8 replies to this topic

[tana_jung]

I worked my reseach about antimicrobial susceptibility testing..

So I used many many tubes with wrapping parafilm on the caps..

when I finished my work, I steriled (before washing) tubes and didn't remove parafilm on tubes..

Now my caps of tubes are covered with parafilm..

I would like to remove it...

what should I do??

please help me!!!  



Tan"

ps.. I try to use detergent wash it, but it's difficult to wash..

[phage434]

If these are glass tubes, then chloroform will likely dissolve the parafilm.  If they are plastic, the chloroform might also dissolve the tubes.  A wash with a series of chloroform baths will remove most of the residue, I would think.  I haven't tried this.  Xylene, acetone, MEK might also work.  Do this in a fume hood, of course.

[GeorgeWolff]

start over

[gebirgsziege]

You can easily peel melted parafilm off glass tubes.....a lot of work, though.

[HomeBrew]

Burn it off?

[GeorgeWolff]

Don 't think so Homebrew.  It will only char.  Acetone or xylene would prob work - consider paraffin as the substance.

[HomeBrew]

Good point.

[tana_jung]

Thanks in advance for your great answers..

but I would like to remove parafilm on plastic cap..

i'm not sure, plastic cap will resist to acetone, xylene and chloroform???

[phage434]

Polypropylene is resistant.  Polystyrene, polyethylene, are not.  You're the scientist, and have many of these.  Do the experiment.