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Hamilton

Hamilton introduces a new headspace syringe featuring a unique Glue-Free (GF) needle attachment in combination with the well-known High Dynamic (HD) plunger designed specifically for PAL COMBI–xt Headspace Autosamplers.

Conventional headspace syringe needles are attached to the syringe glass body using glue (cement). Common problems are detached needles or ghost peaks due to low chemical inertness of the cement to solvents or limited resistance to higher temperature. Hamilton addresses these problems with the new Glue-Free High Temperature (HDHT) headspace syringe. Modern GC headspace analysis requires injecting over large temperature ranges. Ordinary headspace syringes on the market use a rubber O-ring sealed plunger which has a limited sealing performance at high temperatures due to varying thermal expansion between the different materials. The high dynamic HD-type syringe employs a unique spring in the plunger tip which compensates for the materials’ different expansion coefficients, creating a better seal over a larger temperature range, improving syringe lifetime. Fluid paths of Hamilton HDHT headspace syringes: Pure PTFE, inert glass and inert stainless steel.

The High Dynamic (HD) plunger is optimized for high throughput and has set the new standard for headspace syringes.

Benefits of Hamilton HDHT headspace syringes:

- Glue-Free needle attachment is chemically inert, eliminating detached needles due to contact with organic, and chlorinated solvents - Glue-Free needle attachment minimizes ghost peaks - Temperature stability up to 200°C means a wider range of sample components can be analyzed - Patented spring-in-plunger design creates a dynamic seal between the plunger tip and the inside of the glass barrel for leak-free operation - Excellent performance over a large temperature range up to 200°C - Increased lifetime over traditional headspace syringes - Improved accuracy and reproducibly of GC headspace analysis This syringe has also been nominated by the German Design Council - one of the world's leading centers of expertise on design - for the German Design Award 2017 in the "Excellent Product Design" category. Read all about it on our Blog.