GCMS
Default GCMS Configuration:
SPL-GCMS
- Always order 0.25mm I.D. column.
- Avoid using twin line.
- Dual monitors is highly recommended, triple is not bad, but I think most of user cannot master them.
- Consumable:
- Aluminum Oxide, SZ-220-94606-00, 4 Oz.
- Abrasive paper
Interesting Options:
- AFT: either detector splitting or detector switching system. Add a GC detector to work with MS at the same time.
- For option to remove column without vent:
- Restek 22431 for regular fused silica column
- Frontier Lab Vent-Free GCMS adapter for metal column.
Hydrogen as carrier gas:
- Hydrogen sensor is highly recommended. It can detect hydrogen leaking inside GC oven.
- Hydrogen can be vent into room by these paths, connect those to fume hood to get rid of H2.
- septum purge
- split vent.
- rough pump exhaust.
- Hydrogen may saturate pi bond for VOC.
- Hydrogen may split SVOC internal standard peak.
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