Vermue

Buurman

Hoosbeek

2009

Applied and Environmental Soil Science

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“…The use of analytical pyrolysis to gain insight into peat decomposition processes has been repeatedly demonstrated (Halma et al, 1984;van Smeerdijk and Boon, 1987;Durig et al, 1989;van der Heijden et al, 1997;Kuder et al, 1998;Huang et al, 1998;Gleixner and Kracht, 2001;Gonz alez et al, 2003;Buurman et al, 2006). Well-established macromolecular markers to differentiate between mosses and vascular plants include lignin phenols from lignin (Tsutsuki et al, 1994;Williams et al, 1998;Bourdon et al, 2000) and 4-isopropenylphenol from sphagnum acid (van der Heijden et al, 1997;Schellekens et al, 2009Schellekens et al, , 2015aMcClymont et al, 2011;Abbott et al, 2013;Swain and Abbott, 2013).…”

Section: Introductionmentioning

confidence: 96%

The use of plant-specific pyrolysis products as biomarkers in peat deposits

Schellekens

Bradley

Kuyper

et al. 2015

Quaternary Science Reviews

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a b s t r a c tPeatlands are archives of environmental change that can be driven by climate and human activity. Proxies for peatland vegetation composition provide records of (local) environmental conditions that can be linked to both autogenic and allogenic factors. Analytical pyrolysis offers a molecular fingerprint of peat, and thereby a suite of environmental proxies. Here we investigate analytical pyrolysis as a method for biomarker analysis. Pyrolysates of 48 peatland plant species were compared, comprising seventeen lichens, three Sphagnum species, four non-Sphagnum mosses, eleven graminoids (Cyperaceae, Juncaceae, Poaceae), five Ericaceae and six species from other families. This resulted in twenty-one potential biomarkers, including new markers for lichens (3-methoxy-5-methylphenol) and graminoids (ferulic acid methyl ester). The potential of the identified biomarkers to reconstruct vegetation composition is discussed according to their depth records in cores from six peatlands from boreal, temperate and tropical biomes. The occurrence of markers for Sphagnum, graminoids and lichens in all six studied peat deposits indicates that they persist in peat of thousands of years old, in different vegetation types and under different conditions. In order to facilitate the quantification of biomarkers from pyrolysates, typically expressed as proportion (%) of the total quantified pyrolysis products, an internal standard (5-aandrostane) was introduced. Depth records of the Sphagnum marker 4-isopropenylphenol from the upper 3 m of a Sphagnum-dominated peat, from samples analysed with and without internal standard showed a strong positive correlation (r 2 ¼ 0.72, P < 0.0005, n ¼ 12). This indicates that application of an internal standard is a reliable method to assess biomarker depth records, which enormously facilitates the use of analytical pyrolysis in biomarker research by avoiding quantification of a high number of products.

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