Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
Monitoring 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 we...
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Sociedade Brasileira de Química
2013
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ftjscielo:oai:scielo:S0100-40422013000900010 2023-05-15T13:56:58+02:00 Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima Carvalho,Juliana Vanir de Souza Mendonça,Eduardo de Sá La Scala Júnior,Newton Reis,César Reis,Efrain Lázaro Schaefer,Carlos Ernesto G. R. 2013-01-01 text/html http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900010 pt por Sociedade Brasileira de Química Química Nova v.36 n.9 2013 redox titrations redox potencial C-CO2 emission journal article 2013 ftjscielo 2015-10-26T18:16:47Z Monitoring 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. Article in Journal/Newspaper Antarc* Antarctic Antártica King George Island SciELO Brazil (Scientific Electronic Library Online) Antarctic King George Island Solos’ ENVELOPE(42.706,42.706,64.750,64.750) |
institution |
Open Polar |
collection |
SciELO Brazil (Scientific Electronic Library Online) |
op_collection_id |
ftjscielo |
language |
Portuguese |
topic |
redox titrations redox potencial C-CO2 emission |
spellingShingle |
redox titrations redox potencial C-CO2 emission Carvalho,Juliana Vanir de Souza Mendonça,Eduardo de Sá La Scala Júnior,Newton Reis,César Reis,Efrain Lázaro Schaefer,Carlos Ernesto G. R. Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima |
topic_facet |
redox titrations redox potencial C-CO2 emission |
description |
Monitoring 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. |
format |
Article in Journal/Newspaper |
author |
Carvalho,Juliana Vanir de Souza Mendonça,Eduardo de Sá La Scala Júnior,Newton Reis,César Reis,Efrain Lázaro Schaefer,Carlos Ernesto G. R. |
author_facet |
Carvalho,Juliana Vanir de Souza Mendonça,Eduardo de Sá La Scala Júnior,Newton Reis,César Reis,Efrain Lázaro Schaefer,Carlos Ernesto G. R. |
author_sort |
Carvalho,Juliana Vanir de Souza |
title |
Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima |
title_short |
Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima |
title_full |
Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima |
title_fullStr |
Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima |
title_full_unstemmed |
Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima |
title_sort |
caracterização potenciométrica de substâncias húmicas extraídas de solos da antártica marítima |
publisher |
Sociedade Brasileira de Química |
publishDate |
2013 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900010 |
long_lat |
ENVELOPE(42.706,42.706,64.750,64.750) |
geographic |
Antarctic King George Island Solos’ |
geographic_facet |
Antarctic King George Island Solos’ |
genre |
Antarc* Antarctic Antártica King George Island |
genre_facet |
Antarc* Antarctic Antártica King George Island |
op_source |
Química Nova v.36 n.9 2013 |
_version_ |
1766264570162184192 |