镥的激光共振电离质谱同位素分析技术  

Technique of Lutetium Isotopic Analysis by Laser Resonance Ionization Mass Spectrometry

作　　者：李志明[1] 朱凤蓉[1] 张子斌[1] 邓虎[1] 翟利华[1] 王长海[1] 任向军[1] 万可友[1] 张利兴[1] 

机构地区：[1]西北核技术研究所,西安,710024 西北核技术研究所,西安,710024 西北核技术研究所,西安,710024 西北核技术研究所,西安,710024 西北核技术研究所,西安,710024 西北核技术研究所,西安,710024 西北核技术研究所,西安,710024 西北核技术研究所,西安,710024 西北核技术研究所,西安,710024

出　　处：《质谱学报》2005年第z1期45-46,共2页Journal of Chinese Mass Spectrometry Society

摘　　要：Technique of lutetium isotopic analysis by laser resonance ionization mass spectrometry(LRIMS) was developed in the presence of isobaric interference. In the case of real sample, the elemental selectivity was better than 8×105, and the detection efficiency was 8.3×10-5. The technique of wavelength scanning method was set up in order that the accurate isotopic ratio could be determined. And the numerical computational method was provided to calculate the correct factor of isotopic ratio. Using this technique, the isotopic ratio measured by LRIMS is in good agreement with standard value measured by TIMS.

关 键 词：laser RESONANCE IONIZATION mass SPECTROMETRY (LRIMS) LUTETIUM ISOTOPE ratio 

分 类 号：O657.63[理学—分析化学]