简介:LIQUID CHROMATOGRAPHY
CONTENTS
Introduction....................................................................................... 1
The Basic Liquid Chromatograph....................................................简介:LIQUID CHROMATOGRAPHY
CONTENTS
Introduction....................................................................................... 1
The Basic Liquid Chromatograph..................................................... 2
The Gradient Programmer and the LC Pump ............................... 4
The Gradient Programmer ........................................................ 4
The LC Pump................................................................................ 6
The Pneumatic Pump ................................................................ 7
Non-Return Valves ................................................................... 8
The Syringe Pump .................................................................... 9
The Single Piston Reciprocating Pump ...................................... 11
The Rapid Refill Pump ........................................................... 12
The Twin-Headed Pump. ........................................................ 13
The Diaphragm Pump............................................................. 15
The Sample Valve....................................................................... 16
Column Switching .................................................................. 19
Column Ovens ................................................................................ 20
Detectors ......................................................................................... 21
The UV Detector......................................................................... 21
The Fixed Wavelength Detector ................................................. 23
The Multi-Wavelength Detectors ............................................... 25
The Multi-Wavelength Dispersive Detector........................... 26
The Diode Array Detector .......................................................... 27
The Electrical Conductivity Detector ............................................. 29
The Fluorescence Detector ............................................................. 32
The Refractive Index Detector........................................................ 34
The Tridet Multi Functional Detector............................................. 36
Liquid Chromatography Stationary Phases .................................... 41
Silica Gel..................................................................................... 41
The Preparation of Spherical Silica Gel ................................. 43
The Structure of Silica Gel ..................................................... 44
The Thermogravimetric Analysis of Silica Gel...................... 47
Bonded Phases ............................................................................ 49
The Synthesis of Bonded Phases ............................................ 49
Bonded Phase Synthesis by Reaction in a Solvent................. 50
The Fluidized Bed Method for Bonded Phase Synthesis ....... 53
Choosing a Bonded Phase........................................................... 56
Types of Bonded Phase............................................................... 57
Oligomeric Phases .................................................................. 58
Bulk Phases............................................................................. 59
Interactions Between 'Brush' and 'Bulk' Reverse Phases and
Aqueous Solvents ................................................................... 60
The Retention Properties of Bulk and Brush Phases...................... 63
Macroporous Polymers ................................................................... 66
LC Mobile Phases ........................................................................... 68
Solvent/Solute Interactions with the Silica Gel Surface............. 69
Solute Stationary Phase Interactions ...................................... 71
Solvent/Solute Interactions with the Reversed Phase Surface ... 74
Molecular Interactions in the Mobile Phase ............................... 76
Aqueous Solvent Mixtures.......................................................... 78
Macrocyclic Glycopeptide Phases .............................................. 82
Cyclodextrin................................................................................ 89
Liquid Chromatography Applications ............................................ 93
References..................................................................................... 101详细>