Liners SGE Troubleshooting
Contents
1. Consumables GC Accessories Liner Troubleshooting Symptom Possible Cause Sample components adsorbed by column Tailing Peaks inlet liner or contaminated gold inlet seal Needle hitting and breaking packing in inlet liner Column end poorly cut sample absorption Normal Problam Broken or chipped inlet liner Baseline Rise Before or After Peak Lo se Le Problem Sample decomposing Normal Problem Baseline Change After Large Peak I IM Ul Normal Column and inlet liner mis aligned Problem Problem Unresolved Peaks j Column or inlet liner contaminated or i it column deteriorating a __ i J J Normal Problem Problem Tica o Please contact your local distributor Remedy Use new deactivated liner or clean old liner and replace glass wool Partially remove packing from liner or use without packing Remove column Make a clean square cut using a reliable capillary fused silica cutting tool such as a ceramic wafer or the Agilent Column Cutter then reinstall column Make sure total flow in inlet is above 40 mL min Remove inlet liner and check cleanliness Use new deactivated liner or replace glass wool and packing Column sample residues could also be the problem Check installation of column end and inlet See also Septum Troubleshooting liner adjust if necessary Use a guard column to prolong column life Remove inlet liner and check cleanl2. iness Use new deactivated liner or replace glass wool and packing Trim the front end of the column a minimum of 6 inches Liners How to minimize problems Change liners on a regular basis determined by Previous use pattern Sample cleanliness Chromatographic abnormalities such as Peak shape changes Peak discrimination Poor reproducibility Sample pyrolysis Active analyte response loss or decomposition
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