Choosing the right septa and closures for your analysis is critical to ensure chemical compatibility with your sample and solvents and protect sample integrity and prevent contamination. Screw and snap caps are usually made of plastic, mostly polypropylene (PP) or polyethylene (PE), whereas seals for crimp-top vials are made from aluminum.

Certified Vial Kit, Low Adsorption (LA), 2 mL, pk of 100, volume 2 mL, clear glass vial (with marking spot), natural PTFE/silicone septa, thread for 9 mm composite dimension.default 12 mm × 32 mm × 6 mm

Vials and caps for analysis and for sample storage. Our portfolio contains autosampler vials and caps for HPLC and GC for all common instrument manufacturers, such as Aijiren Technology, Aijiren, Shimadzu and others. It is completed by lab accessories, like vial containers and racks or crimpers / decappers. Storage vials for liquid or powdery samples are

Overview. Available in LC-GC, LC-MS, and TruView pH Control LCMS Certified Vials with cleanliness tested by UPLC-UV and MS. Consistent vial-to-vial and lot-to-lot performance. High recovery vials for limited sample volumes. Compatible with all autosamplers and designed to fit a range of caps. Complete selection of vial sizes and materials with

• All our vials, caps and septa are fit to perform on PerkinElmer and non-PerkinElmer instruments • We stock a wide variety of sizes, colors and materials of vials, caps and septa • All vials are packed in a clean room and those labelled with ‘LC Clean’ include an additional certificate of analysis

Jan 19, 2018 · Septa 1 is fixedly and rotarily sealing by a screw opening between fixing sleeve A and B. Additionally, septa 2 is fixedly and rotarily sealing also by a screw opening between the screw-cap and headspace vial. Since septa 1and septa 2 is tightly fixed and fastened to each other, the air leakage from the closed vial caused by the pierced septa 2

Nov 5, 2018 · A: There are 3 different types of vial closure - crimp, screw and snap caps. Crimp caps are made of aluminium, and the septum is squeezed between the rim of the glass and the cap upon crimping

septa provided significantly cleaner HS backgrounds at various HS vial-equilibration temperatures (up to 300 °C). The chemical compatibility was also favorable. High Performance septa are the recommended option for reliable and efficient HS/GC analyses at high temperature. Experimental Screw caps and crimp caps with High Performance septa

The septum forms a barrier between your sample analyte in the vial and the outside atmosphere. This barrier protects your sample from external contamination while allowing a needle (from a manual or automatic syringe) to enter the vial, and extract the sample for the next stage of separation.

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 that

Aijiren CrossLab vials, caps and septa Aijiren MS Analyzed vials, caps and septa General Purpose Vials and Storage Crimpers and Decappers New High Performance Septa New Aijiren Certified Vials Brochure. Our portfolio includes: PLEASE NOTE: Not all options listed below are available in every configuration.

Different septa material for LC and GC applications There are many different 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 When selecting which septa is right for your experiments, it

Mar 31, 2022 · Silicone/PTFE septa – If you have a critical analysis that needs a clean liner ; PTFE/silicone/PTFE – When dealing with low coring and when you need both sided PTFE laminated liners; General Chromatography Vials: Septa Properties. Find out about four types of septa research used in general chromatography. Three types of rubber

* UltraBond seal, cap & septa form an inseparable unit, so that septa cannot fall out. 1.5mL screw vial kit, including vial, cap and septa, 100/pack Kit part number Vial Vial part number Septa material Cap/Septa part number 220-97331-30 Clear with write on spot 220-97331-25 PTFE/Silicone, ultra-clean 220-97331-27

Sep 13, 2012 · Vials, Caps & Septa. Recently we have observed that few times the sample when injected from a particual vial is giving different area than the same solution when refilled in a different vial. The 1st vial repeatedly gives the same area even on changing the cap & septa, injection by removing both caps & septa, injection by removing only septa.