Chromatography Autosampler Vial Caps
Microsolv Technology Corporation Caps, Snap Top, with 0.04" thick, White Silicone Rubber / Natural PTFE Pre-Slit Septa, fitted in smooth, polyethylene, Yellow Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 1000/CS.
Pre-Slit Septa are normally recommended for Waters Alliance and Acquity instruments.Natural Septa does not have any color pigment and will not introduce extractables.
Microsolv Technology Corporation Caps, Headspace, Crimp Top, with Grey Butyl Rubber / Partially Laminated PTFE Septa, fitted in Aluminum, Silver Pressure Relief Caps with 8mm center holes. Pharma-Fix. For use with 20mm Crimp Top Headspace Vials. 100/PK.
Shaped, Butyl Rubber with Durometer of 50 Shore A, (hardness) and 3.0mm thick. Partially laminated with PTFE only on the light grey side of the Septa that faces the sample area. Butyl Rubber facing the glass vial provides a very good seal, due to its elasticity. Combining inertness of PTFE and elasticity of Butyl Rubber. This type of Septa is commonly known as Pharma-Fix™ and is temperature resistant from -40⁰ to 120⁰C. Clear lacquered Caps have score lines that will break open at 3.0 +/ 0.5 Bar, for safety. Low cost for budget minded laboratories.
Microsolv Technology Corporation Caps, Headspace, Crimp Top, with Grey Butyl Rubber / Partially Laminated PTFE Septa, fitted in Aluminum, Silver Caps with 10mm center holes. Pharma-Fix. For use with 20mm Crimp Top Headspace Vials. 100/PK.
Shaped, Butyl Rubber with Durometer of 50 Shore A, (hardness) and 3.0mm thick. Partially laminated with PTFE only on the light grey side of the Septa that faces the sample area. Butyl Rubber facing the glass vial provides a very good seal, due to its elasticity. Combining inertness of PTFE and elasticity of Butyl Rubber. This type of Septa is commonly known as Pharma-Fix™ and is temperature resistant from -40⁰ to 120⁰C.
Microsolv Technology Corporation Caps, Snap Top, with Red PTFE / White Silicone Rubber / Red PTFE Septa, fitted in smooth, polyethylene, Red Caps. For use with 11mm, 12x32mm Snap Top 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, 40mil Septa, bonded in wide mouth, "knurled", polypropylene, Black Caps. For use with 10-425mm threads, 12x32mm autosampler vials. 1000/CS.
Pre-slit for easy penetration by autosampler needles. This Septa is slightly thinner than most Septa to enhance the ease or needle penetration. 40mil equals 1.016mm.
Microsolv Technology Corporation Caps, Screw Top, with Natural Rubber / TFE Septa, fitted in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. 100/PK.
Natural Rubber does not contain siloxanes like Silicone Rubber. TFE is similar to PTFE when comparing inertness.
Microsolv Technology Corporation Caps, Screw Top, Solid, with a Red-Orange Silicone Rubber / TEF liner, in "knurled", closed Blue Caps. For use with 9-425mm thread,12x32mm autosampler vials. 100/PK.
Silicone Rubber with TEF liner is inert lowers the cost. Liner is 53° Shore D, 0-2mm. Solid top turns autosampler vials into storage vials.
Microsolv Technology Corporation Caps, Snap Top, with Red Rubber / PTFE Septa, fitted in smooth, polyethylene, Green Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 1000/CS.
Red Rubber / PTFE is often the choice of labs that do not want to analyze with silicone rubber in the Septa and want a lower cost cap.
Microsolv Technology Corporation Caps, Screw Top, with Orange Red Rubber / PTFE Septa, bonded in "knurled", polypropylene, Green Caps. For use with 9-425mm thread, 12x32mm autosampler vials. 100/PK.
Orange-Red Silicone Rubber is more economical White Silicone Rubber and softer than Natural Red Rubber which is better for your autosamplers, minimizing damaging needles and injections systems.
Chemglass Life Sciences Cap, Chem Snap, 11mm, Green, PTFE/Silicone Septum
Cap, Chem Snap, 11mm, Green, PTFE/Silicone Septum. Chem Snap Caps™ may be snapped on and off by hand which eliminates the need for metal crimping and decapping tools, thus reducing potential hazards due to sharp aluminum edges. Large opening provides greater target area for needle penetration. Snap caps are color coded for easy sample identification.
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. 1000/CS.
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, Snap Top, with 1.0mm thick, Orange Rubber / Transparent TEF Septa, fitted in Smooth, soft polyethylene, Blue Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 100/PK.
Caps, Snap Top, with 1.0mm thick, Orange Rubber / Transparent TEF Septa, fitted in Smooth, soft polyethylene, Blue Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. 100/PK.
Microsolv Technology Corporation Caps, Screw Top, with Silicone Rubber / PTFE Septa, bonded in wide mouth, "knurled", polypropylene, Black Caps. For use with 10-425mm threads, 12x32mm autosampler vials. 1000/CS.
Caps, Screw Top, with Silicone Rubber / PTFE Septa, bonded in wide mouth, "knurled", polypropylene, Black Caps. For use with 10-425mm threads, 12x32mm autosampler vials. 1000/CS.