Data/hora: 07/06/2024 02:20:44

Provedor de dados: 	5	
País: 	France	
Título: 	Determination of ultra-low U-236/U-238 isotope ratios by tandem quadrupole ICP-MS/MS	
Autores: 	Tanimizu, Masaharu; Sugiyama, Naoki; Ponzevera, Emmanuel; Bayon, Germain.	
Data: 	2013	
Ano: 	2013	
Resumo: 	Isotope ratios of U-236/U-238 were measured at levels below 10(-7) by single collector ICPMS with a tandem quadrupole mass separation mechanism. Peak tailing of the prominent U-238(+) ion beam on the U-236(+) peak was reduced to the level of similar to 10(-10) by use of two quadrupole mass filters. The (UH+)-U-235 interference on U-236(+) was efficiently reduced to a UH+/U+ ratio of 1 x 10(-8) by an ion-molecule reaction between UH+ and O-2 in a collision/reaction cell placed between the two quadrupoles. The resultant detection limit for U-236/U-238 measurement was better than those reported by any other ICPMS study. The U-236/U-238 ratios, measured as (UO+)-U-236-O-16/(UO+)-U-238-O-16, were determined in the range 10(-9) to 10(-7) without correction for spectral interference. Accurate measurements of U-236/U-238 to as low as 1 x 10(-10) are projected.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00152/26358/24440.pdf

DOI:10.1039/c3ja50145k

http://archimer.ifremer.fr/doc/00152/26358/	
Editor: 	Royal Soc Chemistry	
Formato: 	application/pdf	
Fonte: 	Journal Of Analytical Atomic Spectrometry (0267-9477) (Royal Soc Chemistry), 2013 , Vol. 28 , N. 9 , P. 1372-1376	
Fonte: 	The Royal Society of Chemistry 2013

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