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|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-168 |
| Subject |
Development of IR desorption/VUV photoionization mass spectrometer for non-volatile molecule |
| Authors |
Sung Man Park, Jaehwan Choi, Hyuk Kang1, Hong Lae Kim, Chan Ho Kwon*
Department of Chemistry, Kangwon National University, Korea
1Department of Chemistry, Ajou University, Korea
|
| Abstract |
For non-volatile molecule, because thermal vaporization of non-volatile molecules leads to various fragmentation, the matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) has been utilized to solve such problem. In general, the MALDI is useful technique for analysis of biomolecule or peptides, but it is suffered for the analysis of low weight molecule due to the chemical interference from matrix. Due to these drawback, we invented new mass spectrometer based on IR laser desorption and VUV laser ionization technique for studying non-volatile molecules and performed the two steps of laser desorption and laser ionization using carbon powder. As a result, we detected no chemical interference in low molecular weight and observed only parent ion without any fragmentation. Remarkably, we could measure the indole-3-carbinol in a few picomole scale, where the mass resolving power was ~3600. |
| E-mail |
skydarknight@naver.com |
|
121st General Meeting of the KCS