Publicação
Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure
| Resumo: | The present work describes the development and validation of a high pressure microwave-assisted mineralization procedure for the determination of metals in grape must by spectrometric techniques. Metals of special oenological and food safety importance (Al, Co, Cu, Cd, Pb) were used as model elements to achieve the optimum working conditions. The study was conducted by monitoring their concentration in experimental samples by ETAAS. Different combinations of HNO3 and H2O2 were tested and an optimal volume of 1 mL of each reagent, added to 2 mL of sample, was selected for further studies. In comparison with experimental conditions described in literature for the mineralization of grape must and wine by HPMW, the proposed procedure requires very low reagent consumption. Time and temperature were regarded as factors in the optimization study of microwave oven program, resulting in 72 minutes of extension including ventilation. The procedure trueness and precision were evaluated using grape must and wine samples. For each element three different levels of addition were performed. The recovery range was from 94% (Co) to 113% (Pb) in grape must and from 96% (Cu) to 128% (Al) in wine. Relative standard deviations ranged from 1% (Cd) to 11% (Al) in grape must and from 2% (Cd, Pb) to 9% (Co) in wine (n = 10). The proposed procedure is suitable for grape must and wine mineralization with a view to trace element analysis. |
|---|---|
| Autores principais: | Catarino, S. |
| Outros Autores: | Trancoso, I.M.; Sousa, Raul Bruno de; Curvelo-Garcia, A.S. |
| Assunto: | grape must wine mineralization high pressure microwave digestion HPMW trace element analysis |
| Ano: | 2010 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1868468028863152128 |
|---|---|
| author | Catarino, S. |
| author2 | Trancoso, I.M. Sousa, Raul Bruno de Curvelo-Garcia, A.S. |
| author2_role | author author author |
| author_facet | Catarino, S. Trancoso, I.M. Sousa, Raul Bruno de Curvelo-Garcia, A.S. |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Catarino, S.\"},{\"Person.name\":\"Trancoso, I.M.\"},{\"Person.name\":\"Sousa, Raul Bruno de\"},{\"Person.name\":\"Curvelo-Garcia, A.S.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Catarino, S. Trancoso, I.M. Sousa, Raul Bruno de Curvelo-Garcia, A.S. |
| datacite.date.Accepted.fl_str_mv | 2010-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2011-10-17T14:47:24Z |
| datacite.date.embargoed.fl_str_mv | 2011-10-17T14:47:24Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | grape must wine mineralization high pressure microwave digestion HPMW trace element analysis |
| datacite.titles.title.fl_str_mv | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure Desenvolvimento de um procedimento de mineralização de mosto para análise elementar por digestão por microondas |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Catarino, S. Trancoso, I.M. Sousa, Raul Bruno de Curvelo-Garcia, A.S. |
| dc.date.Accepted.fl_str_mv | 2010-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2011-10-17T14:47:24Z |
| dc.date.embargoed.fl_str_mv | 2011-10-17T14:47:24Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.5/3560 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Estação Vitivinicola Nacional |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | grape must wine mineralization high pressure microwave digestion HPMW trace element analysis |
| dc.title.fl_str_mv | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure Desenvolvimento de um procedimento de mineralização de mosto para análise elementar por digestão por microondas |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The present work describes the development and validation of a high pressure microwave-assisted mineralization procedure for the determination of metals in grape must by spectrometric techniques. Metals of special oenological and food safety importance (Al, Co, Cu, Cd, Pb) were used as model elements to achieve the optimum working conditions. The study was conducted by monitoring their concentration in experimental samples by ETAAS. Different combinations of HNO3 and H2O2 were tested and an optimal volume of 1 mL of each reagent, added to 2 mL of sample, was selected for further studies. In comparison with experimental conditions described in literature for the mineralization of grape must and wine by HPMW, the proposed procedure requires very low reagent consumption. Time and temperature were regarded as factors in the optimization study of microwave oven program, resulting in 72 minutes of extension including ventilation. The procedure trueness and precision were evaluated using grape must and wine samples. For each element three different levels of addition were performed. The recovery range was from 94% (Co) to 113% (Pb) in grape must and from 96% (Cu) to 128% (Al) in wine. Relative standard deviations ranged from 1% (Cd) to 11% (Al) in grape must and from 2% (Cd, Pb) to 9% (Co) in wine (n = 10). The proposed procedure is suitable for grape must and wine mineralization with a view to trace element analysis. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/0bc0178c-a09d-4953-8d5b-b8b4f89afbd2/download |
| id | ul_b2ee13ca2d3f41d86aff1de7f22f6fcd |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.5/3560 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10400.5/3560 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Catarino, S. Trancoso, I.M. Sousa, Raul Bruno de Curvelo-Garcia, A.S. |
| publishDate | 2010 |
| publisher.none.fl_str_mv | Estação Vitivinicola Nacional |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engEstação Vitivinicola NacionalporThe present work describes the development and validation of a high pressure microwave-assisted mineralization procedure for the determination of metals in grape must by spectrometric techniques. Metals of special oenological and food safety importance (Al, Co, Cu, Cd, Pb) were used as model elements to achieve the optimum working conditions. The study was conducted by monitoring their concentration in experimental samples by ETAAS. Different combinations of HNO3 and H2O2 were tested and an optimal volume of 1 mL of each reagent, added to 2 mL of sample, was selected for further studies. In comparison with experimental conditions described in literature for the mineralization of grape must and wine by HPMW, the proposed procedure requires very low reagent consumption. Time and temperature were regarded as factors in the optimization study of microwave oven program, resulting in 72 minutes of extension including ventilation. The procedure trueness and precision were evaluated using grape must and wine samples. For each element three different levels of addition were performed. The recovery range was from 94% (Co) to 113% (Pb) in grape must and from 96% (Cu) to 128% (Al) in wine. Relative standard deviations ranged from 1% (Cd) to 11% (Al) in grape must and from 2% (Cd, Pb) to 9% (Co) in wine (n = 10). The proposed procedure is suitable for grape must and wine mineralization with a view to trace element analysis.application/pdfporGrape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedureAlternativeTitleporDesenvolvimento de um procedimento de mineralização de mosto para análise elementar por digestão por microondasCatarino, S.Trancoso, I.M.Sousa, Raul Bruno deCurvelo-Garcia, A.S.HostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptISSNIsPartOf0254-02232011-10-17T14:47:24Z20102010-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.5/3560http://purl.org/coar/access_right/c_abf2open accessgrape mustwinemineralizationhigh pressure microwave digestionHPMWtrace element analysis242248 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/0bc0178c-a09d-4953-8d5b-b8b4f89afbd2/downloadCiência e Técnica Vitivinicola8793 |
| spellingShingle | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure Catarino, S. grape must wine mineralization high pressure microwave digestion HPMW trace element analysis |
| status | SINGLETON |
| subject.fl_str_mv | grape must wine mineralization high pressure microwave digestion HPMW trace element analysis |
| title | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure |
| title_full | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure |
| title_fullStr | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure |
| title_full_unstemmed | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure |
| title_short | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure |
| title_sort | Grape must mineralization by high pressure microwave digestion for trace element analysis: development of a procedure |
| topic | grape must wine mineralization high pressure microwave digestion HPMW trace element analysis |
| topic_facet | grape must wine mineralization high pressure microwave digestion HPMW trace element analysis |
| url | http://hdl.handle.net/10400.5/3560 |
| visible | 1 |