Data/hora: 22/09/2024 21:40:37

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