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1 Mass Spectroscopy(MS)

2 EI electron impact, electron impact ionization, electron bombardment ionization ( ) IUPAC electron ionization ( ) ( 31 (1997))

3 MS m/z( / ) 1

4 C C 98.9% 13 C 1.1%

5 m/z m z m/z M 1 M + 2 M 2+ M 2+ M (m/2) 1 n M n+ 2 3 m mm + 1 1

6 (Cl 2 ) 35 Cl 76% 37 Cl 24% 3 35 Cl Cl 37 Cl

7 102 OH EI MALDI ESI

8 (M + ) M + conjugated olefin alicyclic static chain thiol ketone ester ether carboxylic acid

9 Electron impact electron ionization

10 (Ar, Xe)

11 MALDI Matrix Assisted Laser Desorption/Ionization MALDI (Matrix) 337nm Analyte 100nm nsec

12 EI-MS ( - 18) TBDMS Bu ( )

13 EI-MS ( ) FAB-MS FAB-MS ESI-MS FD-MS FAB-MS(+) FAB-MS ESI-MS

14

15

16 (m) (z) m/z

17 ( ) V(V=2 8 kv) ( )

18 ( ) ( ) R

19 (Time-of-flight, ) L t (1 ) v (1 ) TOF

20 (EI,FI) (FD) (FAB) EI.FI ( ) EI,CI FI-MS

21 EI,CI FI EI-MS GC- MS(HRGC-MS) ( ) ( ) FRIT-FAB ESI,EI

22 GC or LC

23

86 MS MS GC LC GC LC Fig. 1.MS 3. 質 量 分 析 計 の 構 成 1 試 料 導 入 部 2イオン 化 部 3イオン 分 離 部 4イオン 検 出 部 5データ 処 理 部 10 4 10 6 Pa Fig. 2.

86 MS MS GC LC GC LC Fig. 1.MS 3. 質 量 分 析 計 の 構 成 1 試 料 導 入 部 2イオン 化 部 3イオン 分 離 部 4イオン 検 出 部 5データ 処 理 部 10 4 10 6 Pa Fig. 2. Bulletin of Osaka University of Pharmaceutical Sciences 6 (2012) 85 有 機 化 学 実 験 のための 易 しいマススペクトロメトリー Concise Mass Spectrometry for Experiments of Organic Chemistry Note Mihoyo Fujitake Osaka University

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