Instruction manual

54 1100 Series Capillary LC System Manual
3 Capillaries and Fittings
Hints for Successful use of Capillaries and Fittings
• Never overtighten a fitting.
• Never cut a capillary
• Take care when you bend a capillary (diameter never below 40 mm).
• Avoid the use of alkaline solutions (pH > 8.5) which can attack the fused
silica from the capillaries.
• When connecting, press the capillary smoothly into the fitting to avoid air
gaps.
• If a capillary leaks, never retighten it under flow.
• A blocked capillary can often be cleaned by flushing it back. Acetone is
recommended for this.
• Take care when applying module doors, not to crush capillaries.
• A broken capillary can release silica particles in the system.