ION-EXCHANGE SEPARATION OF MICROQUANTITIES OF FE(II) FROM MACROQUANTITIES OF FE(III) BY MEANS OF COMPLEXON III.DODOVA LI; BALOUSHEV BS.1976; C.R. ACAD. BULG. SCI.; BULG.; DA. 1976; VOL. 29; NO 4; PP. 543-545; BIBL. 9 REF.Article

DETERMINATION OF PURITY OF ION EXCHANGE RESINS BY MEANS OF NONDESTRUCTIVE NEUTRON-ACTIVATION ANALYSISMARICHKOVA LM; DONEV IY; BALOUSHEV BS et al.1975; C.R. ACAD. BULG. SCI.; BULG.; DA. 1975; VOL. 28; NO 3; PP. 367-370; BIBL. 6 REF.Article

DETERMINING TRACES OF SODIUM IN CERTAIN ANIONITESDONEV IY; BALOUSHEV BS; MARICHKOVA LM et al.1974; C.R. ACAD. BULG. SCI.; BULG.; DA. 1974; VOL. 27; NO 11; PP. 1549-1552; BIBL. 6 REF.Article