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Study on elemental analysis of metal and ceramic samples by using laser ablation ion trap mass spectrometry(LAITMS)  

Song, Kyuseok (Korea Atomic Energy Research Institute)
Park, Hyunkook (Optron-tec)
Cha, Hyungki (Korea Atomic Energy Research Institute)
Lee, Sang Chun (Department of Chemistry, Kyungnam University)
Publication Information
Analytical Science and Technology / v.15, no.1, 2002 , pp. 7-14 More about this Journal
Abstract
Laser ablation ion trap mass spectrometry (LAITMS) was developed for the analysis of metal and ceramic samples. For this study, XeCl excimer laser (308 nm) was used for ablating the samples and ITMS was used as a detector. Samples were introduced from outside of a ring electrode and this way of sample introduction was very effective for solid samples when laser ablation was employed. Helium gas was used as a buffer gas, and its effect on sensitivity and some parameters (buffer gas pressure, ion storage time, and cut-off RF voltage) were studied. The optimized conditions were $1{\times}10^{-4}$ Torr of buffer gas pressure, 100 ms of ion storage time and $1150V_{p-p}$ of cut-off RF voltage. From that results, copper (Cu) and molybdenum (Mo) metals were tested with LAITMS and the mass spectra of these pure metals were compared with the natural abundance of isotope ratio. We also examined ceramic samples ($Al_2O_3$, $ZrO_2$) and represented the result of elemental analysis.
Keywords
ion trap mass spectrometry; metal; alumina; zirconia; ion introduction;
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