Dear listers,
I want to determine the amount of exchangeable protones in fulvic 
acids by exchange reactions with deuterium. Has anybody some 
experience which conditions or exchange times are suitable. Or can 
anybody help with some references.
All the best
gerd 



Dr. Gerd Gleixner
Lehrstuhl fuer Allgemeine Chemie und Biochemie
TU-Muenchen
Voettingerstasse 40
85350 Freising-Weihenstephan
Deutschland
Tel. 0049 8161 714353