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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Online Access: | https://doi.org/10.1590/S0100-40422013000900010 https://doaj.org/article/9dd859711fc2443cb9522aa75adb1b07 |
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ftdoajarticles:oai:doaj.org/article:9dd859711fc2443cb9522aa75adb1b07 2023-05-15T13:33:10+02:00 Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima Juliana Vanir de Souza Carvalho Eduardo de Sá Mendonça Newton La Scala Júnior César Reis Efrain Lázaro Reis Carlos Ernesto G. R. Schaefer 2013-01-01T00:00:00Z https://doi.org/10.1590/S0100-40422013000900010 https://doaj.org/article/9dd859711fc2443cb9522aa75adb1b07 EN ES PT eng spa por Sociedade Brasileira de Química http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900010&lng=en&tlng=en https://doaj.org/toc/1678-7064 1678-7064 doi:10.1590/S0100-40422013000900010 https://doaj.org/article/9dd859711fc2443cb9522aa75adb1b07 Química Nova, Vol 36, Iss 9, Pp 1338-1342 (2013) redox titrations redox potencial C-CO2 emission Chemistry QD1-999 article 2013 ftdoajarticles https://doi.org/10.1590/S0100-40422013000900010 2022-12-31T02:16:17Z 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 Directory of Open Access Journals: DOAJ Articles Antarctic King George Island Solos’ ENVELOPE(42.706,42.706,64.750,64.750) Química Nova 36 9 1338 1342 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Spanish Portuguese |
topic |
redox titrations redox potencial C-CO2 emission Chemistry QD1-999 |
spellingShingle |
redox titrations redox potencial C-CO2 emission Chemistry QD1-999 Juliana Vanir de Souza Carvalho Eduardo de Sá Mendonça Newton La Scala Júnior César Reis Efrain Lázaro Reis Carlos Ernesto G. R. Schaefer Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima |
topic_facet |
redox titrations redox potencial C-CO2 emission Chemistry QD1-999 |
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 |
Juliana Vanir de Souza Carvalho Eduardo de Sá Mendonça Newton La Scala Júnior César Reis Efrain Lázaro Reis Carlos Ernesto G. R. Schaefer |
author_facet |
Juliana Vanir de Souza Carvalho Eduardo de Sá Mendonça Newton La Scala Júnior César Reis Efrain Lázaro Reis Carlos Ernesto G. R. Schaefer |
author_sort |
Juliana Vanir de Souza Carvalho |
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 |
https://doi.org/10.1590/S0100-40422013000900010 https://doaj.org/article/9dd859711fc2443cb9522aa75adb1b07 |
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, Vol 36, Iss 9, Pp 1338-1342 (2013) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900010&lng=en&tlng=en https://doaj.org/toc/1678-7064 1678-7064 doi:10.1590/S0100-40422013000900010 https://doaj.org/article/9dd859711fc2443cb9522aa75adb1b07 |
op_doi |
https://doi.org/10.1590/S0100-40422013000900010 |
container_title |
Química Nova |
container_volume |
36 |
container_issue |
9 |
container_start_page |
1338 |
op_container_end_page |
1342 |
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1766039198335238144 |