Supercritical fluid extraction and its use in chromatographic sample preparation:
Gespeichert in:
| Format: | Buch |
|---|---|
| Sprache: | English |
| Veröffentlicht: |
London u.a.
Blackie
1993
|
| Ausgabe: | 1. ed. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | IX, 170 S. graph. Darst. |
| ISBN: | 0751400890 0849371074 |
Internformat
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Datensatz im Suchindex
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|---|---|
| adam_text | Supercritical Fluid Extraction
~ and its Use in
Chromatographic Sample
Preparation
Edited by
S A WESTWOOD
Head of Analytical Methods
Horseracing Forensic Laboratory Ltd
Newmarket
BLACKIE ACADEMIC amp; PROFESSIONAL
An Imprint of Chapman amp; Hall
London • Glasgow • New York • Tokyo • Melbourne • Madras
Published in the USA and Canada by CRC Press, Inc
Boca Raton, Florida
Contents
1 Introduction to supercritical fluid extraction in analytical science 1
A A CLIFFORD
1 1 Introduction 1
111 Basic principles of SFE 2
112 Pure and modified supercritical fluids 4
1 2 Extraction controlled by diffusion out of the matrix 7
121 Theoretical models for continuous extraction unlimited by solubility 7
122 Extrapolation of continuous extraction results 13
123 Treatment of discontinuous extraction data IS
124 Equations for continuous extraction models 17
1 3 Equations for discontinuous extraction 21
1 4 Extraction controlled by both solubility and diffusion 23
141 The effect of solubility limitation on continuous extraction 23
142 Models for solubility limitation 27
1 5 Solubilities in supercritical fluids 30
151 Experimental methods for obtaining solubility in an analytical laboratory 32
152 Prediction of solubility data 35
References 38
2 Methodology for off-line supercritical fluid extraction 39
S B HAWTHORNE
2 1 Introduction 39
2 2 The off-line SFE experiment 40
2 3 Instrumental considerations 42
231 Pumps 42
232 Extraction cells 45
233 Flow control devices (restrictors) 47
234 Analyte collection and recovery 49
2 4 Supercritical fluids and modifiers 50
2 5 Developing an off-line SFE method 54
2 6 New directions in off-line analytical SFE 60
2 7 Summary 63
References 63
3 Coupled (on-line) supercritical fluid extraction-gas
chromatography 65
S B HAWTHORNE
3 1 Introduction 65
3 2 Generalized approaches to SFE-GC coupling 66
3 3 Performing direct injection on-line SFE-GC 69
331 Basic instrumentation 69
332 Performing split SFE-GC 70
333 Performing on-column SFE-GC 73
334 Choosing an SFE-GC method 74
335 Optimizing SFE-GC methods 75
viii CONTENTS
336 Selection of extraction fluids for SFE-GC 81
337 Quantitative SFE-GC 84
3 4 Summary 85
References 86
4 Coupled supercritical fluid extraction-capillary supercritical
fluid chromatography 87
N J COTTON, M W RAYNOR and K D BARTLE
4 1 Introduction 87
4 2 Samples for which SFE-CSFC is applicable 92
4 3 Influence of the sample matrix 92
4 4 Instrumentation 93
441 Static extraction 93
442 Dynamic extraction with analyte accumulation 97
4 5 Trapping procedures 100
451 Trapping in uncoated fused silica retention gaps 101
452 Trapping on coated fused silica retaining pre-columns 102
453 Trapping on sorbent traps 103
4 6 Optimization of conditions for SFE-CSFC 103
4 7 Selected applications of SFE-CSFC 104
4 8 Conclusions 107
References 110
5 Supercritical fluid extraction coupled to packed column
supercritical fluid chromatography 112
IGM ANDERSON
5 5 Applications 138
5 6 Future prospects 141
References 142
Introduction
Packed vs capillary columns
Efficiency
Selectivity
Sample capacity
Detectors
Analysis times
Restrictors
Temperature
SFE coupled to packed column SFC
Supercritical fluid mobile phase
Supercritical fluid extraction
Supercritical fluid chromatography
SFE coupled to packed column SFC
Instrumental aspects
Back pressure regulators
Extraction vessels
