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gc septa

GC Septa

Durable, low-bleed GC septa ideal for GC-MS and high-throughput analysis.

Bulk OEM supply available | Compatible with Agilent, Shimadzu, Thermo

  • gc septa
  • gc septa

Why Top Labs Trust Intellistone GC Septa

  • High-heat ready: Red PTFE/silicone runs long at up to 400 °C; green fluoroelastomer stays stable to 350 °C.
  • No leaks, clean baseline: Precision-moulded and plasma-cleaned to minimise carrier-gas loss and background.
  • Fits your GC: Agilent 7890/8890, Shimadzu GC-2030, Thermo TRACE, and our GC Septa is the most split/splitless inlets.
  • B2B logistics: MOQ 1 box, 10k+ in stock, global shipping in 7 days.

Upgrade Your GC Performance with Intellistone GC Septa Trusted by Global Labs

Our GC septa use PTFE-lined silicone (red) and fluoroelastomer FKM (green) for leak-tight, low-bleed sealing under demanding GC conditions. The red grade supports high-temperature runs up to 400 °C, and the green grade remains stable to 350 °C (temperature limits depend on inlet design and run time). Each septum typically endures 100+ injections with excellent resealability and no coring. Third-party compatible with most split/splitless inlets (e.g., Agilent 7890/8890, Shimadzu GC-2030, Thermo TRACE). OEM options include sizes, hardness, colours, and packaging; compliance files (ISO 9001, RoHS, USP <467>) are available on request

Product Options

Red Injection Port Spacer
Red Injection Port Spacer
Green Injection Port Spacer
Green Injection Port Spacer
Pipe Liner O-Ring
Pipe Liner O-Ring
Customizable Options

Custom sizes (e.g., 11 mm, 9 mm, etc.)

Material blends tailored to specific workflows

OEM logo printing and packaging services

Choose Your Material

PTFE / Silicone GC Septa
  • Material Type: PTFE / Silicone
  • Description: Dual-layer design, flexible and chemically inert.
  • Typical Temp Limit: ~300°C
  • Advantages: Good sealing, long life, low background interference.
  • Common Color: Red / Blue
PTFE / Butyl GC Septa
  • Material Type: PTFE / Butyl
  • Description: Butyl rubber core with PTFE coating.
  • Typical Temp Limit: ~250°C
  • Advantages: High gas tightness and lower cost.
  • Common Color: Grey
Fluoroelastomer GC Septa
  • Material Type: Fluoroelastomer
  • Description: High-performance elastomer for high-temperature and aggressive solvents.
  • Typical Temp Limit: ~350°C
  • Advantages: Excellent thermal stability, GC-MS friendly.
  • Common Color: Green
Thermogreen / LB-2 GC Septa
  • Material Type: Thermogreen / LB-2
  • Description: Proprietary low-bleed septa for ultra-trace GC/MS analysis.
  • Typical Temp Limit: >350°C
  • Advantages: Ultra-low background, minimal ghost peaks.
  • Common Color: Green

Why Intellistone GC Septa

High Temperature Resistance
High Temperature Resistance

Withstands extreme conditions: Red GC septa up to 400 °C, Green GC septa up to 350 °C.

Leak-Free Sealing
Leak-Free Sealing

Our GC Septas Prevents carrier gas loss and protects samples from contamination.

Durable & Needle Friendly
Durable & Needle Friendly

Designed to endure multiple punctures with minimal coring or particle shedding.

Broad Compatibility
Broad Compatibility

Our GC Septas Fit autosamplers and injection ports from Agilent, Shimadzu, Thermo Fisher, and more.

OEM & Customization Support
OEM & Customization Support

Custom diameters, materials, and private labeling available for distributors and labs.

After-sales Service
After-sales Service

We offer after-sales support and technical assistance for 24h

Why Choose Intellistone GC Septa

Our GC septa sample port seals combine exceptional thermal stability with reliable repeatable sealing performance, effectively preventing leaks and contamination to ensure accuracy and consistency with every injection.

Whether you’re conducting routine quality control analysis or tackling trace-level GC-MS testing, these septum rings made from high-purity silica gel/PTFE composite material or fluorinated rubber offer outstanding chemical resistance and extremely low background signals, effectively minimising interference.

Ideal for high-throughput laboratories and heat-sensitive environments, our gas chromatography septum rings are the perfect choice for laboratories seeking stability and data quality.

Why Choose Intellistone GC Septa
GC Septa Wholesale & OEM Solutions

GC Septa Wholesale & OEM Solutions

For distributors and labs, we offer straightforward wholesale terms, private-label packaging with full-colour print and SKU barcodes, on-demand compliance files (ISO 9001, RoHS, USP <467>), and hands-on support from application chemists for method transfer and liner–septa matching.

Are these GC septa compatible with all major gas chromatographs?

Yes, they are designed for universal compatibility with Agilent, Shimadzu, Thermo Fisher, and other leading GC systems.

Can you provide custom septa sizes or packaging?

Absolutely. We offer OEM and ODM customization for specific diameters, materials, and private branding.

How often should GC septa be replaced?

To prevent leaks and ghost peaks, we recommend regular inspection and replacing septa according to usage intensity and temperature.

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