Introduction to the Agilent 7100 Capillary Electrophoresis System

8 Maintenance
Overview of Maintenance
Table 25
Overview of maintenance
Procedure Typical frequency Notes
Repair of replenishment
needle
• Use the Clean Level Sensor task to remove salt
deposits inside the tubing system.
• Keep a water-filled parking vial in carousel
position 49.
• Occasionally replace the parking vial in position
49 with water or buffer.
• Inspect for bending if clogged.
• Remove persistent clogging by a syringe flush
with water/isopropanol or use ultrasonic
device.
Buffer reservoir • Inspect O-ring in cap for damage, remove salt
deposits.
• Do not use buffer reservoir for long-term
storage (prevents oxygen saturation and
bacteria from growing).
• Remove liquid from waste bottle.
Inlet frit • Inspect and clean (especially if absorbing
buffers have been used).
• Replace when dirty.
Vial caps • Do not overuse vial caps (especially the PEO
caps).
• Inspect for damage.
* The chosen frequency may be time-based, for example weekly or injection-based, for example 100 injections. It depends on
your individual application and needs. The time and injection-based EMF counter can be customized.
NOTE
Do not open the top cover or remove the cartridge without lowering the lifts. Use the
function maintenance position from the tools section of the Lab Advisor. Careless opening
may lead to floating of electrodes with buffer or sample which leads to contamination or
carry-over.
192 Agilent 7100 Capillary Electrophoresis System User Manual