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Split and splitless injection for quantitative gas chromatography : concepts, processes, practical guidelines, sources of error / Konrad Grob.

Chemistry Library - Books QD79.C45 G78 2001 1 v. + disc
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Format:
Book
Author/Creator:
Grob, Konrad.
Contributor:
Grob, Konrad.
Language:
English
Subjects (All):
Gas chromatography--Methodology.
Gas chromatography.
Sample introduction (Chemistry).
Physical Description:
xx, 460 pages : illustrations ; 25 cm + 1 computer optical disc (4 3/4 in.)
Edition:
Fourth, completely revised edition.
Place of Publication:
Weinheim ; New York : Wiley-VCH, 2001.
System Details:
text file
Contents:
A, Syringe injection into hot vaporizing chambers. Introduction
Syringes
Evaporation inside the needle
How much is really injected?
Syringe needle handling minimizing discrimination
Dependence of discrimination on sample volume
Solvent and solutes
Injector temperature
Plunger-in-needle syringes
Possibilities of avoiding evaporation in the needle
Summarizing guidelines
B, Sample evaporation in the injector. Introduction
Solvent evaporation
heat transfer
visual observation
Solute evaporation
Sample degradation in the injector
Retention and adsorption in the vaporizing chamber
Deactivation of liners and packing materials
Cleaning of injector liners
C, Split injection. Introduction
The split ratio
Sample concentrations suitable for split injection
Initial band widths
Split injection for fast analysis
Analysis requiring maximum sensitivity
High split ratios for reducing the sample size
Problems concerning the split ratio
Problems concerning linearity of splitting
Techniques for improving quantitative analysis
General evaluation of split injection
D, Splitless injection. Introduction
How to perform splitless injection
Sample volumes suitable for splitless injection
Injection of large volumes
Sample transfer into the column
Problems with quantitative analysis
Reconcentration of initial bands
Related injection methods
General evaluation of splitless injection
E, Injector design. Vaporizing chamber
Surroundings of the vaporizing chamber
Autosamplers
The gas regulation systems.
Notes:
Previous ed. published as: Split and splitless injection in capillary gas chromatography. Heidelberg : Hüthig Buch Verlag, 1993.
Includes bibliographical references and index.
ISBN:
3527298797
OCLC:
43818943

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