Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis
Autor(a) principal: | |
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Data de Publicação: | 1996 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.26850/1678-4618EQJ.V21.1.1996.P19-42 http://hdl.handle.net/11449/229698 |
Resumo: | The mam variables found on procedure of the dissolution silicate rocks using acid dissolution in teflon open vessel for analysis of micro elements by ICP-AES has been determined. The results obtained for some samples showed strong dependence of the rock mineralogical composition, then it was recommended an alkaline fusion step after acid dissolution. The decomposition procedure use 20 ml of an acid mixture ofHF:HN03in the proportion 3:1 for a fraction of250 mg pulverized sample. The recommended temperatures were 60°C for attack and 9(PC for acid volatilization. The fusion step with 50 mg LiB0? at 1000°C may be used if non-attacked residue is observed in the solution. The whole time was 6 h per sample. Nine types os silicate rocks that show mineralogical and chemical different compositions were chosen for obtaining the optimization of the variables. The elements used were Ce, Y. Yb and Zr. In addition, ultrassonic nebulization has been used. The percentual standard deviations obtained for five determinations were 0.7 and 1.4 for triplicate samples. The mineralogical and textural information from the petrographical analysis of the samples indicated the need of increasing the fusion step on the optimized procedure. |
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Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysisOtimização dos procedimento de solubilização de rochas silicáticas em recipientes abertos para análise por icp-aesAnalytical geochemistryDissolu tion of geological matrixInductively coupled plasma atomic emission spectrometrySilicate rock analysisUltrassonic nebulizationThe mam variables found on procedure of the dissolution silicate rocks using acid dissolution in teflon open vessel for analysis of micro elements by ICP-AES has been determined. The results obtained for some samples showed strong dependence of the rock mineralogical composition, then it was recommended an alkaline fusion step after acid dissolution. The decomposition procedure use 20 ml of an acid mixture ofHF:HN03in the proportion 3:1 for a fraction of250 mg pulverized sample. The recommended temperatures were 60°C for attack and 9(PC for acid volatilization. The fusion step with 50 mg LiB0? at 1000°C may be used if non-attacked residue is observed in the solution. The whole time was 6 h per sample. Nine types os silicate rocks that show mineralogical and chemical different compositions were chosen for obtaining the optimization of the variables. The elements used were Ce, Y. Yb and Zr. In addition, ultrassonic nebulization has been used. The percentual standard deviations obtained for five determinations were 0.7 and 1.4 for triplicate samples. The mineralogical and textural information from the petrographical analysis of the samples indicated the need of increasing the fusion step on the optimized procedure.Depaitamento de Petrolcgia e Metalogenia Institute de Geociencias e Ci and Ncias Exatas - Unesp, SPDepaitamento de Petrolcgia e Metalogenia Institute de Geociencias e Ci and Ncias Exatas - Unesp, SPUniversidade Estadual Paulista (UNESP)Filho, Oscar Bahia [UNESP]Moreno, Maria Margarita Torres [UNESP]Nardy, Antonio Jose Ranalli [UNESP]Oliveira, Marcos Aurelio Farias De [UNESP]Silva, Jose Angelo Ferreira Da [UNESP]2022-04-29T08:35:12Z2022-04-29T08:35:12Z1996-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article69-77http://dx.doi.org/10.26850/1678-4618EQJ.V21.1.1996.P19-42Ecletica Quimica, v. 21, n. 1, p. 69-77, 1996.1678-46180100-4670http://hdl.handle.net/11449/22969810.26850/1678-4618EQJ.V21.1.1996.P19-422-s2.0-85117035657Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEcletica Quimicainfo:eu-repo/semantics/openAccess2022-04-29T08:35:12Zoai:repositorio.unesp.br:11449/229698Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:45:41.382848Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis Otimização dos procedimento de solubilização de rochas silicáticas em recipientes abertos para análise por icp-aes |
title |
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis |
spellingShingle |
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis Filho, Oscar Bahia [UNESP] Analytical geochemistry Dissolu tion of geological matrix Inductively coupled plasma atomic emission spectrometry Silicate rock analysis Ultrassonic nebulization |
title_short |
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis |
title_full |
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis |
title_fullStr |
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis |
title_full_unstemmed |
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis |
title_sort |
Procedure optimization of silicate rocks dissolution in open vissels for icp-aes analysis |
author |
Filho, Oscar Bahia [UNESP] |
author_facet |
Filho, Oscar Bahia [UNESP] Moreno, Maria Margarita Torres [UNESP] Nardy, Antonio Jose Ranalli [UNESP] Oliveira, Marcos Aurelio Farias De [UNESP] Silva, Jose Angelo Ferreira Da [UNESP] |
author_role |
author |
author2 |
Moreno, Maria Margarita Torres [UNESP] Nardy, Antonio Jose Ranalli [UNESP] Oliveira, Marcos Aurelio Farias De [UNESP] Silva, Jose Angelo Ferreira Da [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Filho, Oscar Bahia [UNESP] Moreno, Maria Margarita Torres [UNESP] Nardy, Antonio Jose Ranalli [UNESP] Oliveira, Marcos Aurelio Farias De [UNESP] Silva, Jose Angelo Ferreira Da [UNESP] |
dc.subject.por.fl_str_mv |
Analytical geochemistry Dissolu tion of geological matrix Inductively coupled plasma atomic emission spectrometry Silicate rock analysis Ultrassonic nebulization |
topic |
Analytical geochemistry Dissolu tion of geological matrix Inductively coupled plasma atomic emission spectrometry Silicate rock analysis Ultrassonic nebulization |
description |
The mam variables found on procedure of the dissolution silicate rocks using acid dissolution in teflon open vessel for analysis of micro elements by ICP-AES has been determined. The results obtained for some samples showed strong dependence of the rock mineralogical composition, then it was recommended an alkaline fusion step after acid dissolution. The decomposition procedure use 20 ml of an acid mixture ofHF:HN03in the proportion 3:1 for a fraction of250 mg pulverized sample. The recommended temperatures were 60°C for attack and 9(PC for acid volatilization. The fusion step with 50 mg LiB0? at 1000°C may be used if non-attacked residue is observed in the solution. The whole time was 6 h per sample. Nine types os silicate rocks that show mineralogical and chemical different compositions were chosen for obtaining the optimization of the variables. The elements used were Ce, Y. Yb and Zr. In addition, ultrassonic nebulization has been used. The percentual standard deviations obtained for five determinations were 0.7 and 1.4 for triplicate samples. The mineralogical and textural information from the petrographical analysis of the samples indicated the need of increasing the fusion step on the optimized procedure. |
publishDate |
1996 |
dc.date.none.fl_str_mv |
1996-01-01 2022-04-29T08:35:12Z 2022-04-29T08:35:12Z |
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://dx.doi.org/10.26850/1678-4618EQJ.V21.1.1996.P19-42 Ecletica Quimica, v. 21, n. 1, p. 69-77, 1996. 1678-4618 0100-4670 http://hdl.handle.net/11449/229698 10.26850/1678-4618EQJ.V21.1.1996.P19-42 2-s2.0-85117035657 |
url |
http://dx.doi.org/10.26850/1678-4618EQJ.V21.1.1996.P19-42 http://hdl.handle.net/11449/229698 |
identifier_str_mv |
Ecletica Quimica, v. 21, n. 1, p. 69-77, 1996. 1678-4618 0100-4670 10.26850/1678-4618EQJ.V21.1.1996.P19-42 2-s2.0-85117035657 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ecletica Quimica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
69-77 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129115036844032 |