Teflon septa for lab sample sealing

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.

Wheaton headspace vials accept 20 mm aluminum seals Rounded shoulders and bottoms, allowing for even heating and safer operation at higher pressures Manufactured from Type I borosilicate glass Top provides a tighter seal with your septa O.D. x Height: 23 x 75 mm Capacity: 20 mL. Related Products: 20 Ml Glass Vials. Compare this item.

Description. Pricing. Details. black polypropylene, septum (TEF/red rubber), septum thickness 1.3 mm, 8-425 thread. Expand. Hide. 854987. black polypropylene hole cap, thread for 13-425, PTFE/red rubber septum, for use with 4 mL vials with 13-425 thread, pkg of 100 ea. Expand.

Ace Glass. The Ace Glass septa is made from strong rubber for durability and is ideal for sealing columns in laboratories. This septa is designed to use with 24/40 joints. Application: For Sealing Column Ends.

Sep 1, 2005 · Figure 2 - Septum degradation (seen as ghost peaks). Following is a simple test that can be performed in the laboratory: Keep the column cold (30 °C) for 15 min, perform a blank run (no injection—only a temperature program up to 300 °C), and observe the baseline. After that run, cool the column to 30 °C again, keep it at 30 °C for 60 min

Thermo Scientific Nalgene. Teflon® FEP Bottles RCF to 4,000 x g Withstand temperatures from -100° to +150°C Flat bottoms Autoclavable bottles have an 80% capacity (approx. 200 mL) in refrigerated centrifuges. Bottles include 38 mm Tefzel® ETFE screw caps. Dimensions (o.d. x H, mm): 62 x 122.

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through the center for easier needle penetration and to release the vacuum that forms when a large volume of sample is withdrawn from a vial.

Aijiren’s general-purpose septa are made from an enhanced injection-molded silicone rubber material. The septa material, dark red or gray in color, is specified to withstand over 200 automatic injections at an injection port temperature of 350 °C. You can have confidence in your chromatographic results knowing that each lot of septa goes

Sealing films, tapes and foils are basic consumables common to most wet laboratory setting. Sealing films are designed to protect against oxidation, evaporation, and cross-contamination in cell cultures during processing, storage, and transport. Foils are utilized in multiple ways like covering labware containers and making weighing dishes or

High-quality borosilicate glass vials, open-top caps, .135" Teflon/silicone septa, pre-cleaned with Certificate of Analysis Each case contains 4 boxes of 72 vials Available in clear and amber and . 0.25 ml 1:1 HCL Preservative, GHS label Made in USA. Related Products: 20 Ml Glass Vials. Compare this item.

Thermo Scientific Nalgene. Teflon® FEP Bottles RCF to 4,000 x g Withstand temperatures from -100° to +150°C Flat bottoms Autoclavable bottles have an 80% capacity (approx. 200 mL) in refrigerated centrifuges. Bottles include 38 mm Tefzel® ETFE screw caps. Dimensions (o.d. x H, mm): 62 x 122.

compatibility, effective sealing/resealing and low penetration force make PTFE/silicone septa suitable for all types of chromatographic applications. A thin film of PTFE is laminated to the side of the septum that faces the sample to limit exposure of the elastomer to the solvent. PTFE/Silicone septa are ideal for use in most HPLC and

Aug 5, 2022 · Micro step PTFE-lined Septa are silicone rubber with a beige Teflon-coated underside. Their maximum working temperature is 250 °C. Their maximum working temperature is 250 °C.

I-Chem. Clear borosilicate glass with 0.060 in. Thin Septa 40 mL clear septa vials feature a thin (0.060”) PTFE/silicone septa. The septum is easy to puncture with syringe needles and is ultrasonically bonded to the 24-414 polypropylene closure. No adhesive is used. I-CHEM Certified®.

terephthalate (PBT) High Temperature Caps can be sterilized at up to 180°C and have a Teflon® liner for sealing. The Open Top Caps are polybutylene terephthalate (PBT) and require piercible silicone septa (sold separately) for sealing. The Three Hole Delivery Cap has 1/4-28 threads…