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Subject:
dialysis tubing
Category: Science Asked by: blochee-ga List Price: $10.00 |
Posted:
05 Jun 2004 21:13 PDT
Expires: 05 Jul 2004 21:13 PDT Question ID: 356982 |
I want a list of all the liquids that can permeate through dialysis tubing. |
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There is no answer at this time. |
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Subject:
Re: dialysis tubing
From: touf-ga on 06 Jun 2004 09:42 PDT |
Unfortunately, this is not a simple question to answer, because there are dozens and dozens of different types of dialysis tubing out there. Dialysis tubing is basically a porous tube, with very small pores which allow molecules of only a certain size to pass through. Each type/brand of tube has its own cutoff rating, which is a rating given that determines what size molecules can pass through. For example, Spectrapore #6 dialysis tubing has a cutoff of 1,000 Daltons, meaning that a 1,000 Dalton protein will be retained by the tubing but that smaller solutes will pass through the tubing. Look at the cutoff rating of your dialysis tube. Any liquid whose solutes/molecules are smaller than your pore size will permeate the tube. |
Subject:
Re: dialysis tubing
From: touf-ga on 06 Jun 2004 09:45 PDT |
I should mention, though, that typically, when we're talking about dialysis tubing, we're talking about water. Water passes through dialysis tubing, and it carries with it urea and other waste products from the blood stream into the dialysis machine. |
Subject:
Re: dialysis tubing
From: synarchy-ga on 07 Jun 2004 16:31 PDT |
You should also be careful - many liquids will dissolve common dialysis tubing (ie acetone, methanol). |
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