> TFA must
>also form a high-boiling azeotrope with water as 0.1% TFA becomes more
>concentrated as you evaporate it, as noted earlier today by Andy Alpert.
I would like to know more about this idea, because the experience of some
colleagues points toward TFA (0.05% - 0.2%) "evaporating" from ACN:H2O
mixes. Are both a possibility, or is there some study that can clarify this
issue?
Bill Chestnut
Pharmaceutical Sciences
Campbell University
Buies Creek NC