There is a way to use PEG solutions of various concentrations to control the
relative humidity. I want to hold some stuff at a particular RH/water
potential value by having it sit in a sealed container whose atmosphere is
at equilibrium with the PEG solution below. (Actually, I want to do a bunch
of these at different RH/water potential values.) Saturated salt solutions
don't give the values I want. Can anyone point me to the right recipe?
Thanks.
--Gini Berg
To me it seems that all sciences are vain and full of errors that are not
born of experience, mother of all certainty.
--Leonardo da Vinci (1452-1519)
Virginia Berg (bergv at uni.edu)
Biology Department 0421
University of Northern Iowa
Cedar Falls, IA 50614
(319) 273-2770 (phone), 273-2893 (fax)
http://www.uni.edu/berg
