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Analytics Shop offers a good selection of  liners by SGE, Agilent Technologies and Vici Valco. The GC inlet liner is where the sample is introduced and vaporized into the gaseous phase. The design of the liner is crucial, choosing the right inlet liner and injection parameter can increase peak areas and reduce detection limits by up to 300%. Also liner deactivation is relevant, to ensure reproducible and accurate chromatography.

If you have any quetios while choosing GC liners and other GC supplies our independent experts team provides you with a professional advice.

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Liner

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  1. Agilent Technologies

    Liner, 4mm id, splitless, single taper, inert

    Regular Price: $43.55

    Special Price $41.37

    sku: AG5181-3316
  2. Agilent Technologies

    Liner, split, single taper, glass wool, deactivated, low pressure drop

    Regular Price: $57.65

    Special Price $54.77

    sku: AG5183-4647
  3. SGE

    LINER AG 4mm ID QW 5/PAK

    Regular Price: $134.51

    Special Price $127.78

    sku: SG092001
  4. SGE

    LINER AG 4mm ID FOCUS 5/PAK

    Regular Price: $176.78

    Special Price $167.94

    sku: SG092002
  5. SGE

    LINER AG 4mm ID TAPER 5/PAK

    Regular Price: $170.37

    Special Price $161.85

    sku: SG092017
  6. SGE

    LINER AG 4mm ID TAPER QW 5/PAK

    Regular Price: $169.09

    Special Price $160.64

    sku: SG092019
  7. SGE

    LINER AG 4mm ID TAPFOCUS 25/PAK

    Regular Price: $972.28

    Special Price $923.67

    sku: SG092011
  8. SGE

    LINER VA78 3.4MM FOCUS 5/PAK

    Regular Price: $329.22

    Special Price $312.76

    sku: SG092037
  9. SGE

    LINER SH2010 3.4MM ID TAP FOCUS 25/PAK

    Regular Price: $1,233.60

    Special Price $1,171.92

    sku: SG09205825
  10. SGE

    LINER SH17A 3.4mm ID FOC 5/PAK

    Regular Price: $204.96

    Special Price $194.71

    sku: SG092062
  11. SGE

    LINER SH17A 3.4mmID TAPFOCUS 25/PAK

    Regular Price: $1,233.60

    Special Price $1,171.92

    sku: SG09206825
  12. SGE

    LINER SH2010 3.4MM ID GN 5/PAK

    Regular Price: $156.28

    Special Price $148.47

    sku: SG092077
  13. SGE

    LINER SHI17A 0.75MM ID 5/PAK

    Regular Price: $163.97

    Special Price $155.77

    sku: SG092089
  14. SGE

    LINER PE 4mm ID FOCUS 5/PAK

    Regular Price: $248.51

    Special Price $236.08

    sku: SG092092
  15. SGE

    LINER PE 4mm ID FOCUS

    Regular Price: $62.77

    Special Price $59.63

    sku: SG09209201
  16. SGE

    LINER PE 4MM ID FOCUS 25/PAK

    Regular Price: $1,055.54

    Special Price $1,002.76

    sku: SG09209225
  17. SGE

    LINER PE 4mm ID TAPFOCUS 5/PAK

    Regular Price: $289.51

    Special Price $275.03

    sku: SG092095
  18. SGE

