Evaluation of inductively coupled plasma tandem mass spectrometry for determination of as in agricultural inputs with high REE contents.

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.

Bibliographic Details

Main Authors:	MACHADO, R. C., VIRGILIO, A., AMARAL, C. D. B. do, SCHIAVO, D., NOBREGA, J. de A., NOGUEIRA, A. R. de A.
Other Authors:	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.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2017-02-23
Subjects:	Double charged interference, Fertilizer, arsenic,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1065470 http://dx.doi.org/10.5935/0103-5053.20160098
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