Data/hora: 21/06/2024 05:36:18

Biblioteca(s): | Embrapa Pecuária Sudeste.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | Internacional - A
Data corrente: | 13/05/2003
Data da última atualização: | 20/06/2022
Autoria: | NÓBREGA, J. A.; TREVIZAN, L. C.; ARAÚJO, G. C. L.; NOGUEIRA, A. R. de A.
Afiliação: | JOAQUIM A. NÓBREGA, UFSCAR; LILIAN C. TREVIZAN, UFSCAR; GEORGIA C. L. ARAÚJO, UFSCAR; ANA RITA DE ARAUJO NOGUEIRA, CPPSE.
Título: | Focused-microwave-assisted strategies for sample preparation.
Ano de publicação: | 2002
Fonte/Imprenta: | Spectrochimica Acta Part B, v.57, n.12, p.1855-1876, 2002.
ISSN: | 0584-8547
DOI: | https://doi.org/10.1016/S0584-8547(02)00172-6
Idioma: | Inglês
Conteúdo: | In this work a general discussion is presented about extraction and digestion procedures, assisted by focused-microwave radiation. Applications involving inorganic, organic, and organometallic analytes in different types of samples are presented, taking into account recent literature data. The main advantages of using focused-microwave radiation are highlighted, such as safety, versatility, control of microwave energy released to the sample, and programmed addition of solutions. All these features can be applied properly in sample preparation for speciation analysis. New routes of development are discussed considering partial digestion by acid-vapor and gradual addition of a liquid sample to hot concentrated acids. Some preliminary results using these strategies are presented to demonstrate their potentiality.
Palavras-Chave: | Focused microwave; Vapor phase digestion.
Thesaurus Nal: | digestion; extraction.
Categoria do assunto: | W Química e Física
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/48461/1/PROCIARAN2002.00122.pdf
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (14444-1) - UPC - AP - DD - PROCI-2002.00122 - NOB - 2002.00122 - DIS