Table Of ContentNANOCHROMATOGRAPHY
AND NANOCAPILLARY
ELECTROPHORESIS
NANOCHROMATOGRAPHY
AND NANOCAPILLARY
ELECTROPHORESIS
Pharmaceutical and Environmental
Analyses
IMRAN ALI
HASSAN Y. ABOUL-ENEIN
VINOD K. GUPTA
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LibraryofCongressCataloging-in-PublicationData:
Ali,Imran.
Nanochromatographyandnanocapillaryelectrophoresis:pharmaceuticalandenvironmental
analyses/ImranAli,HassanY.Aboul-Enein,VinodK.Gupta.
p.;cm.
Includesbibliographicalreferencesandindex.
ISBN978-0-470-17851-5(cloth)
1. Chromatographicanalysis. 2. Capillaryelectrophoresis. 3. Drugs—Analysis.
4. Pollutants—Analysis. 5. Environmentalpollutants—Analysis. 6. Nanoparticles—Analysis.
I.Aboul-Enein,HassanY. II.Gupta,VinodKumar,1953– III.Title.
[DNLM: 1. Nanotechnology—methods. 2. Electrophoresis,Capillary—methods.
3. EnvironmentalPollutants—analysis. 4. PharmaceuticalPreparations—analysis.
QT36.5A398n2009]
QP519.9.C47A452009
5430.8—dc22
2008033275
PrintedintheUnitedStatesofAmerica
10 9 8 7 6 5 4 3 2 1
To the memories of my late parents:
Basheer Ahmed and Mehmudan Begum.
I. A.
To my wife, Nagla, whose love and devotion
have been an inspiration to me.
H. Y. A.-E.
To the memoryof my late father Sri Jeewan Lal Gupta
who has been my mentorall through.
V. K.G.
CONTENTS
PREFACE xiii
ACKNOWLEDGMENTS xv
1 Introduction 1
1.1. Nanoanalyses / 1
1.2. Definition of Nanochromatographyand Nanocapillary
Electrophoresis / 2
1.3. Nanochromatographyand Nanocapillary Electrophoresis / 3
1.4. Fabrication of Microdevices / 4
1.5. Developments in Nanoanalyses / 6
1.6. Data Integration / 7
1.7. Protocol of Nanoanalyses / 10
1.8. Scope of the Book / 12
1.9. Conclusion / 12
References / 12
2 Fabrication of Microchips 17
2.1. Introduction / 17
2.2. Substrates / 18
vii
viii CONTENTS
2.3. Techniques of Fabrication / 20
2.3.1. Glass Chips / 22
2.3.2. Quartz Chips / 28
2.3.3. Silica Chips / 31
2.3.4. Polymer Chips / 34
2.3.5. Plastic Chips / 36
2.3.6. Chips and the Polymerase Chain Reaction / 37
2.4. Surface Modification / 39
2.4.1. Modification by Polymers / 40
2.4.2. Modification by Silica Gel / 42
2.4.3. Modification by Monolithics / 44
2.4.4. Modification by Sulfonation / 44
2.5. Designs of Chips / 45
2.6. Bindings in Chips / 49
2.7. Conclusion / 50
References / 51
3 Instrumentation of Nanochromatography and
Nanocapillary Electrophoresis 59
3.1. Introduction / 59
3.2. Nanoliquid Chromatography (NLC) / 60
3.2.1. Mobile Phase Reservoirs / 62
3.2.2. Mobile Phases and Flow Calibration / 62
3.2.3. Mobile Phase Tubings / 63
3.2.4. Solvent Delivery Pump / 64
3.2.5. Sample Injector / 66
3.2.6. Separation Chips / 68
3.2.7. Detectors / 70
3.2.8. Recorder / 71
3.2.9. Sample Preparation Units / 72
3.3. Nanocapillary Electrophoresis / 74
3.3.1. Separation Chip / 76
3.3.2. Background Electrolyte and
Its Reservoirs / 79
3.3.3. Sample Injection Port / 79
3.3.4. Detectors / 82
CONTENTS ix
3.3.5. Recorder / 83
3.3.6. Sample Preparation Units / 83
3.4. Conclusion / 85
References / 86
4 Detection in Nanochromatography and
Nanocapillary Electrophoresis 91
4.1. Introduction / 91
4.2. Mass Spectrometer Detectors / 92
4.3. Fluorescence Detectors / 97
