| Injector Liner | |
Split universal Liner concentrated samples dirty samples |
the addition of quartz wool to the inlet liner promotes mixing of analytes, aids the vaporization of liquid samples, works as a trap to collect non-volatile residue in the sample (i.e. protects capillary column from 'dirty' samples). the two tapered sections in the liner ensure that the quartz wool remains fixed in the ideal position the tapered section at the top prevents the quartz wool to move towards the septum while the taper at the bottom prevents the quartz wool to be pushed down by the syringe needle this insures an excellent reproducibility of your analysis |
 
FocusLiner™ Split/Splitless trace level analysis dirty sample Wide boiling point range |
advantages of FocusLiner™ see above Bottom taper focuses sample onto the head of the column and minimizes contact with metal parts of the inlet especially important in splitless injection as the sample remains longer in the liner |
Splitless trace level analysis active compounds |
Quartz wool provides additional surface area for complete volatilization of the sample to minimize sample discrimination. Quartz wool wipes any sample from the syringe needle, thereby increasing reproducibility and preventing sample residue build-up at the septum Quartz wool traps non-volatile components and septum particles from reaching the column A bottom taper focuses sample onto the head of the column and minimizes sample contact with metal parts of the inlet |
 
ConnectTite™ Liner Splitless trace level analysis active compounds |
ConnectTite™liners facilitate maximum transfer of sample to GC column and inhibit sample degradation due to hot metal components inside inlet systems equipped with electronic pressure control require a hole in the liner body to maintain system gas flows ConnectTite™liners that have a hole near the bottom are best suited to analyses where a tailing solvent peak could affect early eluting compounds. ConnecTite™ liners with a hole at the top of the liner will improve your analysis with aqueous injections or where compounds of interest elute away from the solvent peak.
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injector Liner Split/Splitless universal Liner gaseous samples |
straight liners facilitate higher split flows narrow bore straight liners facilitate fast GC work small injection volumes of less than 0.5 μL are best used with a narrow bore Narrow bore straight liners improve focussing of gaseous samples (purge, trap and headspace) |
 
injector Liner Splitless LVI trace level analysis low boiling point compounds active compounds |
the bottom taper minimizes contact with metal parts of the inlet and focuses sample onto the head of the column top taper aids in minimizing sample flashback |
 
injector Liner PTV LVI trace level analysis large volume injections |
PTV and LVI liners generally have sintered glass beads or powder to increase the surface area and trap nonvolatile residue PTV liners use baff es or a wisp of quartz wool to aid in vaporization of samples and retain droplets during low temperature injections Side hole needles are recommended for these techniques to ensure effective distribution of sample within the liner |
| GC Supplies |
| GC Capillary Columns |
| GC Syringes |
| GC Septa |
| Ferrules |
| Injector Liner |
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