| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Outline of Final Research Achievements |
Nobel Prize in Chemistry in 2012 indicates that the development of the ionization method in the mass spectrometry is very important. Under the investigation for high-energy electron transfer dissociation using alkali metal targets, we has accidentally found a phenomenon that intense negative ions are formed from a surface which is covered by alkali metal. New ionization method using this phenomenon was developed.
Negative ion spectra were measured for perfluorokerosene (CnF2n+2). While negative ions whose m/z are lower than 1000u were major ions observed by negative chemical ionization method, intense negative ions whose m/z are higher than 1000 u were observed by the newly developed ion source. From this comparison, it is demonstrated that the newly developed ion source using electron transfer from alkali metal on the surface is very soft ionization method for chemical whose mass are higher than 1000 u.
|