4.4. Electrochemical Detectors / 99
4.5. Element Specific Detectors / 101
4.6. Miscellaneous Detectors / 103
4.7. Conclusion / 105
References / 105
5 Sample Preparation in Nanochromatography
and Nanocapillary Electrophoresis 109
5.1. Introduction / 109
5.2. Sample Preparation / 111
5.3. Sampling / 111
5.3.1. Biological Samples / 111
5.3.1.1. Blood / 112
5.3.1.2. Urine / 112
5.3.1.3. Tissues / 112
5.3.1.4. Plants / 113
5.3.1.5. Food Stuffs / 113
5.3.2. Environmental Samples / 113
5.3.2.1. Air / 113
5.3.2.2. Water / 114
5.3.2.3. Sediment and Soils / 115
5.4. Preservation / 115
5.5. Filtration / 116
5.6. Digestion/Homogenization / 118
5.7. Extractions / 119
5.8. Clean Up / 119
5.9. Preconcentration / 121
x CONTENTS
5.10. Off-Line Nanosample Preparation Methods / 121
5.10.1. Nano Solid Phase Extractions / 121
5.10.2. Nano Membrane Extractions / 123
5.10.3. Nano Miscellaneous Extractions / 124
5.11. Online Nanosample Preparation Methods / 125
5.12. Conclusion / 138
References / 138
6 Nano-High Performance Liquid Chromatography 145
6.1. Introduction / 145
6.2. Nano-HPLC / 146
6.3. Applications / 146
6.3.1. Nano-HPLCof Biological Matrices / 146
6.3.1.1. Proteomics / 147
6.3.1.2. Drugs Development and Design / 151
6.3.1.3. Environmental Analysis / 155
6.4. Optimization of Separations in Nano-HPLC / 161
6.5. Troubleshooting in Nano-HPLC / 161
6.6. Conclusion / 161
References / 162
7 Nanocapillary Electrochromatography and
Nanomicellar Electrokinetic Chromatography 167
7.1. Introduction / 167
7.2. Nanocapillary Electrochromatography / 167
7.2.1. Biological Samples / 168
7.2.2. Environmental Samples / 177
7.2.3. Mechanism of Separation / 181
7.3. Nanomicellar Electrokinetic
Chromatography / 181
7.3.1. Biological Samples / 182
7.3.2. Environmental Samples / 184
7.3.3. Mechanisms of Separation / 187
7.4. Conclusion / 188
References / 188
CONTENTS xi
8 Nanocapillary Electrophoresis 191
8.1. Introduction / 191
8.2. Optimization / 192
8.3. Applications / 200
8.3.1. Proteomics / 200
8.3.2. Genomics / 205
8.3.3. Amino Acids / 210
8.3.4. Drug Development and Design / 211
8.3.5. Enzymes and Hormones / 214
8.3.6. Biological Fluids / 218
8.3.7. Foods and Beverages / 221
8.3.8. Viruses and Bacteria / 224
8.3.9. Explosives / 226
8.3.10. Environmental Analyses / 228
8.3.11. Miscellaneous Applications / 232
8.4. Mechanism of Separation / 234
8.5. Conclusion / 234
References / 235
9 Chiral Separations by Nanoliquid Chromatography
and Nanocapillary Electrophoresis 245
9.1. Introduction / 245
9.2. Nanoliquid Chromatography / 246
9.3. Nanocapillary Electrophoresis / 249
9.4. Mechanisms of Chiral Separation / 260
9.5. Conclusion / 261
References / 261
10 Perspectives on Nanoanalyses 263
10.1. Introduction / 263
10.2. Future of Microfluidic Devices / 264
10.3. Future Challenges / 265
10.4. Conclusion / 266
References / 267
Subject Index 269
Description:Detection of drugs at low concentration is required in a variety of biological and medical situations, in order to avoid harmful side effects posed by some drug residues. The book details the instrumentation, detection, and application of nano chromatography (that is, any chromatographic and capilla