Liquid Chromatographic Analysis of Food and Beverages, Volume 2

Front Cover......Page 1
Liquid Chromatographic Analysis of Food and Beverages......Page 4
Copyright Page......Page 5
Table of Contents......Page 6
Contributors......Page 8
Foreword......Page 10
Contents of Volume 1......Page 12
CHAPTER 1. HIGH PRESSURE LIQUID CHROMATOGRAPHY "EVERYTHING A FOOD CHEMIST WANTED IN AN ANALYTICAL TECHNIQUE—AND MORE"......Page 14
REFERENCES......Page 30
INTRODUCTION......Page 32
PACKAGING......Page 35
INSTRUMENT CAPABILITY......Page 41
AUTOMATED SYSTEMS......Page 43
FACTORS TO CONSIDER WHEN SELECTING HPLC INSTRUMENTATION......Page 45
DEFINING INSTRUMENT REQUIREMENTS......Page 75
SUMMARY......Page 77
REFERENCES......Page 78
CHAPTER 3. STUDY OF FLAVOR CONSTITUENTS 
PRODUCED FROM L-RHAMNOSE-H2S-NH3 
MODEL SYSTEM USING HPLC......Page 80
I. INTRODUCTION......Page 81
II. EXPERIMENTAL......Page 83
III. PRELIMINARY EXPERIMENT WITH STANDARD SAMPLES......Page 88
IV. RESULTS AND DISCUSSION......Page 92
V. CONCLUSION......Page 105
REFERENCES......Page 106
I. INTRODUCTION......Page 108
II. EXPERIMENTAL......Page 112
III. RESULTS AND DISCUSSION......Page 114
IV. SUMMARY AND CONCLUSIONS......Page 127
REFERENCES......Page 128
II. SUGARS......Page 130
III. SUGAR ALCOHOLS......Page 134
IV. 4-METHYL IMIDIZOLE......Page 136
REFERENCES......Page 139
I. INTRODUCTION......Page 140
II. EXPERIMENTAL......Page 142
III. RESULTS AND DISCUSSION......Page 143
IV. SUMMARY......Page 154
REFERENCES......Page 155
CHAPTER 7.REDUCING SUGAR DERIVATIZATION FOR ULTRAVIOLET ABSORPTION DETECTION IN HPLC ANALYSES......Page 156
I. INTRODUCTION......Page 157
II. MATERIALS AND METHODS......Page 160
III. RESULTS AND DISCUSSION......Page 162
ACKNOWLEDGEMENTS......Page 169
REFERENCES......Page 170
INTRODUCTION......Page 174
EXPERIMENTAL......Page 175
RESULTS AND DISCUSSION......Page 176
REFERENCES......Page 186
PRACTICAL ADVANTAGES OF REVERSED-PHASE HPLC......Page 188
WHY SELECTIVITY AND RESOLUTION ARE IMPORTANT CONCEPTS......Page 189
THREE CHROMATOGRAPHIC INTERACTIONS......Page 190
RESOLUTION......Page 193
SOLVING REAL ANALYTICAL PROBLEMS......Page 195
THE TIME FACTOR......Page 197
SOLVENT CONSIDERATIONS......Page 198
THE INTERNAL STANDARD......Page 199
THE GUARD COLUMN......Page 201
PREPARATIVE COLUMNS......Page 203
THE ANALYTICAL COLUMN......Page 204
THE SYSTEM......Page 205
COLUMN REGENERATION......Page 206
FOOD AND BEVERAGES......Page 207
CONCLUSION......Page 215
REFERENCES......Page 216
CHAPTER 10.SEPARATION OF HOP COMPOUNDS BY REVERSE-PHASE HPLC......Page 218
I. INTRODUCTION......Page 219
III . RESULTS AND DISCUSSION......Page 221
REFERENCES......Page 251
INTRODUCTION......Page 254
ADVANTAGES OF CONCURRENT VITAMIN A AND VITAMIN Ε ANALYSIS......Page 255
HPLC ANALYSIS OF RETINOL BY REVERSE PHASE......Page 256
CONCURRENT DETERMINATION OF VITAMIN A AND VITAMIN Ε......Page 267
RESULTS AND DISCUSSION......Page 269
REFERENCES......Page 273
*I. INTRODUCTION......Page 276
II. PROCEDURES......Page 277
III. DISCUSSION......Page 282
V. REFERENCES......Page 285
CHAPTER 13.NEW APPROACHES TO THE ANALYSIS OF LOW MOLECULAR WEIGHT POLYMERS......Page 286
Molecular Weight Distribution......Page 288
Size Exclusion Chromatography......Page 289
Column Selection......Page 293
Examples......Page 297
Epoxy Resins......Page 299
Polyurethanes......Page 301
Polystyrene Oligomers......Page 302
Low Molecular Weight Polymer Analyses - Interactive Chromatography......Page 303
Reversed Phase Chromatography......Page 304
Non-Aqueous Reversed Phase (NARP) Chromatography......Page 305
Conclusion......Page 310
References......Page 311
I. INTRODUCTION......Page 314
II. MATERIALS AND METHODS......Page 315
III. RESULTS AND DISCUSSION......Page 318
REFERENCES......Page 334
Index For Volumes 1 and 2......Page 336