    LINER PE 4mm ID TAPFOCUS

    Regular Price: $73.02

    Special Price $69.37

    sku: SG09209501
  19. SGE

    LINER TQ(CE) 3mm ID TAPER 5/PAK

    Regular Price: $275.42

    Special Price $261.65

    sku: SG092141
  20. SGE

    LINER TQ(CE) TRACE 2MM 5/PAK

    Regular Price: $324.09

    Special Price $307.89

    sku: SG092142
  21. Agilent Technologies

    Liner, UI 2mm dimpled splitless

    Regular Price: $74.30

    Special Price $70.59

    sku: AG5190-2297
  22. Agilent Technologies

    Liner, split, with cup, no glasswool

    Regular Price: $65.33

    Special Price $62.06

    sku: AG18740-80190
  23. Agilent Technologies

    Agilent liner, direct, 1,5 mm id, for gas samples, headspace, purge & trap

    Regular Price: $30.74

    Special Price $29.20

    sku: AG18740-80200
  24. Agilent Technologies

    Liner,direct,2mm id, non-deactivated

    Regular Price: $42.27

    Special Price $40.16

    sku: AG18740-80220
  25. Agilent Technologies

    Agilent liner, split, straight, with glass wool

    Regular Price: $33.31

    Special Price $31.64

    sku: AG19251-60540
  26. Agilent Technologies

    Liner, splitless,single-taper,glas wool,deactivated

    Regular Price: $46.12

    Special Price $43.81

    sku: AG5062-3587
  27. Agilent Technologies

    Liner, diret, 2mm id, deactivated

    Regular Price: $39.71

    Special Price $37.72

    sku: AG5181-8818
  28. Agilent Technologies

    Liner, split,straight,glasswool,non-deact

    Regular Price: $119.13

    Special Price $113.17

    sku: AG5183-4691
  29. Agilent Technologies

    Liner, splitless,tapr,glswool deactivated

    Regular Price: $174.22

    Special Price $165.51

    sku: AG5183-4693
  30. Agilent Technologies

    Liner, split, with cup,no glasswool 25 pcs.

    Regular Price: $1,068.35

    Special Price $1,014.93

    sku: AG5183-4700
  31. Agilent Technologies

    Liner, split,Low Pressdrop,Tpr,Glswl,Deac

    Regular Price: $216.49

    Special Price $205.67

    sku: AG5183-4701
  32. Agilent Technologies

    Liner, UI, splitless,single taper,GW, 5 pcs.

    Regular Price: $188.31

    Special Price $178.89

    sku: AG5190-3163
  33. Agilent Technologies

    Liner,for Shimadzu, 3,4mm id, split/splitless, single taper, 5 pcs.

    Regular Price: $206.24

    Special Price $195.93

    sku: AG8001-0104
  34. Agilent Technologies

    Liner,UI split frit goosnck 4mm 5 pcs. V-B

    Regular Price: $293.35

    Special Price $278.68

    sku: AG8004-0158
  35. Agilent Technologies

    Liner, direct, 2mm I.D., deactivated 5 pcs.

    Regular Price: $149.88

    Special Price $142.39

    sku: AG5183-4703
  36. Agilent Technologies

    Liner,direct,1.5mm id,non-deactivated 5 pcs.

    Regular Price: $117.85

    Special Price $111.96

    sku: AG5183-4709
  37. Agilent Technologies

    Liner, UI, splitless,single taper,GW,25 pcs.

