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Registros recuperados: 5
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Complex samples and spectral interferences in ICP-MS: evaluation of tandem mass spectrometry for interference-free determination of cadmium, tin and platinum group elements. Repositório Alice
MACHADO, R. C.; AMARAL, C. D. B. do; SCHIAVO, D.; NOBREGA, J. de A.; NOGUEIRA, A. R. de A..
An analytical method was developed for determination of Cd, Sn, Pd, Pt and Rh in sediments, fertilizer and sludge samples by inductively coupled plasma tandem mass spectrometry (ICP-MS/MS). The performance of ICP-MS/MS using oxygen into the octopole reaction system (ORS3) and MS/MS mode, on mass and shift mass, was evaluated to overcome spectral interferences. Addition and recovery experiments in sediments, fertilizer and sludge samples at three concentration levels, 0.5, 1.0 and 5.0 μg L− 1, were carried out to evaluate the accuracy of the developed procedure. Quantitative recoveries, from 80 to 113% for 112Cd+, 120Sn+ and 106Pd+ were reached using MS/MS in on mass operation mode. For Pt and Rh, recoveries ranged from 81 to 117% by...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Spectral interferences; Tandem mass spectrometry; Mass shift mode.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1074928
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Determination of macro and micronutrients in plants using the Agilent 4200 MP AES. Infoteca-e
LIBERATO, C. G.; BARROS, J. A. V. de A.; VIRGILIO, A.; MACHADO, R. C.; NOGUEIRA, A. R. de A.; NOBREGA, J. de A.; SCHIAVO, D..
The determination of macro and micronutrients in plant tissues is an important measure used to analyze plant nutritional status and to evaluate the possible need for fertilizer supplementation.
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Fertilizer supplementation; Nutrients; Technology.
Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1079521
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Determination of rare earth elements in geological samples using the agilent SVDV ICP-OES. Repositório Alice
AMARAL, C. D. B. do; MACHADO, R. C.; BARROS, J. A. V. de A.; VIRGILIO, A.; SCHIAVO, D.; NOGUEIRA, A. R. de A.; NOBREGA, J. de A..
2016
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Geochemistry; Mineral.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1051472
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Determination of REE in phosphate-containing fertilizers and agricultural gypsum by Synchronous Vertical Dual View ICP OES Repositório Alice
MACHADO, R. C.; AMARAL, C. D. B. do; SCHIAVO, D.; NOBREGA, J. de A.; NOGUEIRA, A. R. de A..
2015
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: REE; Agricultural gypsum; ICP OES.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1037844
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Evaluation of inductively coupled plasma tandem mass spectrometry for determination of as in agricultural inputs with high REE contents. Repositório Alice
MACHADO, R. C.; VIRGILIO, A.; AMARAL, C. D. B. do; SCHIAVO, D.; NOBREGA, J. de A.; NOGUEIRA, A. R. de A..
In the present work, an inductively coupled plasma-tandem mass spectrometer (ICP-MS/MS) operating in single quadrupole and mass shift modes were evaluated for As determination in mineral fertilizers and agricultural gypsum with high contents of rare earth elements. For MS/MS mode, oxygen was the gas introduced into the octopole reaction system (ORS3 ). Samples were prepared by microwave-assisted digestion with diluted nitric acid solution. The accuracy was checked by analysis of a fertilizer certified reference material (NIST SRM 695) and by addition and recovery experiments. When operating in single quadrupole mode, recoveries ranged from 59 to 151%; while values obtained by MS/MS mode varied from 81 to 105% when 0.30 mL min-1 O2 was introduced into the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Double charged interference; Fertilizer; Arsenic.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1065470
Registros recuperados: 5
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