Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima

dc.creatorReis, César
dc.creatorCarvalho, Juliana Vanir de Souza
dc.creatorMendonça, Eduardo de Sá
dc.creatorScala Júnior, Newton La
dc.creatorReis, Efrain Lázaro
dc.creatorSchaefer, Carlos Ernesto G. R.
dc.date2018-02-01T09:48:17Z
dc.date2018-02-01T09:48:17Z
dc.date2013-07-05
dc.date.accessioned2023-09-27T21:30:06Z
dc.date.available2023-09-27T21:30:06Z
dc.identifier16787064
dc.identifierhttp://dx.doi.org/10.1590/S0100-40422013000900010
dc.identifierhttp://www.locus.ufv.br/handle/123456789/17070
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8961678
dc.descriptionMonitoring of soil carbon storage may indicate possible effects of climate change on the terrestrial environment and it is therefore necessary to understand the influence of redox potential and chemical characteristics of humic substances (HS) of Antarctic soil. Five soils from King George Island were used. HS were extracted, quantified and characterized by potentiometry and the content of total carbon and nitrogen determined. HS of these soils had greater aliphatic character, low content of phenolic groups, lower acidity and lower formal standard electrode potential, compared to HS of soils from other regions, suggesting they are more likely to be oxidized.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherQuímica Nova
dc.relationv. 36, n. 9, p. 1338-1342, Julho 2013
dc.rightsOpen Access
dc.subjectRedox titrations
dc.subjectRedox potencial
dc.subjectC-CO2 emission
dc.titleCaracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
dc.typeArtigo


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