Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.microc.2017.07.005 http://hdl.handle.net/11449/179022 |
Resumo: | Biochar has gained agricultural importance as a soil amendment because of its important agricultural properties such as water retention, plant nutrient supplier, promoter of microorganism growth, sequestration action of atmospheric CO2, etc. Further, it is a low cost material being produced by recycling. Due to its active sites, biochar can adsorb nutrients so acting as a soil fertilizer. Thus the rapid assessment of nutrients in these materials is essential to ensure quality control for agricultural purposes. This work aimed to develop a simple analytical method based on Laser-Induced Breakdown Spectroscopy (LIBS) to determine Ca in biochar-based fertilizers. In particular, biochar samples enriched with Ca were prepared from peanut shells, residues of eucalyptus and banana fibers. The calibration standards were prepared by matrix matching using a biochar from eucalyptus residues. Different spectral preprocessing were evaluated to enhance the precision and accuracy of the method. However, the matrix effects demanded the use of internal standardization as the appropriate methodology to obtain the best accuracy. A linear correlation coefficient of 0.989 and a linear work range of 1.51–11.23% Ca were obtained using the proposed method, which yielded limits of detection and quantification of 0.45% e 1.51%, respectively. Calcium contents determined by LIBS in biochar-based fertilizers were in good agreement (paired t-test at 95% confidence level) with those determined by using High-Resolution Continuous Source Atomic Absorption Spectrometry (HR-CS FAAS) as the reference technique. Thus, the importance of internal standardization was demonstrated to be successful for the quantitative analysis of Ca in complex matrices like biochar-based fertilizers. |
id |
UNSP_3e7a478cbef023d34736024444658841 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/179022 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standardBiochar-based fertilizersCalciumInternal standardizationLibsBiochar has gained agricultural importance as a soil amendment because of its important agricultural properties such as water retention, plant nutrient supplier, promoter of microorganism growth, sequestration action of atmospheric CO2, etc. Further, it is a low cost material being produced by recycling. Due to its active sites, biochar can adsorb nutrients so acting as a soil fertilizer. Thus the rapid assessment of nutrients in these materials is essential to ensure quality control for agricultural purposes. This work aimed to develop a simple analytical method based on Laser-Induced Breakdown Spectroscopy (LIBS) to determine Ca in biochar-based fertilizers. In particular, biochar samples enriched with Ca were prepared from peanut shells, residues of eucalyptus and banana fibers. The calibration standards were prepared by matrix matching using a biochar from eucalyptus residues. Different spectral preprocessing were evaluated to enhance the precision and accuracy of the method. However, the matrix effects demanded the use of internal standardization as the appropriate methodology to obtain the best accuracy. A linear correlation coefficient of 0.989 and a linear work range of 1.51–11.23% Ca were obtained using the proposed method, which yielded limits of detection and quantification of 0.45% e 1.51%, respectively. Calcium contents determined by LIBS in biochar-based fertilizers were in good agreement (paired t-test at 95% confidence level) with those determined by using High-Resolution Continuous Source Atomic Absorption Spectrometry (HR-CS FAAS) as the reference technique. Thus, the importance of internal standardization was demonstrated to be successful for the quantitative analysis of Ca in complex matrices like biochar-based fertilizers.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Paulo State University - UNESP Analytical Chemistry Department, P.O. Box 355Federal University of São Paulo UNIFESP Chemistry Department, Rua São Nicolau, n° 210 - Centro - CEPCNR NANOTEC - PlasMI Lab, Via Amendola 122/DSão Paulo State University - UNESP Analytical Chemistry Department, P.O. Box 355FAPESP: 2015/24757-9Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)NANOTEC - PlasMI LabMorais, Carla Pereira de [UNESP]Barros, Ariane Isis [UNESP]Santos Júnior, DárioRibeiro, Clóvis Augusto [UNESP]Crespi, Marisa Spirandeli [UNESP]Senesi, Giorgio SaverioGomes Neto, José Anchieta [UNESP]Ferreira, Edilene Cristina [UNESP]2018-12-11T17:33:12Z2018-12-11T17:33:12Z2017-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article370-373application/pdfhttp://dx.doi.org/10.1016/j.microc.2017.07.005Microchemical Journal, v. 134, p. 370-373.0026-265Xhttp://hdl.handle.net/11449/17902210.1016/j.microc.2017.07.0052-s2.0-850231960512-s2.0-85023196051.pdf747131011399914084983108918100820000-0002-7984-5908Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMicrochemical Journalinfo:eu-repo/semantics/openAccess2023-10-11T06:05:57Zoai:repositorio.unesp.br:11449/179022Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:36:48.824456Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard |
