A simple method for the multi-elemental analysis of organic fertilizer by slurry sampling and total reflection x-ray fluorescence

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dc.creatorLuciene Vertello de Resende
dc.creatorClésia Cristina Nascentes
dc.date.accessioned2025-03-07T13:19:23Z
dc.date.accessioned2025-09-09T01:03:02Z
dc.date.available2025-03-07T13:19:23Z
dc.date.issued2016
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1016/j.talanta.2015.10.007
dc.identifier.issn1873-3573
dc.identifier.urihttps://hdl.handle.net/1843/80554
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofTalanta
dc.rightsAcesso Aberto
dc.subjectResíduos orgânicos como fertilizantes
dc.subjectBiodiesel
dc.subjectNutrientes inorgânicos
dc.subjectBiomassa vegetal
dc.subjectPreparação de amostra (Química)
dc.subjectEspectroscopia de raio X
dc.subject.otherTotal reflection X-ray fluorescence TXRF
dc.subject.otherSlurry sampling
dc.subject.otherBiodiesel press cakes
dc.subject.otherOrganic fertilizer
dc.titleA simple method for the multi-elemental analysis of organic fertilizer by slurry sampling and total reflection x-ray fluorescence
dc.typeArtigo de periódico
local.citation.epage492
local.citation.spage485
local.citation.volume147
local.description.resumoA simple and fast method for the multi-elemental determination of 18 inorganic constituents (P, S, Cl, K, Ca, Ti, Cr, V, Mn, Fe, Ni, Cu, Zn, Br, Rb, Sr, Ba and Pb) in organic fertilizers employing slurry sampling and total reflection X-ray fluorescence (TXRF) is presented. A 23 factorial design with a central point was employed to optimize the slurry sampling procedure. The internal standard and instrumental conditions were optimized by univariate studies. The selectivity of the method to determining Se, As, Pb, Cr, Ni and Cd was assessed. The accuracy was evaluated by the analysis of four standard reference materials (SRM). The recoveries varied from 72% to 114%. For most of the elements, good agreement was achieved between the certified value and the value measured in the SRM. The relative standard deviation (RSD %) ranged from 0.5% to 14%. The evaluated method was applied to the determination of analytes in the press cake of palm, castor, curcas, sunflower, fodder turnip, white lupin, rapeseed and pequi, and their potential to be used as organic fertilizer was evaluated in accordance with Brazilian legislation.
local.identifier.orcidhttps://orcid.org/0000-0002-8514-442X
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S003991401530374X?via%3Dihub

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