Chromatography Autosampler Vial Caps Only
Trajan Scientific L-MARK Brand Cap, Screw, Black, Solid Top, 15-415, PP, PTFE/Silicone, 100 Pack
L-MARK Brand, Cap, Screw, Black, Solid Top, 15-415, Polypropylene, Polypropylene, With PTFE/Silicone liner, 100 Pack. Made in the USA.
Trajan Scientific L-MARK Brand Cap, Screw, Black, 13-425, Solid Top, PP, With PTFE/silicone liner, 100 Pack
L-MARK Brand, Cap, Screw, Black, 13-425, Solid Top, Polypropylene, With PTFE/White silicone liner, 100 Pack. Made in the USA.
Trajan Scientific L-MARK Brand Cap, Screw, Blue, Pre-slit Red PTFE/White Silicone, 9mm, Case of 1000
L-MARK Brand, Cap, Screw, Polypropylene, Blue, Pre-Slit Red PTFE/White Silicone, 9 mm, Press fit, Case of 1000. Made in the USA.
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, 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, Screw Top, with Silicone Rubber / PTFE, ultra-pure, Pre-Slit Septa, fitted in "knurled", polypropylene, Light Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. 1000/CS.
Highest purity Septa on the market, with no color added to the Rubber or Teflon for improved purity. Good choice for LCMS & LCMS/MS.Pre-slit for easy penetration by autosampler needles and recommended for Waters Alliance, Acquity™ and all other autosamplers that require Pre-Slit Septa.
Microsolv Technology Corporation Caps, Headspace, Crimp Top, with Blue Silicone Rubber / White PTFE, High Purity Septa, fitted in Aluminum, Silver Caps with 10mm center holes. For use with 20mm Crimp Top Headspace Vials. 100/PK.
High Purity Silicone Rubber / PTFE Septa with Durometer of 35 Shore A, (hardness) and 3.0mm thick with Ultra Low Bleed Rubber that is made with a proprietary process for ultra durability, purity and low extractables. Excellent choice for highly sensitive analyses. The very low Durometer means that this is a softer Septa and therefore better with easier penetrations by autosampler needles.Wide temperature range from -60⁰ to 200⁰C.
Microsolv Technology Corporation Caps, Screw Top, with Silicone Rubber / Polypropylene Septa, in "knurled", Polypropylene Blue Caps. 1000/CS.
These unique caps can be used for almost any sample but are designed for Polyfluoroalkyl Substances (PFAS) testing in our autosampler vials. The silicone rubber (for optimal sealing), and Polypropylene fitted Septa (for inertness) are excellent for chromatography. These caps do not contain PTFE like most other autosampler vial caps. Use with AQ™ Brand or RSA™ brand 9mm screw thread autosampler vials for best performance and sealing.
Microsolv Technology Corporation Caps, Screw Top, with Silicone Rubber / PTFE Septa, fitted in "knurled", polypropylene, Black Caps. For use with 13-425mm thread, 15x45mm autosampler vials. 1000/CS.
Economical Cap with Septa for use in Older Waters instruments that accommodate 4ml autosampler vials.
Microsolv Technology Corporation Caps, Screw Top, with Soft-Guard, White Silicone Rubber / Red PTFE Septa, bonded in "knurled", polypropylene, Yellow Caps. For use with 9-425mm thread, 12x32mm autosampler vials. 1000/CS
Soft-Guard™ Septa are easier to penetrate by autosampler needles, and re-seals better than other Caps on the market. This provides longer instrument up-time, fewer missed injections and more consistent data. Use for HPLC, GC, LCMS or GCMS. Click HERE for more information about Soft-Guard™ Septa Technology.
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, Snap Top, with Silicone Rubber / PTFE Pre-Slit Septa, fitted in smooth, polyethylene, Green Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 100/PK.
This is one of the snap caps on the market and has been available for over 25 years. Pre-Slit septa are normally recommended for Waters Alliance instruments.
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, Screw Top, with White Silicone Rubber / Natural PTFE Septa, fitted in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. 100/PK.
This is our most economical, lowest cost Screw Cap for Autosampler Vials. Natural PTFE is as equally inert and durable as Red PTFE, but no dyes have been added.
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.