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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Evaluation of inductively coupled plasma tandem mass spectrometry for determination of as in agricultural inputs with high REE contents.
Autores:  MACHADO, R. C.
VIRGILIO, A.
AMARAL, C. D. B. do
SCHIAVO, D.
NOBREGA, J. de A.
NOGUEIRA, A. R. de A.
Data:  2017-02-23
Ano:  2016
Palavras-chave:  Double charged interference
Fertilizer
Arsenic
Resumo:  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 ORS3 . Limits of detection for As+ in single quadrupole and AsO+ in MS/MS mass shift mode were 6 and 9 ng L-1, respectively.

bitstream/item/156608/1/0103-5053-jbchs-27-11-2076.pdf
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  23984

http://www.alice.cnptia.embrapa.br/alice/handle/doc/1065470

http://dx.doi.org/10.5935/0103-5053.20160098
Editor:  Journal of the Brazilian Chemical Society, v. 27, n. 11, p. 2076-2081, 2016.
Relação:  Embrapa Pecuária Sudeste - Artigo em periódico indexado (ALICE)
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