I suspect there will be no other solution to my problem, but I thought I would ask. I have a new project to find a better method to create a sorbent tube assembly. The basic construction is as follows.
800mm length of Ø0.063"ID x Ø0.083"OD tube.
This tube is filled with a sorbent (By diluting it into acetone then feeding it in.
To stop the sorbent from exiting the other end, a small "Stopper" is placed inside. This stopper is the issue. Currently it is a very thin tube (Ø0.008"ID x Ø0.016"OD) with a thin wire (Ø0.005") inserted into the stopper to act as friction so it stays in place.
This stopper is really awkward to size correctly and make. I was thinking of finding some sort of permiable mateiral that can be usd as a stopper instead of this thin tube. Is there a permeable/semi permeable material that can be drawn/made into something that can fit inside a Ø0.063" bore?
As I said, I think the solution in place is the only possibility, but thought I would ask.

800mm length of Ø0.063"ID x Ø0.083"OD tube.
This tube is filled with a sorbent (By diluting it into acetone then feeding it in.
To stop the sorbent from exiting the other end, a small "Stopper" is placed inside. This stopper is the issue. Currently it is a very thin tube (Ø0.008"ID x Ø0.016"OD) with a thin wire (Ø0.005") inserted into the stopper to act as friction so it stays in place.
This stopper is really awkward to size correctly and make. I was thinking of finding some sort of permiable mateiral that can be usd as a stopper instead of this thin tube. Is there a permeable/semi permeable material that can be drawn/made into something that can fit inside a Ø0.063" bore?
As I said, I think the solution in place is the only possibility, but thought I would ask.
