Solvent Degassing - Waters 2410 Operator's Manual

Table 4-1 Refractive Indices of Common Solvents (Continued)
Solvent
1-Pentene
Acetic acid
Isopropyl chloride
Isopropanol
n-Propanol
Methylethylketone
Diethyl amine
n-Propyl chloride
Methylisobutylketone
Nitromethane
1-Nitropropane
Isooctane
Cyclopentane
4

4.3 Solvent Degassing

Using degassed solvents is the most important step in solvent preparation. Degassing
provides:
• Stable baselines and enhanced sensitivity
• Reproducible retention times
• Stable pump or solvent delivery system operation
This section presents information on the solubility of gases, solvent degassing methods,
and solvent degassing considerations.
63 Preparing Solvents
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RI Solvent
1.371 Ethyl sulfide
1.372 Chloroform
1.378 Ethylene dichloride
1.38 Carbon tetrachloride
1.38 Dimethyl sulfoxide (DMSO)
1.381 Toluene
1.387 Xylene
1.389 Benzene
1.394 Pyridine
1.394 Chlorobenzene
1.400 o-Chlorophenol
1.404 Aniline
1.406 Carbon disulfide
RI
1.442
1.443
1.445
1.466
1.477
1.496
~1.50
1.501
1.510
1.525
1.547
1.586
1.626