Evaluation of micro-energy dispersive X-ray fluorescence spectrometry for the analysis of plant materials

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dc.contributor.author Bueno Guerra, Marcelo Braga
dc.contributor.author Schaefer, Carlos E. G. R.
dc.contributor.author Carvalho, Gabriel G. A. de
dc.contributor.author Souza, Paulino F. de
dc.contributor.author Santos Junior, Dario [UNIFESP]
dc.contributor.author Nunes, Lidiane C.
dc.contributor.author Krug, Francisco J.
dc.date.accessioned 2016-01-24T14:31:04Z
dc.date.available 2016-01-24T14:31:04Z
dc.date.issued 2013-01-01
dc.identifier http://dx.doi.org/10.1039/c3ja50084e
dc.identifier.citation Journal of Analytical Atomic Spectrometry. Cambridge: Royal Soc Chemistry, v. 28, n. 7, p. 1096-1101, 2013.
dc.identifier.issn 0267-9477
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/35821
dc.description.abstract An analytical procedure relying on micro-energy dispersive X-ray fluorescence spectrometry (mu-EDX) was evaluated for the quantitative determination of macro-, micronutrients and beneficial elements in pressed pellets of plant materials. for testing purposes, leaves from 23 varieties of sugar cane, previously analyzed by validated reference methods, based on wet decomposition procedures followed by ICP OES measurements were used. Linear correlations between analyte mass fractions in the tested samples and the corresponding mu-EDX intensities were obtained for P, K, Ca, S, Fe, Mn and Si with regression coefficients ranging from 0.9501 to 0.9933. Furthermore, the coefficients of variation of results in the 0.3 to 16% range (n = 3 sampling lines, 30 sampling sites per line), the spatial resolution of 50 mu m per site and the suitable detection limits for these analytes were additional features that demonstrated the performance of the proposed procedure as a useful tool for plant nutrient diagnosis. in addition, the results also indicate that mu-EDX can be recommended as a cross-validation method for analysis of plant materials, owing to its inherent non-destructive capability and, particularly, when dealing with analytes' micro-heterogeneity evaluation within the samples. en
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorship Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.format.extent 1096-1101
dc.language.iso eng
dc.publisher Royal Soc Chemistry
dc.relation.ispartof Journal of Analytical Atomic Spectrometry
dc.rights Acesso restrito
dc.title Evaluation of micro-energy dispersive X-ray fluorescence spectrometry for the analysis of plant materials en
dc.type Artigo
dc.contributor.institution Universidade de São Paulo (USP)
dc.contributor.institution Universidade Federal de Viçosa (UFV)
dc.contributor.institution Ctr Tecnol Canavieira
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.description.affiliation Univ São Paulo, Res Support Ctr, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
dc.description.affiliation Univ Fed Vicosa, Dept Solos, BR-36570000 Vicosa, MG, Brazil
dc.description.affiliation Ctr Tecnol Canavieira, BR-13400970 Piracicaba, SP, Brazil
dc.description.affiliation Universidade Federal de São Paulo, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUnifesp Universidade Federal de São Paulo, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil
dc.description.sponsorshipID FAPESP: 2010/16379-0
dc.description.sponsorshipID FAPESP: 2010/17158-8
dc.description.sponsorshipID FAPESP: 2012/16203-5
dc.description.sponsorshipID CNPq: 578728/2008-7
dc.description.sponsorshipID CNPq: 140926/2009-7
dc.description.sponsorshipID CNPq: 305913/2009-3
dc.description.sponsorshipID CNPq: 309800/2011-0
dc.description.sponsorshipID CNPq: 482500/2011-5
dc.description.sponsorshipID CNPq: 382189/2012-4
dc.description.sponsorshipID FAPEMIG: 12070/2009
dc.identifier.doi 10.1039/c3ja50084e
dc.description.source Web of Science
dc.identifier.wos WOS:000320270000016



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