Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/339823
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dc.contributor.authorHAYES, M. H. B.
dc.contributor.authorNOVOTNY, E. H.
dc.contributor.authorFLANAGAN, R.
dc.date.accessioned2022-01-12T12:00:31Z-
dc.date.available2022-01-12T12:00:31Z-
dc.date.created2009-02-09
dc.date.issued2008
dc.identifier.citationIn: ANNUAL INTERNATIONAL MEETING OF THE INTERNATIONAL BIOCHAR INITIATIVE, 2., 2008, Newcastle. Biochar, sustainability and security in a changing climate. Newcastle: International Biochar Initiative, 2008. p. 16. Oral presentations.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/339823-
dc.descriptionNMR provides a powerful tool for studies of compositions of Biochars. However, the usual NMR procedures used for humic and SOM studies do not meet specific requirements for Biochars because pyrogenic materials present strong local magnetic susceptibility heterogeneities. Our data show that uses of CSA-filter and TOSS techniques make the pulse sequences very sensitive to imperfections in the pulses. We will show how we have used Variable Amplitude CP - (VACP)/MAS spectra and composite pulses in the CSA-filter and TOSS pulse sequences. In that way the component functionalities in a humic acid (HA) from a Terra Preta soil were successfully determined. Other techniques will be discussed.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectNMR
dc.subjectTerra preta de índio
dc.titleBiochar and it's characterisations.
dc.typeResumo em anais e proceedings
dc.subject.nalthesaurusSoil organic matter
dc.subject.nalthesaurusBiochar
riaa.ainfo.id339823
riaa.ainfo.lastupdate2022-01-12
dc.contributor.institutionMICHAEL H. B. HAYES, UNIVERSITY OF LIMERICK; ETELVINO HENRIQUE NOVOTNY, CNPS; ROBERT FLANAGAN, UNIVERSITY OF LIMERICK.
Appears in Collections:Resumo em anais de congresso (CNPS)

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