Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 494828
Title High throughput pyrogenic carbon (biochar) characterisation and quantification by liquid chromatography
Author(s) Cerqueira, W.V.; Rittl, T.F.; Novotny, E.H.; Pereira Netto, A.D.
Source Analytical Methods 7 (2015)19. - ISSN 1759-9660 - p. 8190 - 8196.
DOI http://dx.doi.org/10.1039/c5ay01242b
Department(s) Chair Soil Biology and Biological Soil Quality
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2015
Abstract

Characterisation and quantification of the carbonaceous polyaromatic structure of pyrogenic carbon (PyC) are of paramount importance to evaluate the role of PyC in soil carbon sequestration. A new method of rapid resolution liquid chromatography with UV diode array detection (RRLC-UV-DAD) was developed and is proposed to quantify benzene polycarboxylic acids (BPCAs), which are considered molecular markers of the aromatic structure of PyC. The proportion of aromatic carbon structures and the degree of aromatic condensation obtained from different PyC, i.e. different biomass pyrolysed at final temperature (450 °C), were quantified using the method of RRLC-UV-DAD. We showed that (i) the RRLC-UV-DAD analysis takes one quarter of the analysis time of conventional HPLC and half of the time of GC analysis, increasing BPCA analysis throughput; (ii) the optimised method showed high overall precision and low limits of quantification and (iii) PyC produced from different tropical biomass exhibited a wide range of BPCA yields and patterns.

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