Markes Tube Connection Unions
Tube Connection Unions
Standard ¼-inch o.d. tubes can be connected in series using ¼-inch–¼-inch stainless steel unions fitted with the same one-piece PTFE ferrules used in ¼-inch storage caps. After sampling, the tubes are disconnected, capped and stored individually prior to analysis.
Linking sorbent tubes in series allows the use of sorbent combinations that cannot be packed into a single tube. It also completely eliminates the risk of higher-boiling analytes migrating to the stronger sorbents during sample storage.
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