Phosphorous determination in biochar-based fertilizers by spark discharge-laser-induced breakdown spectroscopy

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorIstituto per la Scienza e Tecnologia dei Plasmi (ISTP) Sede di Bari-
Autor(es): dc.creatorDib, Samia Rodrigues-
Autor(es): dc.creatorSenesi, Giorgio Saverio-
Autor(es): dc.creatorNeto, Jose Anchieta Gomes-
Autor(es): dc.creatorRibeiro, Clovis Augusto-
Autor(es): dc.creatorFerreira, Edilene Cristina-
Data de aceite: dc.date.accessioned2025-08-21T22:49:38Z-
Data de disponibilização: dc.date.available2025-08-21T22:49:38Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/chemosensors9120337-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230099-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230099-
Descrição: dc.descriptionBiochar-based fertilizers are a new attractive alternative to P supplementation for crops, as they can gradually release the nutrient, avoiding losses and improving soil quality. In this re-gard, the evaluation of the P amount in biochar-based fertilizers is extremely important for their quality control. Analytical techniques that require sample solubilization are not very efficient for this task, as biochar is difficult to solubilize. Laser-induced breakdown spectroscopy (LIBS) is a promising technique to respond to this demand, as it enables a direct analysis of solid samples, avoiding the complicated process of sample solubilization. In this work, a novel method based on spark discharge (SD) coupled to LIBS was evaluated for P determination in biochar-based fertilizers prepared from three different biomasses. To overcome calibration problems in LIBS analysis, a matrix-matching procedure accomplished by the addition of eucalyptus biochar to calibration standards was used in experiments. This procedure minimized matrix effects and allowed us to achieve a satisfactory accuracy even when applied to similar but different matrices. Furthermore, the developed method is simple, fast, direct, does not generate post-analysis residues and appears appropriate for the quality control of sustainable biochar-based fertilizers and other biochar products.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartment of Analytical Chemistry Institute of Araraquara Physical-Chemical and Inorganic Chemistry São Paulo State University (UNESP), P.O. Box 355-
Descrição: dc.descriptionCNR Istituto per la Scienza e Tecnologia dei Plasmi (ISTP) Sede di Bari, Via Amendola 122/D-
Descrição: dc.descriptionDepartment of Analytical Chemistry Institute of Araraquara Physical-Chemical and Inorganic Chemistry São Paulo State University (UNESP), P.O. Box 355-
Descrição: dc.descriptionFAPESP: 2015/24757-9-
Descrição: dc.descriptionCNPq: 308200/2018-7-
Idioma: dc.languageen-
Relação: dc.relationChemosensors-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiochar-based fertilizers-
Palavras-chave: dc.subjectMatrix matching-
Palavras-chave: dc.subjectP analysis-
Palavras-chave: dc.subjectSD-LIBS-
Título: dc.titlePhosphorous determination in biochar-based fertilizers by spark discharge-laser-induced breakdown spectroscopy-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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