    Regular Price: $814.72

    Special Price $773.98

    sku: AG5190-3167
  38. SGE

    LINER AG 4mm ID TAPFOCUS 5/PAK

    Regular Price: $229.30

    Special Price $217.84

    sku: SG092003
  39. SGE

    LINER AG 1.2mm ID Straight 5/PAK

    Regular Price: $121.70

    Special Price $115.62

    sku: SG092016
  40. SGE

    LINER SH17A 3.4mm ID FOC 25/PAK

    Regular Price: $872.36

    Special Price $828.74

    sku: SG09206225
  41. SGE

    LINER SH17A/2010 SINGLE TAPER 5/PAK

    Regular Price: $321.53

    Special Price $305.45

    sku: SG092071
  42. SGE

    LINER SH17A 2.6mm ID 5/PAK

    Regular Price: $93.51

    Special Price $88.83

    sku: SG0920861
  43. SGE

    PEND_LINER AG 4MM ID TAPER QW TI PK 5

    Regular Price: $208.80

    Special Price $198.36

    sku: SG09262019
  44. SGE

    Ferrule - SHIM17A LINER 10/PAK

    Regular Price: $90.95

    Special Price $86.40

    sku: SG0726007
  45. SGE

    LINER AG 4mm ID QW

    Regular Price: $34.59

    Special Price $32.86

    sku: SG09200101
  46. SGE

    LINER AG 4mm ID FOCUS

    Regular Price: $44.84

    Special Price $42.60

    sku: SG09200201
  47. SGE

    LINER AG 4mm ID TAPFOCUS

    Regular Price: $57.65

    Special Price $54.77

    sku: SG09200301
  48. SGE

    LINER AG QTZ 2mm ID Straight 5/PAK

    Regular Price: $195.99

    Special Price $186.19

    sku: SG092004
  49. SGE

    LINER AG QTZ 2mm ID Straight

    Regular Price: $49.96

    Special Price $47.46

    sku: SG09200401
  50. SGE

    LINER AG 2.3mm ID FOCUS 5/PAK

    Regular Price: $208.80

    Special Price $198.36

    sku: SG092005
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Liner for your GC system

Liner represent an indispensable element for a proper functioning of the GC system. They allow an injected liquid sample the transition to the volatile phase and then into the GC column. The elevated temperature in the inlet vaporizes the liquid sample for transfer to the head of the GC column. The result is a significant change in the volume during the phase transition - the volume of the resulting vapor has to remain within the volume of the liner. If the expansion volume is too large, the sample can be lost, resulting in a poor reproducibility and sensitivity and this may lead to carryover the entire GC system.

Selection of a suitable GC liner

The selection of a suitable liner for your GC system is, however, often not very simple but very important. The key aspects you should consider are the following:

  • Liner ID and geometry
  • Type of injection
  • Packing materials of the liner
  • Treatment or deactivation of the liner

1. Liner ID and geometry

Different liner IDs are indicators of varying volumes. A number of factors affect or reduce the effective volume of a liner, for example:

  • taper, baffles and other liner features
  • packing materials
  • carrier gas

In general the vapor cloud formed by the sample should not exceed half of the total volume of the liner. The expansion volume of solvents limits the injection volume. Solvents with low density and high molecular weight are desirable - this increases the volume of the solvent which can decrease the injected and detection limits.

2. Type of injection

Another key aspect in the selection of a suitable liner is the type of injection. Split liner allow the split flow over the bottom of the liner and causes a removal of a portion of the sample. This allows the implementation of a split injection. A selection of split liner you can find here.

Splitless Liners are usually tapered at the bottom. This helps to convey the sample to the column and minimizes sample contact with reactive metal components in the inlet during injection.

3. Packing material of the liner

The active sites of Inlet liners can adsorb sample components and cause peak tailing. This can lead to a loss of sensitivity and reproducibility. Active sites may also cause deterioration in certain classes of compounds.

4. Deactivation / treatment of the liner

In the Analytics-Shop users can choose from a wide range of liners from numerous manufacturers. These high quality liners offer a significantly improved inertness for a wide range of compounds. With various deactivation processes they often provide enhanced transferring the sample to the GC column, resulting in increased accuracy and precision in the analysis itself. This allows lower detection limits for some agents.

In our offer you will find a wide range of high quality liners and any other accessories for the (gas) chromatography. Questions about our products? Our expert team will be happy to advise you.

Regular replacement of the liner

When the liners are not exchanged in regular intervals, this can lead to huge problems. Firstly, a used liner cannot guarantee consistent reproducibility, which could affect the entire GC system. Furthermore, the liner should be replaced from time to time in order to avoid degradation of the peak shape and sample disintegration. So-called "ghost peaks" can also be a result of liners that haven't been exchanged in too long.

Restek Sky Inlet Liners

Sky Inlet Liners increase accuracy and reproducibility with state-of-the-art deactivation. These liners achieve lower detection limits for a wide range of active compounds. The innovative deactivation used for Sky liners leads to exceptional inertness for a wide range of analyte chemistries. By reducing active sites and enhancing analyte transfer to the column, these liners increase accuracy and precision, allowing lower detection limits for many active compounds. Also fewer liner changes are needed and less downtime for maintenance.