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Chromatography Septa

Chromatography Septa

Components on top of the injection port of GC systems that provide a leak-free seal between the atmosphere and carrier gas and minimize the introduction of contaminants; allow repeated sample injection without significant coring or leaking.
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1

Thermo Scientific™ Septa

Use low bleed, robust BTO Septa for demanding GC-MS applications.

EDGE
For Use With (Equipment) Trace and Focus GC Instruments
Material Silicone
2

Thermo Scientific™ Septa

A wide range to cover most applications

3

MilliporeSigma™ Supelco™ Molded Thermogreen LB-2 Septa, Solid Discs

Molded Septa are manufactured from high quality, low bleed material that uses the same exclusive LB-2 rubber formulation chromatographers are accustomed to using.

EDGE
Design Solid Disc
Type Septa
For Use With (Equipment) Low Bleed GC-MS Columns
Temperature (Metric) Max 350°C
Material LB-2 Rubber
For Use With (Application) Manual Injections
4

Restek™ BTO™ Septa: With CenterGuide
SDP

Plasma coating eliminates sticking in the injection port

Design Centerguide
Type Septa
Temperature (English) Max. 752°F
Temperature (Metric) Max 400°C
Coating Plasma
For Use With (Application) GC and GC/MS AppliCatIons
5

Restek™ BTO™ Septa: Shimadzu Plug
SDP

Plasma coating eliminates sticking in the injection port

Design Centerguide
Type Shimadzu Plug Septum
Temperature (English) Max. 752°F
Temperature (Metric) Max 400°C
Coating Plasma
For Use With (Application) GC and GC/MS AppliCatIons
6

MilliporeSigma™ Supelco™ Three Layer Disc Septa

Feature a soft inner layer of silicone rubber sandwiched between hard outside layers

Type Disc Septum
Temperature (Metric) Max 200°C
Quantity 12 Pk.
No. of Layers 3
Liner Material Silicone Rubber
For Use With (Application) Gas Chromatography
7

MilliporeSigma™ Supelco™ Molded Thermogreen™ LB-2 Septa with Injection Hole

Molded Septa are manufactured from high quality, low bleed material that uses the same exclusive LB-2 rubber formulation chromatographers are accustomed to using.

Design With Injection Hole
Type Septa
For Use With (Equipment) Low Bleed GC-MS Columns
Temperature (Metric) Max 350°C
Material LB-2 Rubber
8

MilliporeSigma™ Supelco™ GR-2 Septa

Designed for routine, isothermal use

Temperature (Metric) Max 200°C
Color Gray
Material Silicone Rubber
For Use With (Application) Routine, Isothermal Use
9

Thermo Scientific™ Marathon 9mm I.D. Septa in Glass Jar

Use low bleed, robust BTO Septa for demanding GC-MS applications.

10

Thermo Scientific™ Marathon 11mm I.D. Septa in Glass Jar

Use low bleed, robust BTO Septa for demanding GC-MS applications.

11

MilliporeSigma™ Supelco™ SS-174 PTFE-Faced Septa

Suitable to overcome the degradation of the septa, due to prolonged high temperatures which occurs in silicone rubber septa

Type SS-174 Septa
Thickness (English) 123 mil
Temperature (Metric) Max 300°C
Material Silicone
Liner Material PTFE Face
13

Merlin Microseal™ System, Sold by MilliporeSigma™ Supelco™

Includes 1 Nut and 2 Low Pressure (1-45 psi) Septa, Fits Agilent GCs.

15

Restek™ Thermolite Plus Septa
SDP

Ultra-low bleed minimizes background signal

Type Thermolite Plus Septa
Temperature (Metric) Max 350°C
For Use With (Application) Chromatography