Waters 2998 - Page 10

x Table of Contents
Caution symbol .................................................................................................. A-5
Warnings that apply to all Waters instruments ......................................... A-6
Electrical and handling symbols ................................................................. A-12
Electrical symbols .......................................................................................... A-12
Handling symbols .......................................................................................... A-13
B Specifications ........................................................................................ B-1
C Solvent Considerations ....................................................................... C-1
Introduction ...................................................................................................... C-2
Clean solvents .................................................................................................. C-2
Solvent quality ................................................................................................. C-2
Preparation checklist....................................................................................... C-2
Water ................................................................................................................ C-2
Using buffers.................................................................................................... C-2
Tetrahydrofuran .............................................................................................. C-3
Solvent miscibility ........................................................................................... C-3
How to use miscibility numbers...................................................................... C-5
Buffered solvents ............................................................................................. C-6
Head height ....................................................................................................... C-6
Minimum tubing bend radius recommendations ..................................... C-6
Solvent viscosity ............................................................................................... C-7
Mobile phase solvent degassing ................................................................... C-7
Gas solubility ................................................................................................... C-7
Solvent degassing methods ............................................................................ C-8
Sparging ........................................................................................................... C-9
Vacuum degassing ........................................................................................... C-9
Solvent degassing considerations ................................................................... C-9
Wavelength selection .................................................................................... C-10
UV cutoffs for common solvents.................................................................... C-10
Mixed mobile phases...................................................................................... C-12