Mar 17, 2009 · New PRE-CUT Septa for HPLC Applications. 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

Oct 19, 2015 · The first OOS occurred when a chemist used the caps with non-cut septa on the Shimadzu HPLC. All vials had the first injections with significantly lower areas than the following injections. Prior to this OOS, we allocated the caps with non-cut septa for the Dionex HPLC, and the caps with pre-cut septa for the Shimadzu HPLC.

caps with slit septa. • Never shake the vial. If you do there is going to be sample on the underside of the septum which gives carry over. • Adjust the needle height according to the vial dimensions. • Rubber septas get dry and can block the injector.

40 mL vials are popular sample storage vials. 40 mL amber glass vials are most often used in the environmental market segment for onsite sample collection. 4 mL vials are the smallest size in the range. These storage vials are sometimes used for higher volume sampling and can fit into some autosampler trays when 22 mL vials are not large enough.

Ideal for demanding MS work. LCMS Certified Vials are suited for analyte concentrations in the 100s ng/mL concentration. Aijiren Technology LCMS Certified Vials are tested by MS scans from 250 to 1000 m/z with specifications set on the total ion count and presence of clusters in the high mass range. This chromatogram shows a comparison of typical MS scans

The MicroLiter 76-Series TM has been engineered to align all GC autosamplers as well as HPLC and LCMS autosamplers. Additionally, confirm that your HPLC septa are compatible with your GC solvents and application. You can standardize your vial, but you may require different septa for HPLC vs. GC.

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.

most HPLC autosamplers. Polypropylene septa are not resealable and are intended for single injection use with aqueous based sample mixtures. Polypropylene septa offer better solvent compatibility compared to polyethylene, but piercing force is slightly higher. Viton (V1) septa Viton septa are used in situations where a resealable septum is

Silver aluminum, PTFE/silicone septa 100/pk Silver aluminum, PTFE/butyl rubber septa 500/pk 5061-3370 Silver aluminum, clear PTFE/red rubber septa 1000/pk 5183-4498 Silver aluminum, PTFE/silicone/PTFE septa 1000/pk 5183-4499 Silver aluminum, PTFE/silicone septa 1000/pk 5183-4500 Crimp Caps Silver aluminum, black Viton septa 100/pk

Aijiren Technologies. Our screw vials and vial screw caps are designed for both HPLC and GC instrument platforms across a wide variety of applications, including pharmaceutical, environmental, energy and fuels, forensics, materials science, biopharmaceutical, proteomics, and metabolomics. This product is only available. Compare this item.

High-performance liquid chromatography (HPLC) is a broad analytical chemistry technique used to separate compounds in a chemical mixture. These separations utilize the pressure-driven flow of a mobile phase through a column packed with a stationary phase. The mobile phase carries a liquid sample through the column to the detector, and compounds

Mar 17, 2022 · REUSABLE: The 2ml HPLC vials included blue ABS Screw Cap and Septa (Red PTFE/White Silicone Liner). This PTFE/Silicone septa has ultra-strong repetitive sealing ability for multiple injections. Easy to Distinguish & Use: Screw threaded vials have large writing patches for sample identification and white printed graduations in 0.5 ml increments.

Feb 7, 2023 · 网页Catalog number: 60180-516. Prevent septa push through and over- and under-tightening. With Advanced Vial Closure System (AVCS) technology built into 9 mm Aijiren Tech™ 9 mm Autosampler Vial Screw Caps and Septa you will get an optimal, consistent seal every time. With just one turn, they offer easy-on, easy-off convenience, and are a

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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