National Scientific Cap Avcs(Tm) Screw 9 mm Blue PP White Silicone / Red PTFE Septa 1.0 mm 100/Pack

National Scientific Use Thermo Scientific™ surestart™ 9 mm screw caps with screw vials that have a 9 mm opening, including Thermo Scientific surestart 2 mL glass screw vials and 1.7 mL glass high recovery screw microvials for <2 mL samples (level 2). Select level 2 products for high-throughput applications, when robustness and reproducibility are key. Choose from polypropylene caps with all-purpose silicone/PTFE septa of various hardness values designed to reduce autosampler needle issues. Pre-slit and bonded septa options are available. Thermo scientific avcs™ caps incorporate advanced vial closure system technology to ensure optimal seal compression when closing a vial. Use avcs screw caps with Thermo Scientific surestop™ vials for effective seals, consistent data, and increased sample throughput.

Thermo Scientific performance level 2 caps are manufactured and tested to ensure low bleeding, robustness, and reproducibility of results for your routine GC-MS and LC-MS analyses.

surestop vials & advanced vial closure system (avcs) caps:
this patented screw top vial/cap combination features:a push-through resistant sealing ring design, controlled septum compression, and surestop closure positioning flange to ensure an effective seal that eliminates under- and over-sealing, reduces solvent evaporation, and creates less autosampler interruptions. Surestop vials and avcs caps have universal instrument compatibility for all lc and GC autosamplers. They also contain low leachable levels, making them an ideal alternative to bonded caps for those seeking cleaner spectra.

- SPCM (Additional S&H Or Hazmat Fees May Apply)