Campo DC | Valor | Idioma |
dc.contributor.author | Ferreira, Sergio Luis Costa | - |
dc.contributor.author | Macedo, Samuel Marques | - |
dc.contributor.author | Santos, Debora C. dos | - |
dc.contributor.author | Jesus, Raildo M. de | - |
dc.contributor.author | Santos, Walter Nei Lopes dos | - |
dc.creator | Ferreira, Sergio Luis Costa | - |
dc.creator | Macedo, Samuel Marques | - |
dc.creator | Santos, Debora C. dos | - |
dc.creator | Jesus, Raildo M. de | - |
dc.creator | Santos, Walter Nei Lopes dos | - |
dc.date.accessioned | 2012-11-14T22:44:40Z | - |
dc.date.available | 2012-11-14T22:44:40Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 0267-9477 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/7222 | - |
dc.description | p. 1887-1891 | pt_BR |
dc.description.abstract | The present paper proposes an analytical procedure for speciation analysis of inorganic antimony in
airborne particulate matter using slurry sampling and hydride generation atomic absorption
spectrometry (HG QT AAS). During the antimony determination, a quartz T tube cell was heated to
approximately 900 C using air–acetylene flame. The optimization step was performed by employing
full two-level factorial and Box–Behnken designs involving the following factors: flow rate and
concentration of sodium tetrahydroborate and hydrochloric acid concentration, having as
chemometric response absorbance. Using the optimized conditions, the method employing slurry
sampling allows for the determination of total Sb and Sb(III) with limits of quantification of 0.3 and 0.2
mg L 1, respectively. The precision, expressed as a relative standard deviation (%RSD), was always
lower than 6.2%. The accuracy was confirmed by analysis of a certified reference material of
atmospheric particulate matter urban dust furnished by National Institute of Standards & Technology.
This method was used to determine total antimony and antimony(III) in four particulate matter samples
collected in Bananeira Village, Bahia State, Brazil. In these samples, total antimony concentrations
varied from 4.32 to 4.60 ng m 3, and Sb(III) concentrations varied from 0.33 to 0.67 ng m 3. | pt_BR |
dc.description.sponsorship | FAPESB; CNPq; CAPES | pt_BR |
dc.language.iso | en_US | pt_BR |
dc.source | http://pubs.rsc.org/en/content/articlepdf/2011/JA/C1JA10108K | pt_BR |
dc.title | Speciation analysis of inorganic antimony in airborne particulate matter employing slurry sampling and HG QT AAS | pt_BR |
dc.title.alternative | Journal of Analytical Atomic Spectrometry | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | 26 | pt_BR |
Aparece nas coleções: | Artigo Publicado em Periódico (POSPETRO)
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