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- えりか わにべ
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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.
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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J. Mass Spectrom. Soc. Jpn.: 58(5), (2010)
J. Mass Spectrom. Soc. Jpn. Vol. 58, No. 5, 2010 REVIEW 9 Secondary Ion Mass Spectrometry (SIMS) SIMS SIMS Fundamentals of Mass Spectrometry Secondary Ion Mass Spectrometry (SIMS), Cluster SIMS, and Electrospray
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第 30 回 有機化合物の構造決定 (2) NMR NMR NMR 質量分析法 赤外分光法 NMR 1. 質量分析法の原理 1913 Thomson (Proc. R. Soc. Lond. A 1913, 89, 1 26) Thomson Thomson 20 Ne 22 Ne Thomson mv/qb m q v B m/q Thomson 1 EI 法 ( electron ionization,
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27.2.9 TOF-SIMS SIMS TOF-SIMS SIMS Mass Spectrometer ABCDE + ABC+ DE + Primary Ions: 1 12 ions/cm 2 Molecular Fragmentation Region ABCDE ABCDE 1 15 atoms/cm 2 Molecular Desorption Region Why TOF-SIMS?
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質量分析セミナー autoflex III LRF 韮澤崇 Bruker Daltonics K.K. MALDI Matrix Assisted Laser Desorption / Ionization マトリックス支援レーザー脱離イオン化 2 MALDI の基本原理 Matrix と Sample の混合結晶 LASER による Matrix の励起 脱離およびイオン化 ( プロトン化 ) LASER
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