Chromatography Autosampler Vial Caps Only
Trajan Scientific L-MARK Brand Cap Screw 18mm Magnetic SPME MicroCenter Septa, 100 Pack
L-MARK Brand, Cap, Screw, Magnetic, SPME Micro Center Septa, PTFE/Silicone, 18mm, 100 Pack. Made in the USA.
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, Crimp, Magnetic, Gold, PTFE/Silicone, 11 mm, Case of 1000
L-MARK Brand Cap, Crimp, Magnetic, Gold, PTFE/Silicone, 11 mm, 1000/case. Made in the USA.
Chemglass Life Sciences Aluminum Seal, Pressure Release, Silver, 20mm, PTFE/Silicone Septa
Aluminum Seal, Pressure Release, Silver, 20mm, PTFE/Silicone Septa. Pressure release seals are designed to open when the internal pressure exceeds 3.00.5 bar.
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. 100/PK.
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, 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. This is our Snap Cap.
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. 1000/CS.
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 an Open Hole. "knurled", polypropylene, Blue Caps. Septa are sold separately and must be inserted manually. For use with 9-425mm thread, 12x32mm autosampler vials. 1,000/CS.
Caps, Screw Top, with an Open Hole. "knurled", polypropylene, Blue Caps. Septa are sold separately and must be inserted manually. For use with 9-425mm thread, 12x32mm autosampler vials. 1,000/CS.
Microsolv Technology Corporation Caps, Screw Top, with Red Rubber / Mylar Septa, fitted in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. 100/PK.
This septa was designed for specific, older instruments such as Agilent 1050 and to provide extra cleaning when "wiping" a needle. Also provides a small degree of better resealing after injection compared to Silicone Rubber / PTFE Septa.
Microsolv Technology Corporation Caps, Screw Top, with Silicone Rubber / PTFE Pre-Slit Septa, fitted in "knurled", polypropylene, Black Caps. For use with 8-425mm thread, 12x32mm autosampler vials. 100/PK.
Wider hole for use with narrow mouth, 2ml vials. Wider hole provides a larger target area for the autosampler needle during injection.
Microsolv Technology Corporation Caps, Screw Top, with Silicone Rubber / PTFE Septa fitted in "knurled", polypropylene, White Caps. For use with 10-425mm thread, 12x32mm wide mouth autosampler vials. 100/PK
Caps, Screw Top, with Silicone Rubber / PTFE Septa fitted in "knurled", polypropylene, White Caps. For use with 10-425mm thread, 12x32mm wide mouth autosampler vials. 100/PK
Microsolv Technology Corporation Caps, Screw Top, with White Silicone Rubber / Natural PTFE Septa, fitted in "knurled", polypropylene, Yellow Caps. For use with 9-425mm thread, 12x32mm autosampler vials. 1000/CS.
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, Snap Top, with Silicone Rubber / PTFE Septa, fitted in smooth, polyethylene, Red Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 100/PK.
This cap is our original Snap Cap and has been on the market for 30 years.