Chromatography Autosampler Vial Caps
Microsolv Technology Corporation Caps, Snap Top, with 0.04" thick, White Silicone Rubber / Natural PTFE Septa, fitted in smooth, polyethylene, Green Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 100/PK.
Natural PTFE is very pure and does not have dyes that could extract from it. Our most economical Silicone Rubber / PTFE Snap Cap.
Microsolv Technology Corporation Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit Septa, fitted in smooth, polyethylene, Yellow Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 1000/CS.
Soft-Guard™ Septa provide easier penetration of autosampler needles and better resealing than other brands, for longer instrument up-time and fewer missed injections. Pre-Slit Septa are normally recommended for Waters Alliance and Acquity instruments.
Trajan Scientific L-MARK Brand Cap Screw Green 9mm PTFE/Sil Bonded, Case of 1000
L-MARK Brand Screw Cap, PP, Green, Red PTFE/White Silicone, 9 mm, Bonded, 1000/case. Made in the USA.
Microsolv Technology Corporation Caps, Screw Top, with Beige Silicone Rubber / White PTFE ultra-pure Septa, fitted in "knurled", polypropylene, Blue Caps with 6mm holes. For use with 9-425 thread, 12x32mm autosampler vials. 100/PK.
Larger, 6mm hole in the cap provides a larger target area for autosamplers that might have difficulty and may strike the cap edge of smaller hole caps, during injection.
Microsolv Technology Corporation Caps, Snap Top, with 0.04" thick, White Silicone Rubber / Yellow PTFE Pre-Slit (Star Shape) Septa, fitted in smooth, polyethylene, Light Blue Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 100/PK.
Ultra-low Bleed Septa provide less extractables than most septa and is recommended for LCMS. The star shaped (*) slit offers a much greater target area for an autosampler needle to penetrate the septa and offers minimal resistance. It may not reseal as well as other Pre-Slit Septa.
Microsolv Technology Corporation Caps Screw Top Preslit Septac
Caps, Screw Top, with Silicone Rubber / PTFE Pre-Slit Septa, bonded in knurled, polypropylene, White Caps. For use with 9-425mm thread, 12x32mm autosampler vials. MicroSolv Brand. 100/PK
Microsolv Technology Corporation Cap Hs Scrw Mag 55S Sil/Ptfe
Caps, Headspace, Screw Top, with White Silicone Rubber / Blue PTFE Temperature Resistant Septa, fitted in Steel, Magnetic, Silver Caps with 8mm center holes. For use with 18mm Precision Thread Headspace Vials. MicroSolv Brand. 100/PK.
Microsolv Technology Corporation Epp Vials Wo Amber Lc Clean
Vial & Cap Kit Includes 100 EA 2ml, Screw Top, Amber Deactivated Autosampler Vials with Write-On Patch and fill lines and 100 EA matching Screw Caps with Clear Silicone Rubber / Clear Tefzel, ultra-pure Septa, fitted in the Blue Caps. MicroSolv Brand Easy Purchase Pack. 1/PK.
Trajan Scientific L-MARK® Brand Amber Vial Standard 13mm Screw 4mL 15x45mm, 100 Pack
Vial, Screw, 4-mL, 15x45mm, Amber, needs 13-425 Cap, 100 Pack
Microsolv Technology Corporation Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit (X Shape) Septa, fitted in smooth, polyethylene, Green Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 100/PK.
Soft-Guard™ Septa provide easier penetration of autosampler needles and better resealing than other brands, for longer instrument up-time and fewer missed injections. Pre-Slit Septa are normally recommended for Waters Alliance and Acquity instruments. X Shape Pre-Slit provides a greater target area for needles and are easier to penetrate but do not reseal as well as single slit septa.
MSC Holo-Krome 77100 M5x0.80 Metric Coarse Hex Socket Cap Screw Austenitic Grade A4 Stainless Steel, Uncoated, 25mm Length Under Head
Holo-Krome 77100 M5x0.80 Metric Coarse Hex Socket Cap Screw Austenitic Grade A4 Stainless Steel, Uncoated, 25mm Length Under Head
Microsolv Technology Corporation Caps, Snap Top, with Butyl Rubber / Tefzel Septa, fitted in smooth, soft polyethylene, Natural Transparent Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 1000/CS.
Soft polyethylene caps are more pliable than other Snap Caps and are easier to place on the vial. Popular choice when using a large number of caps at one time. These caps may not seal as well as other Snap Caps and should be used with sample solvents with low volatility. Butyl Rubber with Tefzel is a lower cost Septa but inert enough for most applications.
Microsolv Technology Corporation Caps, Screw Top, with Silicone Rubber / PTFE Partial Pre-Slit (Y Shape) Septa, fitted in "knurled" polypropylene, Translucent Caps. For use with 9-425 thread, 12x32mm autosampler vials. Excellent for GC and GCMS. 100/PK.
Partial slit, only in the rubber leaves PTFE to form an evaporation barrier making this a good choice for volatile samples when an autosampler requires a pre-slit Septa.Y shaped partial slit allows for better "resealing" of rubber after initial injection.