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Day 3, June 12（Wed.） 15:27-15:45 Room D (Conference Room 202)
- 3D-O2-1527
Soft Ionization of Volatile Organic Compounds Using ICP Mass Spectrometry
(1Univ. Tokyo, 2PKJ, 3BioChromato)
oTakafumi Hirata1, Kyoko Kobayashi2, Xinya Zhao1, Hui Hsin Khoo3, Yuta Kemuyama1, Osamu Shikino2
Mass spectrometry utilizing an ICP as an ion source (ICP-MS) now becomes one of the most principal choice for sensitive elemental analysis. Because of both the high excitation and kinetic temperatures (i.e., hard ionization), ICP-MS is less susceptible to the matrix effect, and thus, the technique is widely used for the quantitative analysis of trace elements. However, with the conventional ICP-MS, molecules would be completely decomposed in the ICP, and therefore, detection of molecules (organic compounds) in their original form cannot be achieved. To overcome this, ionization through an ion reaction with the ICP-induced primary ions was adopted in this study. Magnitude of softness of the ionization can be adjusted by selecting the primary ions produced by the ICP. With the technique developed here, analytical capability of the ICP-MS can be further expanded to the detection of volatile organic compounds (VOCs).