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 8-425 Screw Thread Caps with Inserted Septa National Scientific

Nov 29, 2018 · Temperature range -40°C to 200°C PTFE/Red Rubber Septa The most economical septa used in routine analysis Easy to pierce with moderate resealability PTFE chemical resistance until pierced then the septa will have the compatibility of rubber Not recommended when retaining samples for further analysis or for multiple injections

SEPTA, HIGH TEMP, 300C MAX [HS-10/HS-20] (250/PK) E-mail this product to a friend Septa only no caps. Price: $326.00 In stock Quantity: Combine Your Purchase With These Items (checked items will be automatically added to cart) CAPS, HIGH TEMP, CRIMP TOP, 300C MAX [HS-10/HS-20] (1000/PK) In stock $117.00

After heating the septa to 150 °C and equilibrating for 1 hour, a 1-mL sample was analyzed by GC-FID. In comparisons with our previous septa products 0 5 10 15 20 min 20 15 10 5 0 25 Competitor R’s high-temp red septum Aijiren 30 pA Time Figure 6. Chromatographic septa bleed comparison; Aijiren BTO versus competitor’s “Infrared” septum.

Silver aluminum, PTFE/silicone septa 100/pk Silver aluminum, PTFE/butyl rubber septa 500/pk 5061-3370 Silver aluminum, clear PTFE/red rubber septa 1000/pk 5183-4498 Silver aluminum, PTFE/silicone/PTFE septa 1000/pk 5183-4499 Silver aluminum, PTFE/silicone septa 1000/pk 5183-4500 Crimp Caps Silver aluminum, black Viton septa 100/pk

Septa for use with general chromatography vials, liquid injection PTFE/Natural Red Rubber PTFE Natural Red Rubber are moderately priced seals for GC and HPLC with good chemical properties. They are ideal for multiple injections due to high resealability, but not as easy to penetrate as PTFE/RR. Natural rubber septa are offered assembled into

Best septa choice when temperatures are over 125°C. Natural PTFE/red silicone – ST3HT High temperature formulated seal with low bleed. Best septa choice when temperatures are up to 300°C. Blue silicone/red PTFE – ST144 Thin 1.4 mm seal with PTFE face. Resealing capability limited due to thinner silicone layer. Aluminum/white silicone – AS3

Diameter／Format Thickness Remark Applicable Model Remark 2 Material Type Qty. Cat.No. 6mm: 4mm: for High Temperature Analysis: for All HITACHI Model, except G-3000,G-3500,G-3900,G-5000

High Temperature GC Septa. Products. Specifications. High Temperature Septa is made of preconditioned PTFE/silicone rubber and is 3.175 mm (0.125 in) thick. The average life of these septa is up to 100 injections with a 26s gauge needle. The maximum operating temperature is 212° C. Part # / Ref.

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 puncturability at high temperatures. However, at lower temperatures, BTO septa have limited puncturability and septum coring or needle damage may occur.

Mar 17, 2009 · In HPLC often slitted or cross-slitted Silicone/PTFE Septa are used, in order to offer a penetration aid for the fairly thick and dull needles used in the HPLC instruments. While the instrument needle requires the slitted septa, the user may run into the risk of concentration changes due to the evaporation of solvents.

PTFE/Silicone Septa: (T/S) High quality, pure silicone is laminated to 0.005” thick PTFE to give a pure, highly inert septum with excellent resealing characteristics even after repeated punctures. PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications where resealability and high purity are critical.

High Temperature Septa Hamilton High Temperature Septa is made of preconditioned PTFE/silicone rubber and is 3.175 mm (0.125 in.) thick. The average life of these septa is up to 100 injections with a 26s gauge needle. The maximum operating temperature is 212° C. Preconditioned PTFE/silicone rubber septa, 3.175 mm Related Products: Septa

These septa are typically used for manual injection applications. All of the Low Bleed High Temperature Septa can be used at temperatures up to 400 °C. These septa are formulated to extend low-bleed and outstanding mechanical properties of premium GC septa to the highest-temperature applications.

Chemically resistant polyethylene septa are 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 intended for single injection use with aqueous based sample mixtures. Polypropylene (PP) septa and integral molded closures