Data/hora: 18/06/2024 03:27:01

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 04/09/2017
Data da última atualização: | 05/01/2018
Autoria: | MACHADO, R. C.; AMARAL, C. D. B. do; SCHIAVO, D.; NOBREGA, J. de A.; NOGUEIRA, A. R. de A.
Afiliação: | Raquel Cardoso Machado, UFSCar; Clarice Dias Britto do Amaral, UFSCar; Daniela Schiavo, Agilent Technologies; Joaquim de Araújo Nobrega, UFSCar; ANA RITA DE ARAUJO NOGUEIRA, CPPSE.
Título: | Complex samples and spectral interferences in ICP-MS: evaluation of tandem mass spectrometry for interference-free determination of cadmium, tin and platinum group elements.
Ano de publicação: | 2017
Fonte/Imprenta: | Microchemical Journal, v. 130, p. 271-275, 2017.
DOI: | https://doi.org/10.1016/j.microc.2016.09.011
Idioma: | Inglês
Conteúdo: | An analytical method was developed for determination of Cd, Sn, Pd, Pt and Rh in sediments, fertilizer and sludge samples by inductively coupled plasma tandem mass spectrometry (ICP-MS/MS). The performance of ICP-MS/MS using oxygen into the octopole reaction system (ORS3) and MS/MS mode, on mass and shift mass, was evaluated to overcome spectral interferences. Addition and recovery experiments in sediments, fertilizer and sludge samples at three concentration levels, 0.5, 1.0 and 5.0 &#956;g L&#8722; 1, were carried out to evaluate the accuracy of the developed procedure. Quantitative recoveries, from 80 to 113% for 112Cd+, 120Sn+ and 106Pd+ were reached using MS/MS in on mass operation mode. For Pt and Rh, recoveries ranged from 81 to 117% by monitoring 195Pt16O+ and 103Rh16O+ in MS/MS (shift mass mode) with 0.3 mL min&#8722; 1 oxygen gas flow rate pressurized into the ORS3. Limits of detection of the developed method were 15, 2.5, 1.8, 9.0 and 9.9 &#956;g kg&#8722; 1 for 195Pt16O+, 103Rh16O+, 112Cd+, 120Sn+, and 106Pd+, respectively. All analytes were simultaneously interference-free determined by ICP-MS/MS, which demonstrates the potential of this instrumental analytical strategy for Cd, Sn, Pd, Pt, and Rh determination in complex samples.
Palavras-Chave: | Mass shift mode; Spectral interferences.
Thesaurus Nal: | tandem mass spectrometry.
Categoria do assunto: | W Química e Física
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (24098-1) - UPC - AP - DD - PROCI-2017.00038 - MAC - 2017.00166 - DIS