... 0037-9646 / 91 I $2.00 + 0.00 0 1991 Comlt6 van Beheer van het Bulletin VZW ... Add 10 mL Tfa:CH C1 (50:50 vol) and evaporate after 2 h. Dissolve the residue in 50 mL 6H 81 ... Belges 99, 361-377 (1990) and references cited therein.; Callens, R. and Anteunis, M.; Protein Res. ...