scholarly journals Experiments with the LECO Pegasus Gas Chromatograph/ Time-of-Flight Mass Spectrometer Phase 2: 2D Fast GC Separations Rev. 1.2

2012 ◽  
Author(s):  
H Mulcahy ◽  
C Koester
Keyword(s):  
Mass Spectrometer ◽  
Time Of Flight ◽  
Phase 2 ◽  
Gas Chromatograph ◽  
Flight Mass Spectrometer ◽  
Fast Gc

Investigation on the structural features of Zhundong subbituminous coal through ruthenium ion-catalyzed oxidation

RSC Advances ◽  
2016 ◽  
Vol 6 (15) ◽  
pp. 11952-11958 ◽  
Author(s):  
Jing-Hui Lv ◽  
Xian-Yong Wei ◽  
Ying-Hua Wang ◽  
Tie-Min Wang ◽  
Jing Liu ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Atmospheric Pressure ◽  
Time Of Flight ◽  
Structural Features ◽  
Gas Chromatograph ◽  
Flight Mass Spectrometer ◽  
Catalyzed Oxidation

The structural features of Zhundong subbituminous coal were investigated by RICO and subsequent analysis with a gas chromatograph/mass spectrometer and an atmospheric pressure solid-analysis probe/time of flight-mass spectrometer.

Real time monitoring of gases emitted from soils using a multi-turn time-of-flight mass spectrometer “MULTUM-S II”

2014 ◽  
Vol 16 (12) ◽  
pp. 2752-2757 ◽  
Author(s):  
Takahiro Anan ◽  
Shuichi Shimma ◽  
Yo Toma ◽  
Yasuyuki Hashidoko ◽  
Ryusuke Hatano ◽  
...  
Keyword(s):  
Real Time ◽  
Mass Spectrometer ◽  
Time Of Flight ◽  
Gas Chromatograph ◽  
Real Time Monitoring ◽  
Simultaneous Quantification ◽  
Flight Mass Spectrometer

The ability of simultaneous quantification of the gaseous compounds (CO2, N2O) emitted from soils within 1 minute have been demonstrated by using a fast gas chromatograph - multi-turn time-of-flight mass spectrometer.

FORMATION DES DÉRIVÉS PENTAFLUOROSULFURES ÉTHYLÈNIQUES, DIÈNIQUES ET ACÉTYLÈNIQUES

1965 ◽  
Vol 43 (1) ◽  
pp. 219-223 ◽  
Author(s):  
Méùde Tremblay
Keyword(s):  
Mass Spectrometry ◽  
Mass Spectrometer ◽  
Time Of Flight ◽  
Gas Chromatograph ◽  
Flight Mass Spectrometer

The reaction of disulfur decafluoride with olefins, dienes, and acetylenes has been studied under pressure at 125–140 °C. The gases formed have been separated and identified with a gas chromatograph coupled to a time-of-flight mass spectrometer. Liquid pentafluorosulphur derivatives, studied by mass spectrometry, were attributed the following structures: CH2FCHClSF5, CH2FCHBrSF5, CH2FCHBrCH2CHBrSF5, CH2FCHFCH2CHFSF5, and CH2=CHCHFCH2SF5. Addition compounds of dienes or acetylenes have structures assumed to be FCH2CF2CH2SF5 from propadiene and C2H5CF2CHFSF5 from ethyl acetylene.

Source and Multiplier Modifications of a Time-of-Flight Mass Spectrometer to Increase Sensitivity

1964 ◽  
Vol 18 (5) ◽  
pp. 134-136 ◽  
Author(s):  
W. K. Rohwedder ◽  
E. Selke ◽  
E. D. Bitner
Keyword(s):  
Mass Spectrometer ◽  
Time Of Flight ◽  
Gas Chromatograph ◽  
Electron Multiplier ◽  
Carrier Gas ◽  
Flight Mass Spectrometer ◽  
Front End ◽  
Ionization Mode ◽  
Magnetic Electron ◽  
Instrument Sensitivity

The usefulness of a gas chromatograph and a mass spectrometer in tandem to analyze odor constituents is limited by the sensitivity of the mass spectrometer and by the large amount of helium carrier gas compared with the amount of sample A time-of-flight mass spectrometer was fitted with a tightly enclosed source and operated in a continuous ionization mode to increase instrument sensitivity A gate pulse was applied to the front end of the magnetic electron multiplier to eliminate the electrons due to the helium pulse before they reached the multiplier dynode strips This procedure prevented saturation of the multiplier by the helium carrier gas.

A TIME-OF-FLIGHT MASS SPECTROMETER FOR SIMS AND FIELD IONISED NEUTRAL ANALYSIS USING A PULSED LMIS

1987 ◽  
Vol 48 (C6) ◽  
pp. C6-577-C6-582 ◽  
Author(s):  
A. R. Waugh ◽  
D. R. Kingham ◽  
C. H. Richardson ◽  
M. Goff
Keyword(s):  
Mass Spectrometer ◽  
Time Of Flight ◽  
Flight Mass Spectrometer
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