PTFE/Butyl (Pharma Fix Septa) Aluminum Cap N9306224 PTFE/Red Rubber (red) Aluminum Cap, Star Spring and Septa N9304147 N9302978 PTFE/Silicone (white) Aluminum Cap, Star Spring and Septa N9304146 B4000022 PTFE/Silicone (white) Low Bleed Aluminum, Skived Pressure Relief N9302975 PTFE/Silicone (white) Low Bleed Aluminum, Skived (non-Pressure
Select Level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Choose from a variety of kits containing short thread screw vials with marking spots in clear or amber glass and polypropylene caps with silicone/PTFE septa designed to reduce autosampler
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.
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.
PTFE/Red Rubber Septa offer good solvent resistance, good resealing characteristics and resistant to coring. They are an economical choice where a PTFE barrier is desired. The recommended operating temperature range for this septum is –40 to 100°C PTFE White Silicone PurePakTM Septa: (C4020-32) PurePak PTFE/Silicone septa are an excellent
Select Level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Choose from a variety of kits containing short thread screw vials with marking spots in clear or amber glass and polypropylene caps with silicone/PTFE septa designed to reduce autosampler
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. Solid Disc. Type. Septa. For Use With (Equipment) Low Bleed GC-MS Columns. Temperature (Metric) Max. 350°C.
Both types of silicone and butyl rubber septa have a PTFE barrier layer which faces the sample, which reduces the contact between the sample and the silicone and butyl rubber. Before the PTFE layer is punctured, the chemical compatibility properties of the PTFE will
For our screw caps N 24 (702060, 702061) Butyl/PTFE and Silicone/PTFE septas N 22 are available. Nominal diameter. N 22. Septa material. Butyl/PTFE. Colors of septa material. Red/gray. Septa thickness. 2.4 mm.
.jpg)
Sample Vial Caps&Septa. Red PTFE/White silicone septa + Aluminium cap with hole, for 2ml crimp top vial. 100 (pcs) $16.00. + -. LBSV140CSS. Sample Vial Caps&Septa. Nature PTFE/Nature silicone septa + Black screw cap with hole, for 20ml/30ml/40ml/60ml 24-400 screw top vial.
Mar 31, 2022 · PTFE/rubber septa. PTFE/Red Rubber Septa have: 1. strong solvent resistance, 2. resealing properties, 3. and are coring resistant. When you need a PTFE barrier, they are the most cost-effective option. Until the initial puncture, the PTFE face increases solvent compatibility. Temperature stability chart for PTFE/rubber septa:
PTFE/ High-performance red rubber septa -40 +110 -40 +230 PTFE/Silicone septa: (T/S) -60 +200 -76 +392 PTFE/Silicone/PTFE septa: (T/S/T)* -60 +200 -76 +392 PTFE septa* -200 +250 -328 +482 Butyl/Chlorobutyl/Bromobutyl stopper or septa -20 +125 -4 +257 Gray PTFE/Red rubber -40 +120 -40 +248 PTFE/White silicone purepack septa -60 +200 -76 +392
PTFE-Coated Silicone, Pre-assembled 1000 B4000022 20 mm Gray Butyl/PTFE Pre-assembled Cap/Septa/Spring 1000 N9306264 20 mm Gray Butyl/PTFE Pre-assembled Cap/Septa/Spring 100 N9306265 Clear 20 mL Headspace with Write-On Patch and Fill Lines Gray PTFE/Butyl Kit, Unassembled Cap/Septa/Spring 100 N9306266
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.
On the other hand, butyl rubber–PTFE septa are mechanically hard and more resistant to the absorption of the constituents of a sample, and it is stable up to 130°C (12, 14). Kolb et al. showed that in using silicone–PTFE rubber septa, 69% of acetone and 89% of dichloromethane were lost, while in butyl–PTFE rubber septa, the losses were
