National Scientific Cap Screw 9 mm Grey PP White Silicone / Red PTFE Septa Bonded Slit 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 our surestart 2 mL glass screw vials, 2 mL gold-grade glass screw vials, total recovery glass screw microvials for <2 mL samples, 1.7 mL high recovery glass screw vials, and glass screw microvials for <2 mL samples (level 3). Select level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Choose from polypropylene caps with all-purpose silicone/PTFE septa designed to reduce autosampler needle issues. Pre-slit and bonded septa options are available. Our avcs™ caps incorporate advanced vial closure system technology to ensure optimal seal compression when closing a vial. Use avcs screw caps with our surestop™ vials for effective seals, consistent data, and increased sample throughput.

Thermo Scientific performance level 3 caps are specially designed and treated for mass spectrometry applications and contain the lowest amounts of metals, extractables, and leachables, ensuring that you consistently achieve sensitivity and selectivity from your most challenging analytes.

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)