Gehe zur Google Groups Homepage
Groups 
Erweiterte Groups-Suche     
 
View with framesSortiert nach Antwort  Sortiert nach Datum
Alle Beiträge des Diskussionsthemas "Fast GC"
  
Message 1 in thread
Von:c.z42@gmx.net (c.z42@gmx.net)
Betrifft:Fast GC
Newsgroups:sci.techniques.mass-spec
View this article only
Datum:2001-09-19 06:35:07 PST
I have to present some applications of Fast-GC to our MS hardware
developers. Does anyone have good referneces where Peaks with widths of
less than 1 second are shown ?
Message 2 in thread
Von:Tobias Kind (kind@rziris.rz.uni-leipzig.de)
Betrifft:Re: Fast GC
Newsgroups:sci.techniques.mass-spec
View this article only
Datum:2001-09-20 05:30:03 PST
"c.z42@gmx.net" wrote:

} I have to present some applications of Fast-GC to our MS hardware
} developers. Does anyone have good referneces where Peaks with widths of
} less than 1 second are shown ?

Dear Carsten,

*  ten compounds within 500 ms
Evaluation of time-of-flight mass spectrometric detection for fast gas
chromatography,
Journal of Chromatography A, Volume 878, Issue 2, 12 May 2000, Pages
205-213
M. M. van Deursen, J. Beens, H. -G. Janssen, P. A. Leclercq and C. A.
Cramers

* Fast, Very Fast, and Ultra-Fast Gas Chromatography-Mass Spectrometry of
Thermally Labile Steroids,
Carbamates, and Drugs in Supersonic Molecular Beams
S. Dagan and A. Amirav. J. Am. Soc. Mass Spectrom. 7 (1996), p. 737.

Prof. Amirav also has a page with a fine book showing a lot of gc-runs with
times
under 250 msecs. http://www.tau.ac.il/chemistry/amirav/smbms.shtml

*High-speed gas chromatography: an overview of various concepts,
Journal of Chromatography A, Volume 856, Issues 1-2, 24 September 1999,
 Pages 315-329  Carel A. Cramers, Hans-Gerd Janssen, Marieke M. van Deursen
and Piet A. Leclercq

* also JChromA : Vol 842 and Vol 856 have some articles and
High-speed gas chromatography: an overview of various concepts, Pages
315-329
Carel A. Cramers, Hans-Gerd Janssen, Marieke M. van Deursen and Piet A.
Leclercq
Volume 856, Issues 1-2,

shows this often copied sample (separation of alkanes within 600 ms
from van Es, 2xCramers,Rijks - HRC 11 (1988) very nice ...

*Flash GC
Instrumentation and applications of fast high-resolution capillary gas
chromatography,
Journal of Chromatography A, Volume 842, Issues 1-2, 21 May 1999, Pages
309-319
F. David, D. R. Gere, F. Scanlan and P. Sandra

You will also find alot of other examples (peak width < 1sec) if you search
for applications from
* LECO PEGASUS II
* Restek Flash-GC (EZ-Flash)
* keywords GCxGC comprehensive GC from Analytical Chemistry


With kind regards
Tobias Kind

PS: What means low-cost for the SensiTOF ?
Under 50.000 Euro ?
Message 3 in thread
Von:Don Drinkwater (drinkwd@basf-corp.com)
Betrifft:Re: Fast GC
Newsgroups:sci.techniques.mass-spec
View this article only
Datum:2001-09-20 06:20:04 PST
I used to do a lot of "fast" GC/MS when I worked for Texaco.  There is
a chapter in the recent book "Current Practice of Gas
Chromatography-Mass Spectrometry" edited by W.M.A. Niessen (publisher
Marcel-Dekker) authored by myself and Sam Hsu which shows on pg. 70 a
30-second blow-up of overlaid mass chromatograms of gasoline (we
implemented a 90-min ASTM D5769 method as a 9 min. method on a 0.10mm
ID column).  The peaks are about 1 second at the base and 0.4 seconds
at half-height.  The quad was scanning at 20 scans/second to get good
profiles.

Hope this helps.
Sincerely,

Don Drinkwater
Message 4 in thread
Von:Phil (gothics@free.fr)
Betrifft:Re: Fast GC
Newsgroups:sci.techniques.mass-spec
View this article only
Datum:2001-09-20 07:30:04 PST
You can also check the applications published by ThermoFinnigan on their
Website
Message 5 in thread
Von:Karen (karencee@yahoo.com)
Betrifft:Re: Fast GC
Newsgroups:sci.techniques.mass-spec
View this article only
Datum:2001-09-20 17:45:04 PST
I do the comprehensive two-dimensional gas chromatography (GCxGC) mentioned
by the post below.  In complex samples, I have observed up to 20 peaks in a
10 second chromatogram with peak widths ranging between 100 and 200 msec.
The big difference between my work and the references listed below is that
those chromatograms go from start to finish in a second or two and have 10
peaks, while in GCxGC there will be several hundred sequential fast
chromatograms, each containing numerous 100 msec wide peaks.  Since the
total analysis can run to several hours, the 100-200 Hz mass spectrum rate
will produce massive data files.

Glenn Frysinger


"Tobias Kind" <kind@rziris.rz.uni-leipzig.de> wrote in message
news:9ocnd4$1b4$1@news-int.gatech.edu...
}
}
} "c.z42@gmx.net" wrote:
}
} } I have to present some applications of Fast-GC to our MS hardware
} } developers. Does anyone have good referneces where Peaks with widths of
} } less than 1 second are shown ?
}
} Dear Carsten,
}
} *  ten compounds within 500 ms
} Evaluation of time-of-flight mass spectrometric detection for fast gas
} chromatography,
} Journal of Chromatography A, Volume 878, Issue 2, 12 May 2000, Pages
} 205-213
} M. M. van Deursen, J. Beens, H. -G. Janssen, P. A. Leclercq and C. A.
} Cramers
}
} * Fast, Very Fast, and Ultra-Fast Gas Chromatography-Mass Spectrometry of
} Thermally Labile Steroids,
} Carbamates, and Drugs in Supersonic Molecular Beams
} S. Dagan and A. Amirav. J. Am. Soc. Mass Spectrom. 7 (1996), p. 737.
}
} Prof. Amirav also has a page with a fine book showing a lot of gc-runs with
} times
} under 250 msecs. http://www.tau.ac.il/chemistry/amirav/smbms.shtml
}
} *High-speed gas chromatography: an overview of various concepts,
} Journal of Chromatography A, Volume 856, Issues 1-2, 24 September 1999,
}  Pages 315-329  Carel A. Cramers, Hans-Gerd Janssen, Marieke M. van Deursen
} and Piet A. Leclercq
}

Lesen Sie den Rest der Nachricht... (38 zusätzliche Zeilen)

  

©2002 Google

© 2002 Tobias Kind - www.amdis.net - Alle Rechte vorbehalten.