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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
07/10/2021 |
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Data da última atualização: |
07/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
POLIDORO, J. C.; MEDEIROS, A. F. A.; XAVIER, R. P.; MEDEIROS, J. A.; BODDEY, R. M.; ALVES, B. J. R.; URQUIAGA, S. |
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Afiliação: |
JOSE CARLOS POLIDORO, CNPS; ANDRÉ FERNANDO ALVES MEDEIROS; ROGÉRIO PONTES XAVIER; JOÃO ALFREDO MEDEIROS, UFRJ; ROBERT MICHAEL BODDEY, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB; SEGUNDO SACRAMENTO U CABALLERO, CNPAB. |
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Título: |
Evaluation of techniques for determination of molybdenum in sugarcane leaves. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 37, n. 1-2, p. 77-91, 2006. |
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DOI: |
https://doi.org/10.1080/00103620500408753 |
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Idioma: |
Inglês |
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Conteúdo: |
In crops of the sugarcane, the concentrations of molybdenum (Mo) in the leaves are generally lower than 0.3 mg Mo kg(-1). These low concentrations have resulted in limitations in the methods and instruments that can be used for these analyses. The objective of this study was to evaluate three different techniques to determine the concentration of Mo in sugarcane leaves sampled in the principal sugarcane-producing areas in Brazil. Two spectrometric techniques were evaluated by using ICP-EAS (Inductively Coupled Plasma-Emission Automated System) and DCP-MEAS (Direct Coupled Plasma-Multiple Emission Automated System) and a colorimetric technique of the reaction between potassium iodide and hydrogen peroxide (KI-H2O2). The techniques ICP-EAS and KI-H2O2 produced results of satisfactory accuracy and precision, whereas the DCP-MEAS consistently overestimated the Mo concentrations in cane leaves. The KI-H2O2 technique showed sensitivity 5 times greater than the ICP-EAS, with minimum detection limits of 0.1 and 0.5 mg Mo kg(-1), respectively. |
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Palavras-Chave: |
Cana-de-açúcar; Mo. |
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Thesagro: |
Molibdênio. |
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Thesaurus Nal: |
Colorimetry; Molybdenum; Sugarcane. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01869naa a2200277 a 4500
001 2135145
005 2021-10-07
008 2006 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/00103620500408753$2DOI
100 1 $aPOLIDORO, J. C.
245 $aEvaluation of techniques for determination of molybdenum in sugarcane leaves.$h[electronic resource]
260 $c2006
520 $aIn crops of the sugarcane, the concentrations of molybdenum (Mo) in the leaves are generally lower than 0.3 mg Mo kg(-1). These low concentrations have resulted in limitations in the methods and instruments that can be used for these analyses. The objective of this study was to evaluate three different techniques to determine the concentration of Mo in sugarcane leaves sampled in the principal sugarcane-producing areas in Brazil. Two spectrometric techniques were evaluated by using ICP-EAS (Inductively Coupled Plasma-Emission Automated System) and DCP-MEAS (Direct Coupled Plasma-Multiple Emission Automated System) and a colorimetric technique of the reaction between potassium iodide and hydrogen peroxide (KI-H2O2). The techniques ICP-EAS and KI-H2O2 produced results of satisfactory accuracy and precision, whereas the DCP-MEAS consistently overestimated the Mo concentrations in cane leaves. The KI-H2O2 technique showed sensitivity 5 times greater than the ICP-EAS, with minimum detection limits of 0.1 and 0.5 mg Mo kg(-1), respectively.
650 $aColorimetry
650 $aMolybdenum
650 $aSugarcane
650 $aMolibdênio
653 $aCana-de-açúcar
653 $aMo
700 1 $aMEDEIROS, A. F. A.
700 1 $aXAVIER, R. P.
700 1 $aMEDEIROS, J. A.
700 1 $aBODDEY, R. M.
700 1 $aALVES, B. J. R.
700 1 $aURQUIAGA, S.
773 $tCommunications in Soil Science and Plant Analysis$gv. 37, n. 1-2, p. 77-91, 2006.
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Registro original: |
Embrapa Solos (CNPS) |
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