Injection Port Septum Even when a low bleed septum is used, bleeding is not totally eliminated. The type of bleeding differs according to the septum type 

Typical Applications ; 8-13mm HPLC and GC Vial Septa ; 24-110mm Bottle Liners ; 24mm VOA Vial Septa.

If septum bleed is the cause, the extra peaks correspond to compounds released by septa upon heating in an injector. Sometimes these compounds may appear.

20mm Silver Aluminum with 0.125" Ultra-Low Bleed PTFE/Silicone Septa Crimp Cap, 100/pk. Sciencix Part #: 44-2010. 44-2010.jpg.

Bonded septa to secure and prevent it from falling into the vial during use. The low bleed silicone layer provides excellent resealing abilities, 

Feb 1, 2013 The significant presence of septum-related ghost peaks, causing interference in routine gas chromatography-mass spectrometry analyses at ...

Suitable for conveniently introducing the sample without causing the system to leak. Improper septa decompose under the high-temperature conditions of capillary 

Trajan septa undergo conditioning (thermal and chemical) to reduce siloxane bleed. Siloxane bleed can occur during heating, solvent interaction or piercing 

Ultrasep R is one of the best low bleed septa on the market. With a 45-55 durometer hardness rating they are not difficult to penetrate. The upper temperature 

general GC and HPLC applications. PTFE/Silicone septa are ideal for use in most HPLC and ... High temperature formulated seal with low bleed. Best septa ...

Clear borosilicate glass vials with a 0.125 low bleed fluoropolymer resin/silicone septa for EPA Method 5035 soil analysis.Water sampling vials are ideal 

This is caused by trying to inject too large a sample to be vaporized in too small a space in the injector. The vaporized cloud expands back 

Jan 26, 2021 From my experience with FID, you shouldn't have issues with septa bleed from re-running samples within the same day. If you inject the vial and ...

High-performance GC Septa for autosampler use Outstanding lifetime Very low bleed Maximum temperature of 350°C Septum typically achieves 400 injections without 

These vials have a black cap with PTFE/Silicone (Ultra Low Bleed) Septa for GC. All our vials are packed in a clean environment to ensure you receive