Direct measurement of organic carbon content in soils by the Leco CR-12 carbon analyzer

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TypeArticle
Journal titleCommunications in Soil Science and Plant Analysis
Volume29
Issue1-2
Pages1521; # of pages: 7
SubjectSoil organic carbon content, Leco-CR-12 carbon analyzer, direct measurement organic carbon
AbstractA straightforward procedure is described for soil organic carbon (C) measurement in soil samples that may contain carbonates by using the Leco CR-12 Carbon Analyzer. At a temperature of 840°C, a measured oxygen flow of3.6 L min1, lancing flow of 1.0 L min1, soil organic C content can be directly measured on 0.20 to 0.40 g of samples, which have previously been ground to pass 40-mesh sieve, for most medium- and fine-textured soils. The organic C is combusted and measured within 2 min. A larger sample size of up to 2.5 g is suggested for sandy soils of low organic C content.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number50825
19901
NPARC number20378415
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Record identifier3f660855-1fe3-44fb-bc11-d2c3ca6e1794
Record created2012-07-24
Record modified2016-05-09
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