Agilent InfinityLab LC Series RID User Manual
65
4
Preparing the Module
Setting up an Analysis
Before Using the System
Solvent Information
Observe recommendations on the use of solvents in chapter “Solvents” in the
pump’s reference manual.
Priming and Purging the System
When the solvents have been exchanged or the pumping system has been turned
off for a certain time (for example, overnight) oxygen will re-diffuse into the
solvent channel between the solvent reservoir, vacuum degasser (when available
in the system) and the pump. Solvents containing volatile ingredients will slightly
lose these. Therefore priming of the pumping system is required before starting
an application.
Table 5
Choice of Priming Solvents for Different Purposes
Activity
Solvent
Comments
After an installation
When switching between reverse
phase and normal phase (both times)
Isopropanol
Isopropanol
Best solvent to flush air out of the sys-
tem
Best solvent to flush air out of the sys-
tem
After an installation
Ethanol or Methanol
Alternative to Isopropanol (second
choice) if no Isopropanol is available
To clean the system when using buf-
fers
After a solvent change
Bidistilled water
Bidistilled water
Best solvent to re-dissolve buffer crys-
tals
Best solvent to re-dissolve buffer crys-
tals
After the installation of normal phase
seals (P/N 0905-1420)
5% Isopropanol
Good wetting properties
NOTE
The pump should never be used for priming empty tubings (never let the pump
run dry). Use a syringe to draw enough solvent for completely filling the tubings
to the pump inlet before continuing to prime with the pump.