Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima

Potentiometric characterization of humic substances extracted from Antarctic Marine soils

dc.contributorUniversidade do Estado de Minas Gerais (UEMG)
dc.contributorUniversidade Federal do Espírito Santo (UFES)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal de Viçosa (UFV)
dc.creatorCarvalho, Juliana Vanir de Souza
dc.creatorMendonça, Eduardo de Sá
dc.creatorLa Scala Júnior, Newton [UNESP]
dc.creatorReis, César
dc.creatorReis, Efrain Lázaro
dc.creatorSchaefer, Carlos Ernesto G. R.
dc.date2014-09-30T18:18:21Z
dc.date2014-09-30T18:18:21Z
dc.date2013
dc.date.accessioned2023-09-09T09:07:26Z
dc.date.available2023-09-09T09:07:26Z
dc.identifierhttp://dx.doi.org/10.1590/S0100-40422013000900010
dc.identifierQuímica Nova. Sociedade Brasileira de Química, v. 36, n. 9, p. 1338-1342, 2013.
dc.identifier0100-4042
dc.identifierhttp://hdl.handle.net/11449/109450
dc.identifier10.1590/S0100-40422013000900010
dc.identifierS0100-40422013000900010
dc.identifierWOS:000327310700010
dc.identifierS0100-40422013000900010.pdf
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8759174
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.descriptionUniversidade do Estado de Minas Gerais Departamento de Ciências Exatas e da Terra
dc.descriptionUniversidade Federal do Espírito Santo Departamento de Produção Vegetal
dc.descriptionUniversidade Estadual Paulista
dc.descriptionUniversidade Federal de Viçosa Departamento de Química
dc.descriptionUniversidade Federal de Viçosa Departamento de Solos
dc.descriptionUniversidade Estadual Paulista
dc.format1338-1342
dc.languagepor
dc.publisherSociedade Brasileira de Química
dc.relationQuímica Nova
dc.relation0.646
dc.relation0,255
dc.rightsAcesso aberto
dc.sourceSciELO
dc.subjectredox titrations
dc.subjectredox potencial
dc.subjectC-CO2 emission
dc.titleCaracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
dc.titlePotentiometric characterization of humic substances extracted from Antarctic Marine soils
dc.typeArtigo


Este ítem pertenece a la siguiente institución