Lipoic acid analogs and L-tryptophan do not interfere with the assay of biotin by HPLC/avidin-binding assay
Zempleni J, Mock DM, Stratton SL, McCormick DB. Lipoic acid analogs and L-tryptophan do not interfere with the assay of biotin by HPLC/avidin-binding assay. FASEB Meeting. 1996; 10:A802.