The Role of PTFE and Silicone Septa in Quality Control Laboratories and Testing

PTFE/Silicone Septa: (T/S) PTFE/Silicone is the most versatile septum material offered in various formulations to address specific applications requirements . Extractables from PTFE/Silicone septa are generally at lower levels compared to other resealable materials . PTFE/Silicone septa are formulated for different hardness (durometer)

PTFE Thin, fragile needle? Soft and thin septa required e.g. silicone/ PTFE Blunt, thick needle? Slit/pre- cut liner as penetration aid (HPLC) silicone/ PTFE, slit Critical analysis? Very clean liner required

For use with EP Scientific EPA VialsWhen separating organic and inorganic compounds for analysis, chromatography vial closures protect compound mixtures from contamination. The caps feature different finishes and septa materials for gas or high performance liquid chromatography applications. Maintain a clean and safe workplace using the spill-free chromatography vial closures available in

PTFE/Silicone septum is provided with a thin 0.005” PTFE layer laminated to our high purity silicone and slit through the center to provide for easier needle penetration as well as to release the vacuum that forms when a large volume of sample is withdrawn from a vial.

Mar 31, 2022 · PTFE/silicone septa. PTFE/Silicone is an ideal choice for analyzing volatile organic chemicals. These analyses happen at low concentrations or during operation at higher conditioning temperatures. Store PTFE/Silicone septa in a glass Purepak jar to ensure: 1. minimal background, 2. low permeability, 3. and the best performance of any headspace

PTFE/Silicone is the most versatile septum material offered in various formulations to address specific applications requirements. Extractables from PTFE/Silicone septa are generally at lower levels compared to other resealable materials.

Red, PTFE/silicone/PTFE septa 100/pk 5182-0725 Blue, pre-slit PTFE/silicone septa 100/pk 500/pk 5185-5865 Green, pre-slit PTFE/silicone septa 100/pk 5183-2077 Red, pre-slit PTFE/silicone septa 100/pk 5183-2078 Polypropylene Screw Caps with Bonded Septa Blue polypropylene cap, bonded PTFE/silicone septa 100/pk 5185-5823

Headspace Silicone Convenience Kit contains everything you need to run Gas Chromatography. Each product is manufactured using strict quality control standards resulting in consistent cap dimensions with septa which may be certified for higher purity grades.

selecting septa. PTFE/red rubber septa are not recommended for multiple injections or for samples that need to be stored for further analysis. When applications require a longer time between injections or any type of standard additions, PTFE/silicone septa are always best. What force is required to penetrate the septum?

The PerkinElmer PTFE Coated Silicone Septa come in a pack of 100. Regulatory Compliance and Quality Control Testing Solutions in Cannabis & Hemp ...

The PerkinElmer 11 mm Snap Top Clear Plastic Cap with PTFE/Silicone (white/red) Septa (100/pack) are made in a wide variety of sizes and materials ensuring you have the right combination for your sample type and analysis temperature.

Our closures with septa are made in a wide variety of sizes and materials ensuring you have the right combination for your sample type and analysis temperature. 9 mm Pre-Assembled Blue Polypropylene Screw Cap with Pre-Slit PTFE/Silicone Septa, 100/pk | PerkinElmer

Butyl/PTFE septa are an economical choice with low background peaks. Molded PTFE/butyl septa offer the tightest seal of all PTFE items, as well as low background peaks. PTFE/silicone septa are excellent for volatiles. Aluminum/silicone septa are also excellent for volatiles, but not suitable for repeat injections.

Our closures with septa are made in a wide variety of sizes and materials ensuring you have the right combination for your sample type and analysis temperature. Each product is manufactured using strict quality control standards resulting in consistent cap dimensions with septa which may be certified for higher purity grades.