On-line solute trapping and concentration
On-line sample introduction
Columns
Detectors
Fraction collection
CONTENTS ix
6 Supercritical fluid extraction-high performance liquid
chromatography: on-line and off-line strategies 145
A L HOWARD and L T TAYLOR
6 1 Introduction 145
6 2 On-line studies 146
6 3 Off-line studies 154
6 4 Conclusions 163
References 167
Index 169
|
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| id | DE-604.BV009715321 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T17:39:42Z |
| institution | BVB |
| isbn | 0751400890 0849371074 |
| language | English |
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| physical | IX, 170 S. graph. Darst. |
| publishDate | 1993 |
| publishDateSearch | 1993 |
| publishDateSort | 1993 |
| publisher | Blackie |
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| spelling | Supercritical fluid extraction and its use in chromatographic sample preparation ed. by S. A. Westwood 1. ed. London u.a. Blackie 1993 IX, 170 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Chromatographie en phase supercritique ram Cromatografia em liquido larpcal Cromatografia larpcal Extraction par fluides supercritiques ram Supercritical fluid chromatography Supercritical fluid extraction Vorbereitung (DE-588)4188638-0 gnd rswk-swf Chromatographie (DE-588)4010153-8 gnd rswk-swf Probe (DE-588)4258863-7 gnd rswk-swf Destraktion (DE-588)4124778-4 gnd rswk-swf Chromatographie (DE-588)4010153-8 s Probe (DE-588)4258863-7 s Vorbereitung (DE-588)4188638-0 s Destraktion (DE-588)4124778-4 s DE-604 Westwood, S. A. Sonstige oth HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=006426597&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Supercritical fluid extraction and its use in chromatographic sample preparation Chromatographie en phase supercritique ram Cromatografia em liquido larpcal Cromatografia larpcal Extraction par fluides supercritiques ram Supercritical fluid chromatography Supercritical fluid extraction Vorbereitung (DE-588)4188638-0 gnd Chromatographie (DE-588)4010153-8 gnd Probe (DE-588)4258863-7 gnd Destraktion (DE-588)4124778-4 gnd |
| subject_GND | (DE-588)4188638-0 (DE-588)4010153-8 (DE-588)4258863-7 (DE-588)4124778-4 |
| title | Supercritical fluid extraction and its use in chromatographic sample preparation |
| title_auth | Supercritical fluid extraction and its use in chromatographic sample preparation |
| title_exact_search | Supercritical fluid extraction and its use in chromatographic sample preparation |
| title_full | Supercritical fluid extraction and its use in chromatographic sample preparation ed. by S. A. Westwood |
| title_fullStr | Supercritical fluid extraction and its use in chromatographic sample preparation ed. by S. A. Westwood |
| title_full_unstemmed | Supercritical fluid extraction and its use in chromatographic sample preparation ed. by S. A. Westwood |
| title_short | Supercritical fluid extraction and its use in chromatographic sample preparation |
| title_sort | supercritical fluid extraction and its use in chromatographic sample preparation |
| topic | Chromatographie en phase supercritique ram Cromatografia em liquido larpcal Cromatografia larpcal Extraction par fluides supercritiques ram Supercritical fluid chromatography Supercritical fluid extraction Vorbereitung (DE-588)4188638-0 gnd Chromatographie (DE-588)4010153-8 gnd Probe (DE-588)4258863-7 gnd Destraktion (DE-588)4124778-4 gnd |
| topic_facet | Chromatographie en phase supercritique Cromatografia em liquido Cromatografia Extraction par fluides supercritiques Supercritical fluid chromatography Supercritical fluid extraction Vorbereitung Chromatographie Probe Destraktion |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=006426597&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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