Data/hora: 22/06/2024 00:40:37

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 23/02/2017
Data da última atualização: | 27/03/2019
Autoria: | MACHADO, R. C.; VIRGILIO, A.; AMARAL, C. D. B. do; SCHIAVO, D.; NOBREGA, J. de A.; NOGUEIRA, A. R. de A.
Afiliação: | Raquel Cardoso Machado, UFSCar; Alex Virgilio, UFSCar; Clarice Dias Britto do Amaral, UFSCar; Daniela Schiavo, Agilent Technologies; Joaquim de Araújo Nobrega, UFSCar; ANA RITA DE ARAUJO NOGUEIRA, CPPSE.
Título: | Evaluation of inductively coupled plasma tandem mass spectrometry for determination of as in agricultural inputs with high REE contents.
Ano de publicação: | 2016
Fonte/Imprenta: | Journal of the Brazilian Chemical Society, v. 27, n. 11, p. 2076-2081, 2016.
DOI: | http://dx.doi.org/10.5935/0103-5053.20160098
Idioma: | Inglês
Conteúdo: | 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.
Palavras-Chave: | Double charged interference; Fertilizer.
Thesaurus Nal: | arsenic.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/156608/1/0103-5053-jbchs-27-11-2076.pdf
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (23984-1) - UPC - AP - DD - PROCI-2016.00210 - MAC - 2017.00066 - DIS