Título:	Evaluation of inductively coupled plasma tandem mass spectrometry for determination of as in agricultural inputs with high REE contents.
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.
Ano de publicação:	2016
Referência:	Journal of the Brazilian Chemical Society, v. 27, n. 11, p. 2076-2081, 2016.
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.
NAL Thesaurus:	arsenic
Palavras-chave:	Double charged interference Fertilizer
Digital Object Identifier:	http://dx.doi.org/10.5935/0103-5053.20160098
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPPSE)