• Self-sealing septa contain silicone that can interfere with LC/MS applications. • Single-layered septa are acceptable if they do not contain plastics or adhesives that can contaminate the sample manager (PTFE is recommended). 3. Use Aijiren Technology‐brand wellplates. Other brands can leach plasticizers (for example, diisooctyl

PTFE/Synthetic red rubber septa are an economical choice for general GC and HPLC applications. Used primarily for routine analysis in gas chromatography with FID, TCD and FPD detectors or HPLC with UV/Vis or RI detectors, PTFE/Synthetic red rubber septa offer good resealability and excellent chemical inertness before puncture.

Dec 21, 2021 · Having the preslit septa helps ensure reproducibly in sample draw from the vial. The preslit septa are compatible with different autosampler injector needle materials like PEEK and metal-tipped. You may not want to use a preslit septa if your sample diluent is extremely volatile or if samples are heated.

The septum you choose for your autosampler vial can impact sample evaporation, sample security, needle bending and blockages, and instrument down time. Don’t let the complexities of septa selection slow you down. Use the simple online Aijiren Tech Septa Selection Tool. Just answer a few questions to discover the best septa for your

Choose from our wide range of superior range of vials and caps – standard, certified andMS certified – facilitate consistent results time and again.

Septa are available with two or even three layers of material. PTFE / Silicone septa (T/S) are the most useful for HPLC applications as they have wide chemical compatibility and low

High performance liquid chromatography is used for separating and analyzing organics in a mixture. It has an advantage over gas chromatography methods because you can run compounds in water samples with very little sample preparation. HPLC has been used in laboratories for over 30 years.

Analytical Vials. Vials play a significant role in analytical analysis and result reproducibility. Vials must be inert and free of extractables or leachables to prevent affecting results. Using certified, application-specific, contaminant-free vials can significantly reduce risk. We offer a broad spectrum of Supelco ® products including

There are a lot of factors to consider when selecting a chromatography vial. Aijiren Tech offers a large selection of 0mm 10-425 HPLC vials and closures, including HPLC vials, inserts, caps, and septa to suit your analytical needs. Vial Dimension: 11.6*32mm Vial Volume: 1.5-2.0ml Cap: Plastic open/solid cap Septa: Non-slit, Pre-Slit, PTFE/Silicone

Oct 20, 2021 · Aijiren cap septa offers new septum materials and unique processes to improve septum sealing integrity and reduce the risk of sample contamination. Septa are 0.035” Natural Silicone with 0.005” Natural PTFE. High quality silicone is used to ensure proper re-sealing and reduced coring. Designed for multiple injections and/or longer sample

Mar 17, 2009 · In HPLC often slitted or cross-slitted Silicone/PTFE Septa are used, in order to offer a penetration aid for the fairly thick and dull needles used in the HPLC instruments. While the instrument needle requires the slitted septa, the user may run into the risk of concentration changes due to the evaporation of solvents.

Apr 10, 2020 · 5. Ghost Peaks: Contamination of cap septa. The importance of septum quality To prevent contamination and to avoid damage, the correct septum selection is crucial. Here are some issues you should pay attention to: 1. Temperature control At higher temperatures, the septa will degrade and cause sample contamination.

Sep 13, 2012 · Separation Science offers free learning from the experts covering methods, applications, webinars, eSeminars, videos, tutorials for users of liquid chromatography, gas chromatography, mass spectrometry, sample preparation and related analytical techniques.

8mm Autosampler Vial Septa Catalog number: 8-6RT1 Related applications: Chromatography Technical Support Customer Service Aijiren Tech™ Septa for 8-425 Screw Thread Caps are constructed of PTFE, PTFE/rubber, or PTFE/silicone to suit a variety of HPLC, GC and IC applications.

These HPLC and GC vials are available as snap, screw or crimp in style, 15uL to 20 mL in sample size, and various of low bleed and high-quality material composition. For GC, GC/MS applications where sample matrices contain volatile or semi-volatile analytes of interest, the most common choice are crimp style vials to limit sample contents from leaking from the vial/closure combination.