网页2012/07/10 · Abstract. The significant presence of septum-related ghost peaks, causing interference in routine gas chromatography–mass spectrometry analyses at sample inject Different septa shown in Figures 2A–2D used in this study were obtained from various sources, including: SGE Analytical Science (Australia, part number 041904; suggested

网页Septa. A wide range of serrated and non-serrated septa, and sleeve stoppers are available for use as temporary closures for glassware joints, tubes, bottles, NMR tubes, ampules,

网页Septa. Septa are available in a variety of materials and thicknesses. PTFE Natural Rubber are moderately priced seals for GC and HPLC with good chemical properties. They are ideal for multiple injections due to high resealability, but not as easy to penetrate as PTFE/RR. PTFE/High Performance Rubber is a highly pure synthetic red rubber septum

网页Supply for Chromatography. GC Septa. As an essential element of any GC system, we carry a wide selection of high quality septa for your laboratory applications. We offer Septa by Aijiren Technologies, Aijiren Tech, SGE and other leading manufacturers. High-quality and affordable alternatives are available in the form of our own brand Altmann

网页1470-0669-L. 17mm Diameter SSP2122-GH, 3mm Thick, High Temp Precision Molded Red GC Septa with GUIDE HOLE, Ultra Low Bleed and Long Life. Jars of 25. 1470-0669-XXV. 9.5mm Diameter SSP2122, 3mm Thick, High Temp Precision Molded Red GC Septa with Ultra Low Bleed and Long Life. Jars of 100. 1460-0375-C.

网页Small Reaction Vial (3) 2 mL Large Opening Vial, 10/425 Thread (2) Finnigan 9000/9500, Tracor 220/222 (2)

网页Bleed temperature optimized (BTO) inlet septa are preconditioned and ready to use with low-bleed, mass spec capillary columns. Our long-life septa are specially formed for

网页2016/07/01 · Septa for Inlets. Arguably the most stressed-out parts of a GC system, inlet septa are tasked with maintaining a leak-tight seal between the atmosphere and carrier gas while not introducing significant contaminants into the carrier-gas stream-all of this while heated to upwards of 250 °C and being repeatedly punctured by sharp needles.

网页NT septa can be supplied loose, press fit into closures, or bonded using an adhesive-free bonding process. Only the highest quality silicone elastomers are used to ensure proper re-sealability and to minimize coring. Various film types such as PTFE and FEP may be used to maximize chemical resistance.

网页2020/08/04 · Today, HAWACH will mainly discuss how to choose the right sample vial septa. PTFE natural red rubber septa of 2 ml HPLC sample vials are moderately priced and have good chemical properties, suitable for GC and HPLC. Sealing performance is good after repeated use, and it is an ideal choice for multiple injections, but the penetration

网页Find rubber septa and related products for scientific research at MilliporeSigma TEFG02525 suitable for sterility testing, for glass vials with rubber septa and rigid plastic vials., PTFE (hydrophobic membrane filter) Expand

网页Chromatography Research Supplies. High-performance GC Septa for autosampler use Outstanding lifetime Very low bleed Maximum temperature of 350°C Septum typically

网页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 less than 3%. This outcome indicated that butyl rubber is

网页Material. aluminium. Rubber septum consists of a disk of rubber or similar material used to seal a vial or other device. It is installed along the inside of a cap, which is typically made of metal or plastic. A syringe needle pierces the rubber septum for the purpose of injection and, on withdrawal, the elasticity of the septum ensures that the