Closed-Vessel Conductively Heated Digestion System for the Elemental Analysis of Agricultural Materials by High-Resolution Continuum Source Flame Atomic Absorption Spectrometry (HR-CS FAAS)

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dc.contributor.authorTraversa, Leonardo Clemente [UNESP]
dc.contributor.authorSantiago, João Victor Biagi [UNESP]
dc.contributor.authorde Oliveira, Evilim Martinez [UNESP]
dc.contributor.authorFerreira, Edilene Cristina [UNESP]
dc.contributor.authorVirgilio, Alex
dc.contributor.authorGomes Neto, José Anchieta [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2023-07-29T16:05:14Z
dc.date.available2023-07-29T16:05:14Z
dc.date.issued2023-01-01
dc.description.abstractNovel applications of the closed-vessel conductively heated digestion system (CHDS) are proposed to digest biomass, biochar, oyster shell flour, bone meal and swine manure for the determination of Ca, K, Mg, Na, Cu, Fe, Mn, and Zn by high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS). The performance of the digestion method using 14 and 7 mol L−1 HNO3 was checked by analyzing soil, rock, and plant certified reference materials (CRMs). For comparative purposes, all samples were analyzed after microwave-assisted digestion (MW-AD). Results obtained for most analytes by the closed-vessel conductively heated digestion system (CHDS) were in agreement with certified values and those attained by the comparative digestion method. The use of 7 mol L−1 HNO3 furnished lower blanks for most analytes and was effective to prepare challenging samples as biomass, biochar, shell and bone meal, swine manure, plants, soil, phosphate rock, and may be a good alternative for elemental determinations using most analytical techniques that rely on solution-based sample introduction systems. The detection limits (dry basis, mg kg−1) for Ca, Cu, Fe, K, Mg, Mn, Na, and Zn were 3, 0.4, 4, 4, 0.7, 0.4, 3, and 2, respectively. The mean relative standard deviations were close to 4.9% for closed-vessel conductively heated digestion (CHDS) and 5.9% for microwave-assisted digestion (MW-AD).en
dc.description.affiliationAnalytical Inorganic and Physical-Chemistry Department São Paulo State University–UNESP, São Paulo
dc.description.affiliationDVTEC Scientific Division Center for Nuclear Energy in Agriculture (CENA) University of São Paulo–USP, São Paulo
dc.description.affiliationUnespAnalytical Inorganic and Physical-Chemistry Department São Paulo State University–UNESP, São Paulo
dc.identifierhttp://dx.doi.org/10.1080/00032719.2023.2174133
dc.identifier.citationAnalytical Letters.
dc.identifier.doi10.1080/00032719.2023.2174133
dc.identifier.issn1532-236X
dc.identifier.issn0003-2719
dc.identifier.scopus2-s2.0-85147658135
dc.identifier.urihttp://hdl.handle.net/11449/249639
dc.language.isoeng
dc.relation.ispartofAnalytical Letters
dc.sourceScopus
dc.subjectAgriculture materials
dc.subjectclosed-vessel conductively heated digestion system (CHDS)
dc.subjecthigh-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS)
dc.titleClosed-Vessel Conductively Heated Digestion System for the Elemental Analysis of Agricultural Materials by High-Resolution Continuum Source Flame Atomic Absorption Spectrometry (HR-CS FAAS)en
dc.typeArtigo
unesp.author.orcid0000-0002-6452-5792[1]
unesp.author.orcid0000-0003-2839-1739[2]
unesp.author.orcid0000-0003-3463-8603[3]
unesp.author.orcid0000-0001-9038-2951[4]
unesp.author.orcid0000-0002-7263-5094[5]
unesp.author.orcid0000-0002-8388-9866[6]

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