GC Liner Guide

In gas chromatography, the liner serves as a crucial component within the instrument, facilitating the transfer of the sample to the GC column for its subsequent separation and analysis. Choosing the appropriate liner significantly influences the efficiency and accuracy of your chromatographic process. The selection of the most suitable liner depends upon various factors, such as the nature of the sample and the specific injection technique required.

Navigating the various liner configurations can be challenging. Our comprehensive guide offers invaluable insights into the diverse range of liners available from SCION. This resource aims to empower you in selecting the ideal liner tailored to your unique needs.

GC Liner Selection Guide

Type	Dimensions (mm x mm OD x mm ID)	Part Number	Benefits
Straight	78.5 x 6.3 x 4.0 78.5 x 6.3 x 2.0 78.5 x 6.3 x 1.8 54.0 x 5.0 x 0.5	41312105 41312103 41312108 41312123	Split/Splitless PTV (54.0 mm length) General purpose liner Ideal for clean samples Varied concentration of samples Promotes higher split flows More suitable for packed columns Narrow bore (ID<= 2mm) improves focussing of gaseous samples (purge and trap or headspace) 4 mm ID for large sample volume
Straight Quartz Wool	78.5 x 6.3 x 4.0	41312100	Same benefits as Straight with additional – Helps in evaporation, mixing of analytes Traps non-volatile material Limits discrimination
Straight Quartz Wool Ultra Inert	78.5 x 6.3 x 4.0	41312114	Same benefits as Straight with additional – Removes possible active sites distributed within the liner’s interior Reduced surface activity Consistent sample vaporization
Focus	78.5 x 6.3 x 4.0 78.5 x 6.3 x 2.0	41312101 41312104	Split General purpose Dirty and concentrated samples Contains Quartz Wool and it is Ultra Inert Quartz wool remains in optimum positions due to the necks around Excellent reproducibility due to the wiping of the needle by the Quartz Wool Minimize discrimination Removes possible active sites distributed within the liner’s interior Reduced surface activity Consistent sample vaporization
Taper Focus	78.5 x 6.3 x 4.0	41312102	Split/Splitless The same benefits as Focus with additional – Top taper helps in mitigating sample flashback
Double Taper Focus	54.0 x 5.0 x 3.4	41312124	PTV The same benefits as Taper Focus with additional – Bottom taper directs the sample toward the head of the column Low boiling and active compounds
Taper Fast Focus	78.5 x 6.3 x 2.3	41312112	Same benefits as Taper Focus with additional – Narrow 2.3 mm ID for use with 0.1 mm ID capillary columns Culminates in smaller peak widths
Taper Focus Ultra	78.5 x 6.3 x 4.0	41312115	Split/Splitless Same benefits as Taper Focus with additional – Trace level analysis Minimize greatly contaminations due to the reduction of active sites during volatilization
Taper	78.5 x 6.3 x 4.0	41312109	Split/Splitless Active samples Trace level analysis Top taper helps in mitigating sample flashback Increase peak area
Taper Quartz Wool	78.5 x 6.3 x 4.0	41312111	Extra – Run dirty samples
Taper Quartz Wool Ultra Inert	78.5 x 6.3 x 4.0	41312117	Extra – Removes possible active sites distributed within the liner’s interior Reduced surface activity Consistent sample vaporization
DBL Taper	78.5 x 6.3 x 4.0	41312110	Splitless Low boiling point compounds Bottom taper minimizes contact with metal parts of the inlet and focuses sample onto the head of the column Top taper aids in minimizing flashback
Recessed Gooseneck	78.5 x 6.3 x 2.0	41312107	Splitless Trace analysis of active compounds Great recovery and linearity Less restriction – liner volume
Recessed Gooseneck Quartz Wool	78.5 x 6.3 x 4.0	41312106	Extra – Helps in evaporation, mixing of analytes Traps non-volatile material Limits discrimination
Cold On-Column (COC) Injector	R 0.25 54.0 x 4.6 x 0.5 R 0.25 54.0 x 4.6 x 0.8 R o.50 54.0 x 4.6 x 0.8	41312120 41312121 41312122	Direct injection Trace level analysis Aqueous samples Active compounds
S/SL Focus	54.0 x 5.0 x 3.4	41312125	Same benefits as Focus Optimized for S/SL injector
S/SL Taper	54.0 x 5.0 x 3.4 54.0 x 5.0 x 2.0	41312126 41312127	Same benefits as Taper Optimized for S/SL injector Narrow bore (ID <= 2 mm) - Trace level analysis
SPME straight	78.5 x 6.3 x 0.75 54.0 x 5.0 x 0.80	41312128 41312113	Splitless PTV (54.0 mm length) Optimized for the Solid Phase MicroExtraction (SPME) sample preparation technique