Data/hora: 15/06/2024 01:13:43

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