TY - JOUR AU - Gavazov, Kiril Blazhev AU - Racheva, Petya AU - Lekova, Vanya Dimitrova AU - Dimitrov, Atanas Nikolov TI - Vanadium (IV and V) speciation with a catechol derivative and tetrazolium salt JO - Journal of the Iranian Chemical Research VL - 1 IS - 2 SP - 113 EP - 121 PY - 2008 DO - ER -