Overview Diferent septa material for LC and GC applications There are many diferent types of materials used to produce the septa found in LC and GC vial caps. This document will provide you with the technical guidance you need in order to make the right selection. Choosing the right septa
Jan 10, 2022 · At present, silicone rubber-based ablative composites are usually enhanced by carbon fibers (CFs) to protect the case of solid rocket motors (SRMs). However, the effect of the CFs’ length on the microstructure and ablation properties of the silicone rubber-based ablative composites has been ignored.
The septum is provided with a thin 0.005” PTFE layer laminated to highly pure silicone, and slit through the center for easier needle penetration and to release the vacuum that forms when a large volume of sample is withdrawn from a vial.
Vial convenience pack, screw top, clear vials with write-on spot, blue caps, certified, PTFE/silicone/PTFE septa, 500/pk. Vial size: 12 x 32 mm (12 mm cap) Add to Favorites + Create New list
• Cleaner vials eliminate ghost peaks and contaminants Vial Kit, Snap, µVial i3 (Qsert), Clear w/ Patch + PTFE/Silicone Vial Kit, Snap, µVial i3 (Qsert), Clear w/ Patch + PTFE/Silicone, preSlit 100/pk AR0-9671-12 AR0-9672-12 1000/pk AR0-9671-13 AR0-9672-13 See page 32 for specialty vials product details. Snap-Top Snap-Top Vial Products
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. The septum is provided with a
Septum, PTFE/Silicone tan PTFE/silicone septa, diam. × thickness × PTFE thickness 20 mm × 0.125 in. × 2 mil, pkg of 100 ea; find Supelco-27236 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich
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
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
Catalog number: C4015-10. For use with 13-425 threaded caps or 13mm Snap/Crimp Caps, Aijiren Tech™ 13mm Septa are available in PTFE/ Red Rubber, PTFE/Silicone or Red PTFE/White Silicone/Red PTFE to suit a variety of applications. Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and
Content. Aijiren produces matching Closures for HPLC Vials, especially Septa, which is made of Silicone and PTFE. Septa can ensure that the hplc vials are sealed. At the same time, it must ensure that the automatic injection needle can penetrate into the interior of Vias for sampling, so for Septa There are certain requirements for the thickness.
A specially moulded seal with a PTFE insert. Sealing surface of Butyl and PTFE affects a more positive seal than non-PTFE-faced septa. Ideal choice for temperatures below 125°C. Good sealing characteristics, excellent resistance to most solvents with reduced coring and high puncture tolerance.
Your Price: $281.75. SKU 376740-TOC-VAC. Units per Package: 72. 40 mL, Clear, Low Level TOC Vials - Polypropylene Open Top Caps and Septrseal PTFE/Silicone Septa; Precleaned/Lot Certified for Low Level TOC Analysis. Please call 800-648-7800 for bulk or volume pricing. Add to Cart to Change Quantity.
Sep 28, 2015 · The septa are formed from 2 layers. The PTFE is on the lower side that faces your sample in the vial and is relatively inert to solvents. The top side is red coloured rubber or a silicone that helps to make the seal with the cap on crimping. In general the Rubber/PTFE septum is fine for general use for 1 or 2 injections within a short space of
PTFE/silicone/PTFE – TST1, TST11. A layer of PTFE on each side of medium hardness silicone. Most resistant to coring with above average resealing characteristics. Recommended for most demanding applications such as trace analysis, longer time between injections, or for internal standards.