Maximizing Sample Integrity with Chemically Resistant Polypropylene Vial Septa

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

range of common solvents used in sample preparation. 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.

an extended period, plastic vials would be a better choice. VIAL CLOSURES Vials are available in three closure types; crimp, snap, and screw cap. The closures have advantages and disadvantages. Crimp Caps squeeze the septum between the rim of the glass vial and the crimped aluminum cap. This forms an excellent seal preventing evaporation.

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Jan 24, 2022 · One last comment on the vial design: their caps, and more importantly, their septa, may differ. We commonly use PP caps with pre-assembled septa. These are convenient and minimise contamination from handling. The material the septa are made of is generally silicone or rubber, compatible with different solvents.

Aijiren polypropylene vials, or PP vials, are available in fill volumes starting at 250 µL. The complete range of 2 mL plastic sample vials have the same external dimensions as our standard wide-opening 2 mL glass vials and are fully compatible with our full range of screw caps, snap caps and crimp caps. 2 mL plastic vials (sometimes known as polypropylene HPLC vials or 1 mL plastic vials

Polypropylene is by far the best option for plastic vials due to its good chemical resistance for short term storage. They can also be incinerated while sealed limiting exposure to hazardous materials. View vials and filter by vial material. 8) Choose the best vial color for your sample. Both plastic and glass vials come in clear or amber options.

Select Level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Our TOC certified kits include 40 mL glass screw vials and pre-assembled polypropylene screw with bonded, high purity silicone/PTFE septa. Each lot of TOC vials is tested and certified to

SPEX SamplePrep. SamplePrep 8001 and 8009 Vial Sets. Polystyrene Vial w/Screw-On Cap: For wet or dry mixing of liquids and powders. Vial size 21/8 in. (5.4 cm) diameter x 21/2 in. (6.7 cm) long. Polystyrene body with plastic screw-on cap. Volume 135 mL; mixing load approximately 50 mL. For use with SPEX.

Materials commonly used for septa include PTFE, silicone, natural red rubber, butyl rubber, Viton, polypropylene and polyethylene. PTFE is often laminated onto the sample facing side of a resealable septum to improve solvent exposure characteristics.

Access premium laboratory bottles from our range of over 3,000 containers and closures. Our lab bottles portfolio includes clear or amber Type I borosilicate or Type III soda-lime glass. In addition, we offer plastic bottles in HDPE, PP, LDPE or PET in a wide range of sizes to suit most user applications. Through our innovations, we support

maintain your sample integrity during spinning, freezing, and storage. High-clarity Polypropylene Falcon conical tubes are made from high-clarity polypropylene. Combining strength, chemical resistance, thermal stability, and optical clarity, Falcon tubes provide reliable performance for all of your critical research applications. Screw Cap

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

Precleaned, EPA certified assembled kits; includes 40 mL screw vials and 24 mm. open top screw caps. 0.3 and 1.5 mL screw top vial-cap kits for analysis of small sample volumes. For use with environmental analyses under EPA regulations. Highest levels of sample security and integrity. Precleaned.

The septum is provided with a thin 0.005” PTFE layer laminated to highly pure silicone, and slit through the center for easier needle penetration and to release the vacuum that forms when a large volume of sample is withdrawn from a vial.