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®.
The Finneran 9 mm septa in white color, is mainly used with screw thread closures for tight sealing of the stored sample. It is mainly used in research laboratories or in chemical industries. This septa is made of sturdy PTFE material which ensures long lasting usage and durability. Compare this item.
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National Scientific. 20mm Crimp seals with prefitted septa for headspace vials Seals with pre-inserted septa are convenient and minimize contamination due to handling Use magnetic seals with CTC/Leap* Technologies, Gerstel* and other magnetic transport autosamplers PurePak* PTFE/Silicone seals are packed. Compare this item.
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.
Jul 2, 2013 · Repeat steps 4 and 5 for flask 2. Purge the syringe by inserting the needle through the septum of the solvent flask and into the headspace of the flask. Draw up the inert atmosphere into the syringe. Remove the needle from the flask and expel the gas from the syringe (Fig. 14, D). Repeat 3–4 times.
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.
and incorrect handling of these devices. A recent study1 on lab injuries found that lacerations and punctures from sharp items are more widespread in academic laboratories in comparison to other laboratory injuries such as chemical spills, exposures, explosions, and implosions. Lately, a serious injury (necrosis)
PTFE/Silicone Septa: (T/S) High quality, pure silicone is laminated to 0.005” thick PTFE to give a pure, highly inert septum with excellent resealing characteristics even after repeated punctures. PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications where resealability and high purity are critical.
scale using syringe techniques. This data sheet is limited to those techniques necessary for handling air-sensitive reagents on a preparative laboratory scale. The Aldrich Sure/Seal™ Packaging System The exclusive Sure/Seal packaging system provides a convenient method for storing and dispensing research quantities of air-sensitive reagents.
Aug 6, 2013 · Instead of step 9, however, the Teflon top of the Young’s NMR tube is attached and used to remove the NMR tube from the preparation tube without exposing the sample to the atmosphere. To Make an Air-Sensitive NMR Sample in a Glovebox. It is possible, and relatively simple, to make an NMR sample in a glovebox.
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.
Jun 4, 2013 · Seal vessel with a greased, ground-glass stopper. Rubber septa should not be used as they do not hold a vacuum as well and can be sucked into the flask, exposing it to air. Rubber septa are also difficult to remove from inside a flask. Ensure tap H is open (Fig. 8). Open tap B to vacuum (Fig. 8). Wait 10–30 s depending on the size of the vessel.
Stretch-It™ Teflon® Sealing Tape Non-adhesive, stretchable Available in a variety of sizes; each roll is 108 feet long Useful for sealing, covering or insulating irregular surfaces. Can be used on the lips of flasks, test tubes, beakers, bottles, etc. Remains pliable in. Related Products: Bottle Sealing Tape. Compare this item.
DWK Life Sciences (Wheaton) Screw caps Autoclavable Rubber lined caps Amber sample vials have solid top black phenolic caps that are Teflon® faced with 14B rubber liners. Cap material is black phenolic and cap and liners are autoclavable. With these vials, Teflon® and Type 1 glass are the only surfaces that will make. Compare this item.
5 Vials, Caps and Septa Kits, continued Description Pkg. Part No. Screw Top Vials/Caps/Septa 2 mL 8 mm Screw Top Clear Glass Vials 100 N9302945 8 mm Screw Caps – no Septa – Phenolic Cap with Hole 100 N9303441
