Agilent InfinityLab LC Series Vialsamplers User Manual 141
4 Preparing the Module  
Preparing the Module
Preparing the Module
For best performance of the module
• When using the module in a system with a vacuum degassing unit, shortly 
degas your samples before using them in the module.
• Filter samples before use in a 1200 Infinity Series system. Use High pressure 
filter kit (5067-4638) for inline filtering.
• When using buffer solutions, flush the system with water before switching it 
off.
• Check the module plungers for scratches, grooves and dents when changing 
the piston seal. Damaged plungers cause micro leaks and will decrease the 
lifetime of the seal.
• Solvent Information - Observe recommendations on the use of solvents, see 
“Solvent Information” on page 142.
• Priming and Purging the System - When the solvents have been exchanged or 
the system has been turned off for a certain time (for example, overnight) 
oxygen will re-diffuse into the solvent channel. Therefore priming and purging 
of the system is required before starting an application.
Table 13 Choice of Priming Solvents for Different Purposes 
Activity Solvent Comments
After an installation Isopropanol Best solvent to flush air out of 
the system
When switching between 
reverse phase and normal 
phase (both times)
Isopropanol Best solvent to flush air out of 
the system
After an installation Ethanol or methanol Alternative to isopropanol (sec-
ond choice) if no isopropanol is 
available
To clean the system when 
using buffers
Bidistilled water Best solvent to re-dissolve buf-
fer crystals
After a solvent change Bidistilled water Best solvent to re-dissolve buf-
fer crystals