How to Trim a Capillary GC Column Correctly | GC Column Clipping & Installation
How to correctly trim or clip a capillary GC column before installation.
In this hands-on video, I demonstrate how I prepare and cut the end of a capillary GC column to create a clean, square column end before installing it into the GC inlet.
Topics covered:
• Inspecting the column end
• Using a ceramic scoring wafer / column cutter
• Making a clean square cut
• Avoiding crushed or angled column ends
• Checking the cut before installation
• Installing the trimmed column into the inlet
A poor column cut can contribute to leaks, poor peak shape, unstable flow, and other chromatographic problems.
Proper column trimming is a small step, but it can make a big difference in GC performance.
Vineta Mills Consulting
Practical GC and GC/MS maintenance, troubleshooting, chromatography, method development, and laboratory training.
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