Free Download Chromatography And Separation Science By Satinder Ahuja – Vol. 4

Chromatography And Separation Science Vol. 4 By Satinder Ahuja

Authors:
Satinder Ahuja
Ahuja Consulting
Calabash, North Carolina

Table of Contents

PREFACE ix

1 Relating Chromatography to Separations

1. Defining Separation 2
2. Evolution of Chromatography 3

III. Separations in Everyday Life 6

1. Basis of Separations 7
2. Modes of Chromatography 13
3. Unified Separation Science 14

VII. Selectivity and Detectability 15

References 16

Questions for Review 16

2 Simple Separation Methods

1. Evaporation 18
2. Precipitation 18

III. Crystallization 19

1. Filtration 19
2. Membrane Separations 21
3. Distillation 24

VII. Extraction 26

References 35

Questions for Review 35

3 Equilibrium Processes in Separations

1. Molecular Interactions 38
2. Separation Thermodynamics 38

References 48

Questions for Review 48

4 The Molecular Basis of Separation

1. Molecular Interactions 49
2. Solubility Parameter Theory 60

III. Group Interactions 65

References 67

Questions for Review 67

5 Mass Transport and Separation

1. Types of Diffusion 70
2. Modelling Diffusion 71

III. Chromatographic Implications 72

1. Diffusion Rates in Various Media 74
2. Mass Transfer 77

References 79

Questions for Review 79

6 Chromatographic Methods

1. General Classification of Chromatographic Methods 84
2. Classification Based on Retention Mode 87

III. Classification Based on Sample Introduction 90

1. Separation Characteristics of Chromatographic Methods 93
2. Basic Chromatographic Theory 95

References 99

Questions for Review 100

7 Paper Chromatography

1. Chromatography Paper 102
2. Sample Preparation 103

III. Sample Cleanup 104

1. Derivatization 105
2. Mobile Phases and Stationary Phases 106
3. Development of Chromatograms 110

VII. Detection 111

VIII. Quantitation 112

References 112

Questions for Review 112

8 Thin-Layer Chromatography

1. Stationary Phases for TLC 114
2. TLC of Enantiomeric Compounds 117

III. Sample Application 119

1. Mobile Phases 123
2. Development of Chromatograms 124
3. Detection and Quantitation 125

VII. Applications 126

References 131

Questions for Review 131

9 Gas Chromatography

1. Equipment 134
2. Separation Process 135

III. Columns 136

1. Gas Chromatographic Detectors 142
2. Recording and Analysis 145
3. Resolution 146

VII. Selection of a Stationary Phase 147

References 152

Questions for Review 152

10 High-Pressure Liquid Chromatography

1. Evolution of HPLC 154
2. Advantages over Gas Chromatography (GC) 155

III. Separation Process 157

1. Retention Parameters in HPLC 160
2. Resolution and Retention Time 163
3. Equipment 167

VII. Separation Mechanism in HPLC 168

VIII. Stationary Phase Effects 179

1. A Case Study of Retention Mechanism Investigations 180
2. Molecular Probes/Retention Index 182
3. Mobile Phase Selection and Optimization 185

References 205

Questions for Review 208

11 Evolving Methods and Method Selection

1. Evolving Methodologies 211
2. Selection of a Separation Method 220

III. Chiral Separations 223

1. Comparison of GC, SFC, HPLC, and CEC for a Selective Separation 239

References 240

Questions for Review 241
Index 243

Chromatography And Separation Science Vol. 4 By Satinder Ahuja

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