title |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard |
spellingShingle |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard Morais, Carla Pereira de [UNESP] Biochar-based fertilizers Calcium Internal standardization Libs |
title_short |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard |
title_full |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard |
title_fullStr |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard |
title_full_unstemmed |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard |
title_sort |
Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard |
author |
Morais, Carla Pereira de [UNESP] |
author_facet |
Morais, Carla Pereira de [UNESP] Barros, Ariane Isis [UNESP] Santos Júnior, Dário Ribeiro, Clóvis Augusto [UNESP] Crespi, Marisa Spirandeli [UNESP] Senesi, Giorgio Saverio Gomes Neto, José Anchieta [UNESP] Ferreira, Edilene Cristina [UNESP] |
author_role |
author |
author2 |
Barros, Ariane Isis [UNESP] Santos Júnior, Dário Ribeiro, Clóvis Augusto [UNESP] Crespi, Marisa Spirandeli [UNESP] Senesi, Giorgio Saverio Gomes Neto, José Anchieta [UNESP] Ferreira, Edilene Cristina [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) NANOTEC - PlasMI Lab |
dc.contributor.author.fl_str_mv |
Morais, Carla Pereira de [UNESP] Barros, Ariane Isis [UNESP] Santos Júnior, Dário Ribeiro, Clóvis Augusto [UNESP] Crespi, Marisa Spirandeli [UNESP] Senesi, Giorgio Saverio Gomes Neto, José Anchieta [UNESP] Ferreira, Edilene Cristina [UNESP] |
dc.subject.por.fl_str_mv |
Biochar-based fertilizers Calcium Internal standardization Libs |
topic |
Biochar-based fertilizers Calcium Internal standardization Libs |
description |
Biochar has gained agricultural importance as a soil amendment because of its important agricultural properties such as water retention, plant nutrient supplier, promoter of microorganism growth, sequestration action of atmospheric CO2, etc. Further, it is a low cost material being produced by recycling. Due to its active sites, biochar can adsorb nutrients so acting as a soil fertilizer. Thus the rapid assessment of nutrients in these materials is essential to ensure quality control for agricultural purposes. This work aimed to develop a simple analytical method based on Laser-Induced Breakdown Spectroscopy (LIBS) to determine Ca in biochar-based fertilizers. In particular, biochar samples enriched with Ca were prepared from peanut shells, residues of eucalyptus and banana fibers. The calibration standards were prepared by matrix matching using a biochar from eucalyptus residues. Different spectral preprocessing were evaluated to enhance the precision and accuracy of the method. However, the matrix effects demanded the use of internal standardization as the appropriate methodology to obtain the best accuracy. A linear correlation coefficient of 0.989 and a linear work range of 1.51–11.23% Ca were obtained using the proposed method, which yielded limits of detection and quantification of 0.45% e 1.51%, respectively. Calcium contents determined by LIBS in biochar-based fertilizers were in good agreement (paired t-test at 95% confidence level) with those determined by using High-Resolution Continuous Source Atomic Absorption Spectrometry (HR-CS FAAS) as the reference technique. Thus, the importance of internal standardization was demonstrated to be successful for the quantitative analysis of Ca in complex matrices like biochar-based fertilizers. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-01 2018-12-11T17:33:12Z 2018-12-11T17:33:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.microc.2017.07.005 Microchemical Journal, v. 134, p. 370-373. 0026-265X http://hdl.handle.net/11449/179022 10.1016/j.microc.2017.07.005 2-s2.0-85023196051 2-s2.0-85023196051.pdf 7471310113999140 8498310891810082 0000-0002-7984-5908 |
url |
http://dx.doi.org/10.1016/j.microc.2017.07.005 http://hdl.handle.net/11449/179022 |
identifier_str_mv |
Microchemical Journal, v. 134, p. 370-373. 0026-265X 10.1016/j.microc.2017.07.005 2-s2.0-85023196051 2-s2.0-85023196051.pdf 7471310113999140 8498310891810082 0000-0002-7984-5908 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Microchemical Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
370-373 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128387959488512 |