Hi I am looking for a method to prepare H2Folate by reduction of folic acid. I am using a dithionite method (old) but it doesn't seem to be working... Any info would be sincerely appreciated! -- Fourie Joubert Department of Biochemistry University of Pretoria fourie at scientia.up.ac.za http://suntiger.ee.up.ac.za/biodocs/home.html +27-12-420-2011