Deleterious effect of ammonium extraction from soil assisted by ultrasound

Detalhes bibliográficos
Autor(a) principal: Castro, Jacira Teixeira
Data de Publicação: 2004
Outros Autores: Korn, Mauro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7154
Resumo: p. 41-45
id UFBA-2_83a10392f1ad960653803158c3821327
oai_identifier_str oai:repositorio.ufba.br:ri/7154
network_acronym_str UFBA-2
network_name_str Repositório Institucional da UFBA
repository_id_str 1932
spelling Castro, Jacira TeixeiraKorn, MauroCastro, Jacira TeixeiraKorn, Mauro2012-11-08T19:11:17Z20040026-265Xhttp://www.repositorio.ufba.br/ri/handle/ri/7154v. 78, n. 1p. 41-45Ultrasound has been used to assist extraction procedures from solid samples based on the decrease of gradient concentration in the vicinity of particulate matter and the microjet produced during cavitation. In the present work, the harmful effect yield by ultrasound-assisted ammonium extraction from soil samples was observed by comparing with an extraction process assisted by magnetic stirring. Three soil samples from agricultural areas of Bahia state in Brazil were submitted to both extraction processes and ammonium concentrations for conventional stirring procedure were 25% higher than those obtained by the ultrasound-assisted extraction. This same effect was also observed by irradiating ammonium solutions with low frequency ultrasonic waves. After 5 min of ultrasonic irradiation, more than 25% of the ammonium was lost probably as N2. Possible conversions of N–NH4+to hydrazine, hydroxylamine, nitrite and nitrate were evaluated. In addition, an increasing in nitrate concentration by irradiating solution with high saline concentration independent on the initial ammonium concentration was observed.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-11-08T19:11:17Z No. of bitstreams: 1 1-s2.0-S0026265X04000657-main.pdf: 136635 bytes, checksum: 9205fdd4ce76c518f8d2541a651c1a96 (MD5)Made available in DSpace on 2012-11-08T19:11:17Z (GMT). No. of bitstreams: 1 1-s2.0-S0026265X04000657-main.pdf: 136635 bytes, checksum: 9205fdd4ce76c518f8d2541a651c1a96 (MD5) Previous issue date: 2004Elsevierhttp://dx.doi.org/10.1016/j.microc.2004.03.008reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAAmmonium determinationUltrasonic irradiationUltrasound-assisted extractionDeleterious effect of ammonium extraction from soil assisted by ultrasoundMicrochemical Journalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL1-s2.0-S0026265X04000657-main.pdf1-s2.0-S0026265X04000657-main.pdfapplication/pdf136635https://repositorio.ufba.br/bitstream/ri/7154/1/1-s2.0-S0026265X04000657-main.pdf9205fdd4ce76c518f8d2541a651c1a96MD51LICENSElicense.txtlicense.txttext/plain1809https://repositorio.ufba.br/bitstream/ri/7154/2/license.txt8bb3e3eb871f5854a9ec419f68651b60MD52TEXT1-s2.0-S0026265X04000657-main.pdf.txt1-s2.0-S0026265X04000657-main.pdf.txtExtracted texttext/plain19321https://repositorio.ufba.br/bitstream/ri/7154/3/1-s2.0-S0026265X04000657-main.pdf.txt1e7df4e4fa92e0d72d1d6320724ae796MD53ri/71542022-07-05 14:03:12.944oai:repositorio.ufba.br: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ório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:12Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Deleterious effect of ammonium extraction from soil assisted by ultrasound
dc.title.alternative.pt_BR.fl_str_mv Microchemical Journal
title Deleterious effect of ammonium extraction from soil assisted by ultrasound
spellingShingle Deleterious effect of ammonium extraction from soil assisted by ultrasound
Castro, Jacira Teixeira
Ammonium determination
Ultrasonic irradiation
Ultrasound-assisted extraction
title_short Deleterious effect of ammonium extraction from soil assisted by ultrasound
title_full Deleterious effect of ammonium extraction from soil assisted by ultrasound
title_fullStr Deleterious effect of ammonium extraction from soil assisted by ultrasound
title_full_unstemmed Deleterious effect of ammonium extraction from soil assisted by ultrasound
title_sort Deleterious effect of ammonium extraction from soil assisted by ultrasound
author Castro, Jacira Teixeira
author_facet Castro, Jacira Teixeira
Korn, Mauro
author_role author
author2 Korn, Mauro
author2_role author
dc.contributor.author.fl_str_mv Castro, Jacira Teixeira
Korn, Mauro
Castro, Jacira Teixeira
Korn, Mauro
dc.subject.por.fl_str_mv Ammonium determination
Ultrasonic irradiation
Ultrasound-assisted extraction
topic Ammonium determination
Ultrasonic irradiation
Ultrasound-assisted extraction
description p. 41-45
publishDate 2004
dc.date.issued.fl_str_mv 2004
dc.date.accessioned.fl_str_mv 2012-11-08T19:11:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/7154
dc.identifier.issn.none.fl_str_mv 0026-265X
dc.identifier.number.pt_BR.fl_str_mv v. 78, n. 1
identifier_str_mv 0026-265X
v. 78, n. 1
url http://www.repositorio.ufba.br/ri/handle/ri/7154
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.microc.2004.03.008
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
bitstream.url.fl_str_mv https://repositorio.ufba.br/bitstream/ri/7154/1/1-s2.0-S0026265X04000657-main.pdf
https://repositorio.ufba.br/bitstream/ri/7154/2/license.txt
https://repositorio.ufba.br/bitstream/ri/7154/3/1-s2.0-S0026265X04000657-main.pdf.txt
bitstream.checksum.fl_str_mv 9205fdd4ce76c518f8d2541a651c1a96
8bb3e3eb871f5854a9ec419f68651b60
1e7df4e4fa92e0d72d1d6320724ae796
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)
repository.mail.fl_str_mv
_version_ 1808459410071093248

Registros relacionados