Tubing and Vials
Tubing
It is recommended to use inert tubing to prevent odor contamination. PTFE (commonly known by its trade name, Teflon) is the most widely used and cost-effective option for inert tubing.
The front panel push-in connectors are designed for 1/8" outer diameter (OD) tubing, which can be used throughout the entire setup. If using 1/16" OD tubing, it can be snugly nested inside 1/8" OD tubing with a 1/16" inner diameter (ID).
When cutting the tubing, aim to make a clean, straight cut using a sharp knife. Alternatively, a dedicated plastic tubing cutter can be used for greater precision. The goal is to make sure the cut end is square and flat to achieve a proper seal when inserted into the flat-bottom receiving port.
Fittings
PEEK flangeless fittings are used to connect tubing to manifolds and end-valves, offering a simple, secure, and durable connection.
Be sure to use the appropriate nuts and ferrules that match the outer diameter (OD) of your tubing.
Connection Instructions
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Slide the flangeless nut onto the tubing, ensuring the threads face the end to be connected.
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Place the flangeless ferrule over the tubing, with the tapered side facing the nut.
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Insert the tubing (with ferrule) into the receiving port. Hold it firmly in place towards the flat-bottom end of the port and tighten the nut finger-tight.
Vials
Septa vials are used to store the odorants. The septum (the sealing disc) maintains a gas-tight environment, preventing odor leakage while allowing volatile compounds to accumulate in the vial’s headspace.
To insert tubing into the vial, the septum must be perforated. This can be done using a needle or a punch tool, allowing for a snug fit that prevents leaks.
We recommend to use a 3 mm punch for 1/8" tubing and a 16G needle for 1/16" tubing.
Make sure to not immerge any of the vial tubes in the odor liquid.