Chromatography Autosampler Vial Caps Only
Microsolv Technology Corporation Caps, Screw Top, with PTFE, ultra-pure Septa, fitted in "knurled", polypropylene, Black Caps. For use with 9-425mm thread, 12x32mm autosampler vials. 100/PK
This PTFE (only) Septa is for single injections or non-volatile samples as it will not reseal.
Microsolv Technology Corporation Caps, Screw Top, with Tan Silicone Rubber / PTFE Pre-Slit Septa, bonded in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials, 1000/CS.
Pre-slit for easy penetration by autosampler needles and to prevent "Septa Plunge". Recommended for Waters Alliance & Acquity instruments. Ultra-pure Silicone Rubber is a natural Tan color and will not extract pigments. Use this Cap for excellent results in LCMS/MS. Compare to “HPLC Certified” brands.
Microsolv Technology Corporation Caps, Snap Top, with 0.04" thick, White Silicone Rubber / Natural PTFE Septa, fitted in smooth, polyethylene, Natural TransparentCaps. 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, Screw Top, with Blue Silicone Rubber / White PTFE Pre-Slit 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 1.3mm thick, Silicone Rubber / PTFE Septa, fitted in smooth, soft polyethylene, Natural Translucent 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.
Microsolv Technology Corporation Caps, Crimp Top, with Red Rubber / PTFE Septa, fitted in aluminum, Red Caps. For use with 11mm Crimp or Snap Top, 12x32mm autosampler vials. 1000/CS.
The Rubber is softer than Natural Red Rubber and provides better sealing after injection. Great for GC.
Microsolv Technology Corporation Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit Septa, fitted in smooth, polyethylene, Red 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.
Microsolv Technology Corporation Caps, Crimp Top, with Soft-Guard, White Silicone / Red PTFE Septa, fitted in aluminum, Silver Caps. For use with 11mm Crimp or Snap Top, 12x32mm 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. Excellent for HPLC when Crimp Caps are required.
Microsolv Technology Corporation Caps, Headspace, Crimp Top, with White Silicone Rubber / Blue PTFE Septa, fitted in Steel, Magnetic, Gold Caps with 8mm center holes. For use with 20mm Crimp Top Headspace Vials. 100/PK.
Compatible with SPME, Solid Phase Micro-Extraction capable autosamplers including CTC Pal. Silicone Rubber / UltraClean PTFE Septa is 55⁰ Shore A (hardness) and is 1.5mm thick. Use with SPME Vials.
Microsolv Technology Corporation Caps, Crimp Top, with 0.05'' thick, Silicone Rubber / PTFE, ultra low bleed Septa, fitted in aluminum, Silver Caps. For use with 11mm Crimp or Snap Top, 12x32mm autosampler vials. 1000/CS.
Ultra low bleed Septa is a popular choice for GC and when siloxanes from silicone rubber may be a problem but you still want to use PTFE. Also used in HPLC when a Crimp Cap is required.
Microsolv Technology Corporation Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Septa, fitted in smooth, polyethylene, Black 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.
Microsolv Technology Corporation Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit Septa, fitted in smooth, polyethylene Blue 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.
Microsolv Technology Corporation Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit (X Shape) Septa, fitted in smooth, polyethylene, Natural Transparent 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.
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.
Microsolv Technology Corporation Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit (X Shape) Septa, fitted in smooth, polyethylene, Light Blue 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.