Analytical Sciences

Abstract − Analytical Sciences, 34(6), 743 (2018).

Evaluation of Relative Sensitivity Factors for Elemental Analysis of Aluminum and Magnesium Using Glow Discharge Mass Spectrometry with a Fast-Flow Grimm-type Ion Source
Kentaro YAMADA* and Michihisa UEMOTO**
* Jonan Branch, Tokyo Metropolitan Industrial Technology Research Institute, 1-20-20 Minami-kamata, Ota, Tokyo 144-0035, Japan
**School of Science and Engineering, Meisei University, 2-1-1 Hodokubo, Hino, Tokyo 191-8506, Japan
Relative sensitivity factors on glow discharge mass spectrometry were evaluated for unalloyed and alloyed metals of aluminum and magnesium using a glow discharge mass spectrometer operated with fast flow Grimm-type source. All the elements measured could be classified into two groups, i.e. a group of elements could be determined with repeatability equal to or less than 15% relative standard deviation, while another group could be determined with RSDs of greater than 15%. The latter is mainly due to the instability of discharge condition and elemental segregation onto certified reference materials.