Septa for Agilent Instruments
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Septa for Agilent Instruments
Septa are available for a variety of different applications and have different upper temperature limits. Lower temperature septa are usually softer, seal better, and can withstand more punctures (injections) than their high-temperature counterparts. If septa are used above their recommended temperatures, they can leak or decompose, causing sample loss, lower column flow, decreased column life, and ghosting.
Agilent premium non-stick inlet septa are designed and manufactured to provide a reliable non contaminating seal. The tri-fold blister pack ensures that each septum remains clean and ready to use.
- Proprietary plasma treatment prevents sticking and unnecessary inlet cleaning
- Innovative blister packaging keeps each septum clean and ready for use
- Center point guides the needle for easy penetration, less coring and longer life
- Precision molding assures accurate fit in the inlet
- Each batch is tested for bleed on Agilent 7890 GC-FID
- Premium formulations selected for sealing and chromatographic cleanliness
- No need to bake septa before using
There are three types of Agilent premium septa from which to choose to suit all GC application types:
- Bleed and Temperature Optimized (BTO) - Suitable up to 400°C and recommended for trace analysis
- Advanced Green - Recommended up to 350°C and good general purpose septum
- Long Life - Recommended for use with injection port temperatures below 350°C
Agilent's general purpose septa are made from an enhanced injection-molded silicone rubber. The septa material, gray in color, is specified to withstand over 200 automatic injections at an injection port temperature of 350 °C.
Features
Non-Stick Bleed and Temperature optimized (BTO) Septa
- Extended temperature range, lowest bleed
- Maximum injection port temperature 400°C
- Plasma treatment eliminates sticking in the injection port
- Pre-conditioned; ready to use
- Blister packaging for cleanliness and convenience
- Ideal for use with low-bleed, "Mass Spec" capillary columns
Non-Stick Advanced Green Septa
- True long-life, high temperature green septa
- More injections per septum
- Plasma treatment eliminates sticking in the injection port
- Maximum injection port temperature 350°C
- High-performance alternative to competitors' "green" septa
- Blister packaging for cleanliness and convenience
Non-Stick Long-Life Septa
- The preferred septa for autosamplers
- Pre-pierced for extended life and reduced coring
- Ideal for overnight runs
- Up to 400 injections per septum
- Plasma treatment eliminates sticking
- Maximum injection port temperature 350°C
- Soft, 45 durometer, easy on autosampler needles
- Blister packaging for cleanliness and convenience
General Purpose Septa
- Low bleed for reduced and increased productivity
- Ability to withstand more than 200 injections at elevated injection port temperatures
- Easy penetration yet resistant to coring and leaking from multiple injections
- Blister packaging for cleanliness and convenience
Specifications
Summary of Premium Inlet Septum Characteristics
| Septum Type | Bleed | Lifetime | Temperature Limits |
| Non-Stick BTO (Bleed and Temperature Optimized) | ✔✔✔ | ✔ | to 400°C injection port temp |
| Non-Stick Advanced Green | ✔✔ | ✔✔ | to 350°C |
| Non-Stick Long-Life | ✔ | ✔✔✔ | to 350°C |
✔✔✔ = Best
✔✔ = Very good
✔ = good
Literature
Better connections, better results with your Agilent GC system
Consumable items for Thermo Scientific GC systems
Consumable items for GC from Agilent
Agilent Premium Septa for ContaminantFree Inlet and Reduced Bleed