Chemglass. Replacement septa for use with MW-102 open-top screw caps on Minum-Ware® glassware components. Septa are made of silicone rubber with one side having a RED PTFE face, while the opposite side has an ultrathin covering of polypropylene to prevent needle coring when penetrating septa. Compare this item.
Molded Septa are manufactured from high quality, low bleed material that uses the same exclusive LB-2 rubber formulation chromatographers are accustomed to using. Design. With Injection Hole. Type. Septa. For Use With (Equipment) Low Bleed GC-MS Columns. Temperature (Metric) Max. 350°C.
Septa intended for covering of analytical samples are coated by polytetrafluoroethylene (PTFE, Teflon). Teflon coating is applied to reduce negative factors such as: permeation through the septum, absorption of the analytes, and the off-gassing process. Additionally, PTFE is a chemically inert material that does not react with analytes . They
Selecting the Correct Septa. It's vital to choose the right septa for your application. The wrong septa can compromise the accuracy of your results and reduce the lifespan of your supplies (increasing overall costs). The below chart shows some common septa materials along with their compatibilities, incompatibilities, and resealability.
selection guide 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
Aijiren's headspace vial caps are engineered to prevent sample contamination while providing consistent, secure seals. Headspace vial caps are available in a variety of materials including aluminum, bimetal, and steel; headspace vial cap septa are available in PTFE/silicone, molded PTFE/butyl, and high-temperature varieties.
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
The septa are conditioned to provide the lowest level of chromatographic extractables. If you are looking for the ultimate performance from your methods while maintaining the highest levels of sample security and integrity, our Performance Level 3 products will meet your needs. Select the products with three waves.
Aug 5, 2022 · The Siltek ® technology marks a significant upgrade to Silcosteel ® with more robust inertness to a variety of chemical compounds, enabling greater analytical sensitivity. 2001: Sulfinert ® is released, reflecting the application of Siltek ® technology on a wider variety of sample flow path components beyond inlet liners, including sample
EP Scientific Products. Available in clear or amber borosilicate glass Open top vials are assembled with polypropylene caps with 0.060" or 0.125" PTFE/silicone septa Closed top vials are assembled with polypropylene caps with 0.125" PTFE /silicone septa Included polyethylene dust covers protect injection. Compare this item.
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Red PTFE-Coated Butyl Rubber, Pre-assembled 1000 B4000025 Aluminum-Coated Silicone, Unassembled Cap/Septa/Spring 100 B0104243 Aluminum-Coated Silicone, Unassembled Cap/Septa/Spring 1000 B0104244 Aluminum-Coated Silicone, Pre-assembled 1000 B4000028 PTFE-Coated Silicone, Unassembled Cap/Spring 100 B0104241
Oct 21, 2022 · There are several benefits of silicone septa. For example, silicone can withstand extremely high and low temperatures and maintain its flexibility. It's also chemically inert and won't impact the sample's integrity. Lastly, silicone is resistant to UV radiation and is suitable for various sterilization methods, including steam autoclaving.You
The Aijiren Technologies inlet septa is made from strong silicone material and works well even at 35 degree C temperatures. This septa is compatible to use with , , 4890, , , GC columns. Application: For , , 4890, , , GCs This product is only available to. Compare this item.
Sep 5, 2022 · Volatile organic compounds are of great importance for communication within biological systems. For the experimental investigation of the functions of volatiles, methods for experimental manipulation are needed. Based on scent-release methods from pheromone research, we describe a simple and cheap method for scent manipulation using silicone rubber (i.e. a silicone septum). Volatile compounds
Jun 4, 2013 · Open the tap H to the vacuum line and allow the headspace to be evacuated for 2–3 min (Fig. 10, step 3). Close the tap H on the flask, isolating flask from the vacuum (Fig. 10, step 4). Remove flask from liquid nitrogen and allow solvent to thaw (Fig. 10, step 5). A warm water bath on a stir plate can speed this process.
