Back to website OPTIC, LINEX, PHASER Help Desk
Knowledgebase

Hello, how can we help?

Suggested knowledgebase articles:

Knowledgebase

OPTIC
Pyrolysis with OPTIC
LINEX
PHASER
  • Top articles
  • Latest articles
Can I do On-Column with OPTIC?

Category: OPTIC

The OPTIC inlet can also be used for on-column injections. GL Sciences has designed a tool that enables true on-column injection using OPTIC inlet without an on-column liner. The on-column tool is ver...

Siloxane peaks in baseline GCMS

Category: OPTIC

GC-MS Siloxane Peak Contamination (masses 73, 147, 207, 281, 355) Running a baseline chromatogram done without sample or solvent injection should show a nice chromatogram without peaks, but sometimes ...

How should I condition a TD tube?

Category: LINEX

Before TD tubes can be used the desorption tubes must be conditioned. Conditioning involves the continuous flow of a high purity carrier gas (either Nitrogen or Helium) while the desorption tubes are ...

How can I optimize my Large Volume Injection (LVI) ?

Category: OPTIC

We recommend you to read the training guide first. Optimization Routine For Large Volume Injection This LVI routine is based on OPTIC and fast (not speed controlled) injections. A packed liner (sinter...

How often do I need to replace the Split Line Filter?

Category: OPTIC

The OPTIC-3 and OPTIC-4 Multi Mode Inlet for Gas Chromatography have a filter in the Split liner to protect the Electronic Gas Control. This filter needs to be replaced minimum once per year, but if y...

Is there a Fractionation collection adaptor available for the PHASER?

Category: PHASER

Yes, we do have such adaptor. 2702-GL0033 PHASER Fraction Collection Attachment Assembly, for tube with 5 mm OD2702-GL0037 PHASER Fraction Collection Attachment Assembly, for tube with 1/4-inch OD

Can a Liquid Nitrogen Withdrawal Device be used with the CryoTrap?

Category: OPTIC

No, a Liquid Nitrogen Withdrawal Device doesn't work with the cryotrap. The pressure is too low to get a good working solution. Please use a Dewar like: What Dewar is needed for the CryoTrap when usi...

Cryo CO2 connection on the bottle with dip pipe.

Category: OPTIC

When CO2 cooling is wanted for the CryoTrap or Inlet cooling, it is needed to have a CO2 bottle with dip pipe. The connection on the bottle is without pressure regulator. There should be a direct outl...

Can Nitrogen gas be used with pyrolysis

Category: Pyrolysis with OPTIC

Nitrogen can also be used with the OPTIC inlet and GC-MS for pyrolysis.   Empirically, we found that there is a big impact of the external heat transfer on the pyrolysis inside the OPTIC inlet. Since ...

Nitrogen as carrier gas for pyrolysis

Category: Knowledgebase

Nitrogen can also be used with the OPTIC inlet and GC-MS for pyrolysis.   Empirically, we found that there is a big impact of the external heat transfer on the pyrolysis inside the OPTIC inlet. Since ...