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.
Main Authors: | MACHADO, R. C., VIRGILIO, A., AMARAL, C. D. B. do, SCHIAVO, D., NOBREGA, J. de A., NOGUEIRA, A. R. de A. |
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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
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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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