Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA
Autor(a) principal: | |
---|---|
Data de Publicação: | 2001 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/1521-4109(200105)13:8/9<760 http://hdl.handle.net/11449/219244 |
Resumo: | In this work we describe a versatile and very sensitive way for copper quantification by potentiometric stripping analysis using gold electrodes obtained from recordable compact disks (CDs). This new source of electrodes (CDtrodes) shown similar performance to the commercial gold electrodes with superior versatility and lower cost. Recordable CDs contains a highly pure gold film with thickness between 50 and 100 nm and superficial area of ca. 100 cm2. The working electrode developed was used successfully in stationary cell and many experimental parameters have been optimized. For copper, the detection limit attained was 30 ng L-1 (600 s deposition time) with remarkable precision (standard deviation of 1.8 % for 20 repetitive measurements using 25 μg L-1 of copper with 60 s of deposition time). The gold electrode developed was used for analysis of copper in sugar cane spirits and tap water samples. The results were compared with those obtained by atomic absorption spectroscopy. |
id |
UNSP_6fdf42cd62c6a411d271ce9330ab760d |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/219244 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSABeveragesCD electrodesCopperGold electrodesPotentiometric stripping analysisSugar cane spiritsTap waterIn this work we describe a versatile and very sensitive way for copper quantification by potentiometric stripping analysis using gold electrodes obtained from recordable compact disks (CDs). This new source of electrodes (CDtrodes) shown similar performance to the commercial gold electrodes with superior versatility and lower cost. Recordable CDs contains a highly pure gold film with thickness between 50 and 100 nm and superficial area of ca. 100 cm2. The working electrode developed was used successfully in stationary cell and many experimental parameters have been optimized. For copper, the detection limit attained was 30 ng L-1 (600 s deposition time) with remarkable precision (standard deviation of 1.8 % for 20 repetitive measurements using 25 μg L-1 of copper with 60 s of deposition time). The gold electrode developed was used for analysis of copper in sugar cane spirits and tap water samples. The results were compared with those obtained by atomic absorption spectroscopy.Instituto de Química Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, CEP 05508-900 - São PauloFaculdade de Engenharia de Guaratinguetá UNESP, GuaratinguetáFaculdade de Engenharia de Guaratinguetá UNESP, GuaratinguetáUniversidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)Richter, Eduardo M.Augelli, Márcio A. [UNESP]Magarotto, SusaneAngnes, Lúcio2022-04-28T18:54:32Z2022-04-28T18:54:32Z2001-07-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject760-764http://dx.doi.org/10.1002/1521-4109(200105)13:8/9<760Electroanalysis, v. 13, n. 8-9, p. 760-764, 2001.1040-0397http://hdl.handle.net/11449/21924410.1002/1521-4109(200105)13:8/9<7602-s2.0-0034961041Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengElectroanalysisinfo:eu-repo/semantics/openAccess2022-04-28T18:54:32Zoai:repositorio.unesp.br:11449/219244Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T18:54:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA |
title |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA |
spellingShingle |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA Richter, Eduardo M. Beverages CD electrodes Copper Gold electrodes Potentiometric stripping analysis Sugar cane spirits Tap water |
title_short |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA |
title_full |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA |
title_fullStr |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA |
title_full_unstemmed |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA |
title_sort |
Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA |
author |
Richter, Eduardo M. |
author_facet |
Richter, Eduardo M. Augelli, Márcio A. [UNESP] Magarotto, Susane Angnes, Lúcio |
author_role |
author |
author2 |
Augelli, Márcio A. [UNESP] Magarotto, Susane Angnes, Lúcio |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Richter, Eduardo M. Augelli, Márcio A. [UNESP] Magarotto, Susane Angnes, Lúcio |
dc.subject.por.fl_str_mv |
Beverages CD electrodes Copper Gold electrodes Potentiometric stripping analysis Sugar cane spirits Tap water |
topic |
Beverages CD electrodes Copper Gold electrodes Potentiometric stripping analysis Sugar cane spirits Tap water |
description |
In this work we describe a versatile and very sensitive way for copper quantification by potentiometric stripping analysis using gold electrodes obtained from recordable compact disks (CDs). This new source of electrodes (CDtrodes) shown similar performance to the commercial gold electrodes with superior versatility and lower cost. Recordable CDs contains a highly pure gold film with thickness between 50 and 100 nm and superficial area of ca. 100 cm2. The working electrode developed was used successfully in stationary cell and many experimental parameters have been optimized. For copper, the detection limit attained was 30 ng L-1 (600 s deposition time) with remarkable precision (standard deviation of 1.8 % for 20 repetitive measurements using 25 μg L-1 of copper with 60 s of deposition time). The gold electrode developed was used for analysis of copper in sugar cane spirits and tap water samples. The results were compared with those obtained by atomic absorption spectroscopy. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-07-09 2022-04-28T18:54:32Z 2022-04-28T18:54:32Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1002/1521-4109(200105)13:8/9<760 Electroanalysis, v. 13, n. 8-9, p. 760-764, 2001. 1040-0397 http://hdl.handle.net/11449/219244 10.1002/1521-4109(200105)13:8/9<760 2-s2.0-0034961041 |
url |
http://dx.doi.org/10.1002/1521-4109(200105)13:8/9<760 http://hdl.handle.net/11449/219244 |
identifier_str_mv |
Electroanalysis, v. 13, n. 8-9, p. 760-764, 2001. 1040-0397 10.1002/1521-4109(200105)13:8/9<760 2-s2.0-0034961041 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Electroanalysis |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
760-764 |
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_ |
1803046313796829184 |