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dc.contributor.authorNOGUEIRA, A. R. de A.pt_BR
dc.contributor.authorARAÚJO, G. C. L.pt_BR
dc.contributor.authorNÓBREGA, J. A.pt_BR
dc.date.accessioned2015-02-21T09:40:32Z-
dc.date.available2015-02-21T09:40:32Z-
dc.date.created2000-04-20pt_BR
dc.date.issued2000pt_BR
dc.identifier.citationIn: PITTCON, 21., 2000, New Orleans. Abstracts... New Orleans: PITTCON, 2000.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/44768pt_BR
dc.descriptionMicrawave decomposition has been increasingly used hr a large number of samples. A method using an open vessel microwave was used for biological sample preparation with nitric acid vapors under atmospheric pressure. A lab made Teflon@ support suited with four cups, which received the samples, was inserted in the microwave vessel. These cups were used to weight 30 mg of certi5ed re5wence materials such as spinach and apple leaves, which received 150 pL of d.i. water to improve the micrawave e%ciency. This mixture was exposed to acid vapor stemmed from 15 mL of concentrated nitrie acid plsced in the bottom of the vessel hr decompoeition. The maximum microwave temperature, 115'C, was reached in 4 min. This condition was rnaintained hr 20 min to sllow complete decomposition of the sample. The deeomposed sample, in the cup, was diluted to 1.0 mL of d.i. water, shaken and centrifuged. The cups were than placed directed into an autosampler for Co and Fe analysis in an atomic absorption graphite fumace spectrometer.pt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.subjectMicrovawept_BR
dc.subjectDecompostionpt_BR
dc.subjectAcid vaporpt_BR
dc.subjectOpen vesselpt_BR
dc.titleAcid vapor sample decomposition in open vessel microwave.pt_BR
dc.typeResumo em anais e proceedingspt_BR
dc.date.updated2015-02-21T09:40:32Zpt_BR
dc.subject.nalthesauruscobaltpt_BR
riaa.ainfo.id44768pt_BR
riaa.ainfo.lastupdate2015-02-20pt_BR
dc.contributor.institutionANA RITA DE ARAUJO NOGUEIRA, CPPSEpt_BR
dc.contributor.institutionGEÓRGIA C. L. ARAÚJO, UFSCARpt_BR
dc.contributor.institutionJOAQUIM A. NÓBREGA, UFSCAR.pt_BR
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