Transcription of (Gas Chromatography /Mass Spectrometry) (Mass …
1 / (Gas Chromatography / mass spectrometry ) ( mass Selective Detector) GC MS Autosampler D/B GC .. (MS) .. GC/MS GC , ( , , ) . GC , (MS) MS . MS (Mass Spectroscopy) , (m/z) (m/z) ( mass spectrum) , , .. - MS (fragments) . - / (m/z) signal . * / (Abundance) mass spectrum . - mass spectrum - +1 ( ex.)
2 ABCD+) * (AB+, BC+, CD+, DA+) MS MS/MS MS/MS Sample Ion source mass Spectroscopy Detector Data System Ar Xe N2 Cs+ TOF Quadrupole Magnetic-sector Micro-channel Plate Electron Multiplier Faraday cup PEM PC Sims / Ms Spectroscopy Static SIMS(2) Positive mass spectrum from polyethylene Primary ion beam source Source * Positive charged ions(Ar+, Xe+) Negative charged ions(Ar , Xe) or N2+, O2+ , Cs+ SIMS / MS , SIMS SIMS MS MS Inlet Vacuum pump 10-5 ~ 10-8 torr (gas) (+1) m/z ( ) Inlet Vacuum pump 10-5 ~ 10-8 torr (gas) (+1) m/z ( ) ICPMS DCPMS MIPMS SSMS TIMS GDMS SIMS LMMS 2.
3 MS Quadrupole Double focusing Time of Flight(TOF) 3. (EMT) Faraday Cup (AgBr ) EMT 1. Ar plasma Ar plasma Ar plasma RF - spark plasma glow plasma Laser beam - - , signal - . - MS Ion Source . - mass Filter . - . - Lensing System , . * (Continuous Dynode Electron Multiplier).
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