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Analysis with Supercritical Fluids: Extraction and Chromatography

The use of supercritical fluids in analytical chemistry is still grow­ ing. More and more analysts are discovering the favorable advan­ tages for a number of applications. Especially supercritical fluid extraction (SFE) has attracted a lot of interest in recent years due to its simplicity. Supercrit...

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Bibliographic Details
Other Authors: Wenclawiak, Bernd (Editor)
Format: eBook
Language:English
Published: Berlin, Heidelberg Springer Berlin Heidelberg 1992, 1992
Edition:1st ed. 1992
Subjects:
Food Science
Analytical Chemistry
Biochemistry
Online Access:
Collection: Springer Book Archives -2004 - Collection details see MPG.ReNa
Table of Contents:
  • 5.2 Temperature Gradients
  • 5.3 Pressure Gradients
  • 5.4 Density Gradients
  • 5.5 Velocity Gradients
  • 5.6 References
  • 6 injection Techniques in SFC
  • 6.1 introduction
  • 6.2 The Physical State of The Sample
  • 6.3 introduction of Supercritical Fluid Extracts
  • 6.4 introducing a Solution
  • 6.5 Peak Focusing
  • 6.6 Direct injection
  • 6.7 Open Split (Dynamic Split) injection
  • 6.8 Timed Split injection
  • 6.9 Solvent Effects on Peak Shape
  • 6.10 Solvent Venting with A Precolumn
  • 6.11 Solvent Backflush
  • 6.12 Solvent Venting with Gas Purging
  • 6.13 Sample Losses in The injector
  • References
  • 7 Stationary Phases For Packed Column Supercritical Fluid Chromatography
  • 7.1 introduction
  • 7.2 Physical Properties of Column Packings
  • 7.3 influence of Substrate Morphology on The Properties of Chemically Bonded Phases in SFC
  • 7.4 influence of SurfaceHeterogeneity on The Properties of Chemically Bonded Phases
  • 7.5 Macroporous Polymeric Packings
  • 1 SFC and SFE: An Introduction for Novices
  • 2 Physico-Chemical Principles of Supercritical Fluid Separation Processes
  • 2.1 Introduction
  • 2.2 Physico-Chemical Properties of Pure Supercritical Solvents
  • 2.3 Phase Equilibria of Fluid Mixtures
  • 2.4 Physico-Chemical Applications of Sfc
  • References
  • 3 Basic Principles of Analytical Supercritical Fluid Extraction
  • 3.1 The Development of Analytical SFE
  • 3.2 Fluid Properties in SFE
  • 3.3 Optimizing Experimental Conditions For Analytical SFE
  • 3.4 The Relevance of Sfc-Derived Data To Analytical SFE
  • 3.5 The Practice of Analytical SFE
  • 3.6 Sample Matrix Effects in SFE
  • 3.7 Problems and Future Research Needs in Analytical SFE
  • References
  • 4 Coupled Supercritical Fluid Extraction-Capillary Gas Chromatography (SFE-GC)
  • 4.1 introduction
  • 4.2 Performing SFE-GC
  • 4.3 Abilities and Limitations of Split and On-Column SFE-GC
  • 4.4 Summary
  • References
  • 5 Gradients in SFC
  • 5.1 Overview
  • 7.6 Column Packings Used For Special Applications
  • 7.7 Conclusions
  • References
  • 8 Enantiomer Separation By Capillary Supercritical Fluid Chromatography
  • 8.1 introduction
  • 8.2 General Aspects
  • 8.3 Packed Column SFC
  • 8.4 Open Tubular Column SFC
  • 8.5 Conclusion
  • References
  • 9 Supercritical Fluid Chromatography/Mass Spectrometry
  • 9.1 introduction
  • 9.2 Early investigations of SFC/MS
  • 9.3 SFC/MS Using Direct introduction interfaces
  • 9.4 SFC/MS Using High-Flow-Rate interfaces
  • 9.5 Supercritical Fluid injection/Mass Spectrometry
  • 9.6 Conclusion
  • References
  • 10 Supercritical Fluid Chromatography with FT-IR Detection
  • 10.1 introduction
  • 10.2 Flow Cell Approach
  • 10.3 Solvent Elimination Approach
  • 10.4 Summary
  • References
  • 11 Supersonic Jet Spectroscopy with Supercritical Fluids
  • 11.1 introduction
  • 11.2 Supersonic Jet Spectroscopy
  • 11.3 High Pressure Fluid injection For Nonvolatile Samples
  • 11.4 Supercritical Fluid Chromatography and Supersonic Jet Spectroscopy
  • 11.5 Conclusions
  • References
  • Basic References Analytical Scale SFC/SFE
  • Recommended Literature

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