The resonance laser ablation Fourier-transform ion cyclotron resonance mass spectrometry (RLA-FTICRMS) a new coupling for material science

被引:20
作者
Aubriet, F [1 ]
Vernex-Loset, L [1 ]
Maunit, B [1 ]
Krier, G [1 ]
Muller, JF [1 ]
机构
[1] Univ Metz, IPEM, Lab Spectrometrie Masse & Chim Laser, F-57078 Metz 03, France
关键词
resonant laser ablation; trace analysis; mass spectrometry; ionization; chromium;
D O I
10.1016/S1387-3806(02)00750-9
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
The development of a new device, which associated resonant ionization and Fourier-transform ion cyclotron resonance mass spectrometry by coupling a tunable laser with the laser microprobe Fourier-transform ion cyclotron resonance mass spectrometry (FTICRMS) developed at the University of Metz, allowed us to carry out the first resonance laser ablation Fourier-transform ion cyclotron resonance mass spectrometry (RLA-FTICRMS) experiments. RLA-FTICRM ensures, due to the involved processes, an increase in the selectivity and sensitivity of the ionization and a high mass resolution by the use of a FTICR mass spectrometer. These potentialities lead us to consider this new technique as a tool of choice for the analysis of inorganic traces by resonant laser ablation/ionization mass spectrometry (RLA-MS). The first experiments reported in this study ensures a 2-7 benefit in selectivity, according to the studied matrix and a limit of detection lower than 1 ppm for chromium. Finally, the influence of the power density on the involved processes was highlighted and allowed us to determine that the resonant processes are most effective for power density lower than 5 x 10(8) W/cm(2).
引用
收藏
页码:717 / 727
页数:11
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