General Recommendation To Lowest Carry-Over - Agilent Technologies InfinityLab LC Series User Manual

General Recommendation to Lowest Carry-Over

For samples where the outside of the needle cannot be cleaned sufficiently
with the wash port use wash vials with an appropriate and stronger solvent.
An injector program and an additional wash vial can be used for cleaning.
In case the needle seat has got contaminated and carry-over is significantly
higher than expected, the following procedure can be used to clean the needle
seat:
• In Lab Advisor go to Maintenance > Change Needle: this will set the needle
• Remove the safety cover of the sampler. Be carefully not to risk an injury by
• Pipette an appropriate solvent on to the needle seat. The solvent should be
• Clean the needle seat with a tissue and remove all liquid. Again be careful
• Reinstall the safety cover of the sampler.
• In Lab Advisor, go to Maintenance > Change Needle and finish the procedure.
Agilent InfinityLab LC Series Vialsamplers User Manual
into home position.
the uncovered needle.
able to dissolve the contamination. If the contamination is unknown use 2
or 3 solvents of different polarity. Use several milliliters to clean the seat.
not to risk an injury by the uncovered needle.
Optimizing Performance
Optimization for Lowest Carry-over
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