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Registros recuperados : 3 | |
1. | | VIANA, M. C. M.; GONTIJO NETO, M. M.; VENTURIN, R. P.; FREIRE, F. M.; ALBERMAZ, W. M.; COELHO, J. S.; MOTA, P. K. Influência de arranjos e clones de eucalipto sobre as características agronômicas do milho no Sistema de Integração Lavoura-Pecuária-Floresta. In: CONGRESSO NACIONAL DE MILHO E SORGO, 29., 2012, Águas de Lindóia. Diversidade e inovações na era dos transgênicos: resumos expandidos. Campinas: Instituto Agronômico; Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2012. p. 2243-2248. 1 CD-ROM. Biblioteca(s): Embrapa Milho e Sorgo. |
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2. | | GONZALEZ, M. H.; SILVA, C. S. da; AMARAL, C. D. B.; BIANCHI, S. R.; OLIVEIRA, L. H. B. de; COELHO, J. S.; OLIVEIRA, A.; NOGUEIRA, A. R. de A. Determination of elemental impurities in acyclovir ointment and raw materials using microwave acid digestion (MW-AD) and ICP-MS. Journal of the Brazilian Chemical Society, v. 28, n. 1, p. 98-105, 2017. Biblioteca(s): Embrapa Pecuária Sudeste; Embrapa Solos. |
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3. | | RIBEIRO, P. C. de O.; VIANA, M. C. M.; GONTIJO NETO, M. M.; FREIRE, F. M.; QUEIROZ, D. S.; COELHO, J. S.; SOUZA, R. S. e; LOURENÇO, J. C. C. Produção de forragem de sorgo consorciado com eucalipto no sistema de integração-lavoura-pecuária-floresta. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012. 1 CD-ROM. Biblioteca(s): Embrapa Milho e Sorgo. |
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Registros recuperados : 3 | |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste; Embrapa Solos. |
Data corrente: |
23/02/2017 |
Data da última atualização: |
10/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
GONZALEZ, M. H.; SILVA, C. S. da; AMARAL, C. D. B.; BIANCHI, S. R.; OLIVEIRA, L. H. B. de; COELHO, J. S.; OLIVEIRA, A.; NOGUEIRA, A. R. de A. |
Afiliação: |
Mario Henrique Gonzalez, UNESP; Caroline Santos da Silva, UFSCar; Clarice Dias Britto do Amaral, UFSCar; SILMARA ROSSANA BIANCHI, CNPS; Luciano Henrique Barca de Oliveira, UNESP; Jessica Silva Coelho, UNESP; Andrea Oliveira, UFPR; ANA RITA DE ARAUJO NOGUEIRA, CPPSE. |
Título: |
Determination of elemental impurities in acyclovir ointment and raw materials using microwave acid digestion (MW-AD) and ICP-MS. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Journal of the Brazilian Chemical Society, v. 28, n. 1, p. 98-105, 2017. |
DOI: |
https://doi.org/10.5935/0103-5053.20160151 |
Idioma: |
Inglês Português |
Conteúdo: |
Inorganic elements present in pharmaceutical products were determined by inductively coupled plasma-mass spectrometer (ICP-MS), employing microwave acid digestion as a sample preparation method. The most abundant isotopes, 75As+ , 65Cu+ , 52Cr+ , 58Ni+ , 208Pb+ , and 51V+ , were determined in acyclovir ointment and its constituents. Elemental impurities in the pharmaceutical samples were determined using an inductively coupled plasma-universal cell technology-mass spectrometer (ICP-UCT-MS) operated in kinetic energy discrimination (KED) and standard mode. The accuracy of the method was assessed by means of addition and recovery experiments. Except for Cr, spiked recoveries of the elements added to the samples before microwave acid digestion (MW-AD) step were between 95.1 and 126%, and after MW-AD step ranged from 85.6 to 132%. Limits of detection (LOD) obtained by proposed method is in agreement to those required by the U.S. Pharmacopeia Convention (USP), showing that the ICP-MS technique is well suited for quantification of these elements. The LOD's (ng L-1) for 51V+ , 52Cr+ , 58Ni+ , 65Cu+ , 75As+ and 208Pb+ in 1% v v-1 HNO3 medium were: 2.2, 81.3, 91.9, 6.9, 0.2 and 3.1, respectively. The concentration of the analytes in these samples presented a wide range, varying from 2.3 ± 0.8 µg kg-1 for As to 3446 ± 47 µg kg-1 for Cr. |
Palavras-Chave: |
Acyclovir; Elemental impurity; Impureza elementar; Pharmaceutical product; Produto farmacêutico. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/156641/1/0103-5053-jbchs-28-01-0098.pdf
|
Marc: |
LEADER 02269naa a2200277 a 4500 001 2067515 005 2021-11-10 008 2017 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.5935/0103-5053.20160151$2DOI 100 1 $aGONZALEZ, M. H. 245 $aDetermination of elemental impurities in acyclovir ointment and raw materials using microwave acid digestion (MW-AD) and ICP-MS.$h[electronic resource] 260 $c2017 520 $aInorganic elements present in pharmaceutical products were determined by inductively coupled plasma-mass spectrometer (ICP-MS), employing microwave acid digestion as a sample preparation method. The most abundant isotopes, 75As+ , 65Cu+ , 52Cr+ , 58Ni+ , 208Pb+ , and 51V+ , were determined in acyclovir ointment and its constituents. Elemental impurities in the pharmaceutical samples were determined using an inductively coupled plasma-universal cell technology-mass spectrometer (ICP-UCT-MS) operated in kinetic energy discrimination (KED) and standard mode. The accuracy of the method was assessed by means of addition and recovery experiments. Except for Cr, spiked recoveries of the elements added to the samples before microwave acid digestion (MW-AD) step were between 95.1 and 126%, and after MW-AD step ranged from 85.6 to 132%. Limits of detection (LOD) obtained by proposed method is in agreement to those required by the U.S. Pharmacopeia Convention (USP), showing that the ICP-MS technique is well suited for quantification of these elements. The LOD's (ng L-1) for 51V+ , 52Cr+ , 58Ni+ , 65Cu+ , 75As+ and 208Pb+ in 1% v v-1 HNO3 medium were: 2.2, 81.3, 91.9, 6.9, 0.2 and 3.1, respectively. The concentration of the analytes in these samples presented a wide range, varying from 2.3 ± 0.8 µg kg-1 for As to 3446 ± 47 µg kg-1 for Cr. 653 $aAcyclovir 653 $aElemental impurity 653 $aImpureza elementar 653 $aPharmaceutical product 653 $aProduto farmacêutico 700 1 $aSILVA, C. S. da 700 1 $aAMARAL, C. D. B. 700 1 $aBIANCHI, S. R. 700 1 $aOLIVEIRA, L. H. B. de 700 1 $aCOELHO, J. S. 700 1 $aOLIVEIRA, A. 700 1 $aNOGUEIRA, A. R. de A. 773 $tJournal of the Brazilian Chemical Society$gv. 28, n. 1, p. 98-105, 2017.
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