Ultra low-level measurements of actinides by sector field ICP-MS.
作者： F Pointurier , N Baglan , P Hemet , None
DOI: 10.1016/J.APRADISO.2003.11.083
关键词: Actinide 、 Field (physics) 、 Isotope 、 Detection limit 、 Radiochemistry 、 Isotopic ratio 、 Analytical chemistry 、 Spectrometer 、 Ultra trace 、 Inductively coupled plasma mass spectrometry 、 Chemistry
摘要: Abstract In the present work, a double-focusing sector field inductively coupled plasma-mass spectrometer was optimised for ultra trace and isotopic analyses of actinide long-lived isotopes in low concentration solutions fg ml −1 to ng ml range. Sensitivities about 3 GHz/(μg ml ), with as background 0.1 cps, were obtained U using conventional concentric pneumatic nebuliser. Detection limits are below fg range 239 Pu 240 Pu. With natural U, precision lower than 0.5% RSD is currently 235 U/ 238 ratio at 200 pg ml level.
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