PTFE/silicone septa are always best. What force is required to penetrate the septum? Generally, silicone septa are more easily pierced than red rubber or butyl septa. For thicker, hard-to-pierce septa, a small gauge (23 gauge) needle may be required, or a stronger S-needle can be used. Preslit septa are the best option for

GC Septa Three Layer GC Septa Three Layer Septa is made of preconditioned silicone rubber and is 3.81 mm (0.150 in) thick. The average life of these septa is up to 100 injections with a 26s gauge needle. The maximum operating temperature is 200° C. High Temperature GC Septa

PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications where resealability and high purity are critical. PTFE/Silicone septa are offered in a standard formulation as well as a soft durometer formulation recommended for applications where ease of needle penetration is important PTFE/Silicone/PTFE Septa: (T/S/T)

Inlet Septa for Gas Chromatography Advanced Green inlet septa eliminate sticking and reduce coring. Bleed temperature optimized (BTO) inlet septa are preconditioned and ready to use with low-bleed, mass spec capillary columns. Our long-life septa are specially formed for extended use, meaning less downtime.

Jul 10, 2012 · GC–MS chromatograms obtained using Septum A at different IP temperatures. The other three septa (B, C and D) were also tested separately in a similar manner, and their respective chromatograms are compared with that of Septum A in Figures 4 A–4D at fixed injection port temperatures 100, 150, 200 and 250°C.

GC injection port septa Standard quality Septum grade: Standard septa (ST) Material: beige silicone Thickness: 4 mm Hardness: 60° shore A Septum grade: High temperature septa (HT) Material: red non-bleeding silicone Thickness: 3 mm Hardness: 60° shore A Compare this item Septa, Long Life GC Autosampler Hamilton and coring.

Aijiren's premium septa also have a recess on the injection side, to guide the syringe needle to the same point with every injection. Product Details Features The preferred septum for autosamplers Pre-pierced for extended life and reduced coring Ideal for overnight runs Up to 400 injections per septum Plasma coating eliminates sticking

Ensure optimal performance of your GC instrument with bleed and temperature optimized Aijiren Tech™ BTO and TR-Green Septa. Made of low-bleed silicone, these septa have excellent mechanical properties, are ideal for demanding GC-MS applications, and may be used reliably up to 400 °C. Product Overview Recommendations Documents

the solvent. PTFE/Silicone septa are ideal for use in most HPLC and GC applications where resealability and purity are critical. Pre-slit PTFE/silicone septa Pre-slit septa are offered in many of the same formulations as for non-slit PTFE/silicone septa and shares most of the physical and chemical characteristics.

2.0 mL, 9 mm Screw-Thread Vial Convenience Kits (Vials, Caps Vials packaged in a clear-lid tray. Caps with septa packaged in a plastic bag. For an instrument reference chart for 2

Which Septa Should I Use? Thermolite Plus septa are a proven low-bleed champion. With a maximum temperature of 350 °C, Thermolite Plus septa are suitable for most applications. BTO septa are bleed and temperature optimized with a maximum temperature of 400 °C, for the most demanding GC and GC-MS applications. They attain remarkable softness and

Greenwood - 2ml Screw Thread Vials & Caps - ProductsBlue Cap w/PTFE/Silicone Septa for 9mm Threaded GC Vials (100pk) SKU: 09-0030B. Add to Cart Add to Quote. 8-425mm Black Cap w/I

injection methods. PTFE septa are rarely used for GC applications. Polyethylene (PE) Septa and Integral Molded Closures Chemically resistant polyethylene septa are usually molded into single-piece caps. The surface for needle penetration is 0.01" thick, allowing for use with most HPLC autosamplers. Polyethylene septa are not resealable and are

Aijiren now coats each premium 11-mm inlet septa with plasma to eliminate sticking in the GC inlet. With our premium non-stick septa, you'll never have to scrape bits of septum out of your inlet. Our premium septa also have a recess on the injection side that guides the syringe needle to the same point with every injection.

Sep 1, 2005 · Reduce the risk of septum scoring by using tapered needles, which easily penetrate the septum. In combination with prepierced septa (supplied under the name BTO [Varian BV]), septum scoring is minimized. These septa have a hole in the middle, allowing easier access for the needle while maintaining the sealing characteristics.