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[Q] cold trap

Gerald L. Hurst glhurst at onr.com
Wed Sep 13 11:38:58 EST 1995

In article <rose.486.3056EFC4 at alf1.ngate.uni-regensburg.de>, 
rose at alf1.ngate.uni-regensburg.de (Andreas Rose        t3077) says:
>I study the host-finding of a blood-sucking bug (Reduviidae - 
>I want to collect odors from the headspace of a sleeping person and see 
>whether these are attractive in a behavioral test. 
>For the collection of the odors, I want to construct a cold trap. 


A dry ice-acetone trap should do the job. I would not use liquid
nitrogen because it is cold enough to condense a trap full of
liquid oxygen and solid CO2.


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