The compressibility of the mobile phase has an effect on the performance of the pump. For best flow accuracy and mixing performance, you can set the parameter according to the mobile phase being used.
For the G1310A/B isocratic pumps and G1311A/B/C quaternary pumps, the default compressibility value is 100 * 10-6. If the quaternary pump mixes solvents with large compressibility differences (e.g. water and methanol) we recommend that you use the default value.
For the G1312A/C binary pumps, the default value is 50 * 10-6 for channel A and 115 * 10-6 for channel B. Always set the compressibility value for both channels.
Limits: 40 through 150.
|
Acetone |
126 |
Acetonitrile | 115 |
Benzene | 95 |
Carbon tetrachloride |
110 |
Chloroform | 100 |
Cyclohexane | 118 |
Ethanol | 114 |
Ethyl acetate | 104 |
Heptane | 120 |
Hexane |
150 |
Isobutanol | 100 |
Isopropanol (2-Propanol) |
100 |
Methanol | 120 |
1-Propanol | 100 |
Toluene | 87 |
Water |
46 |