A NEW CATALYTIC COLORIMETRIC REACTION FOR THE DETERMINATION OF SUBMICROGRAM AMOUNTS OF MANGANESEALEXIEV AA; MUTAFCHIEV KL.1983; ANALYTICAL LETTERS; ISSN 0003-2719; USA; DA. 1983; VOL. 16; NO 10A; PP. 769-783; BIBL. 9 REF.Article

DETERMINATION OF SUBNANOGRAM AMOUNTS OF COBALT THROUGH ITS CATALYTIC ACTION ON OXIDATION OF CATECHOL BY HYDROGEN PEROXIDEALEXIEV AA; ANGELOVA MG.1980; MIKROCHIM. ACTA; AUT; DA. 1980; VOL. PT.; NO 3/4; PP. 187-194; BIBL. 11 REF.Article

DETERMINATION OF SUBNANOGRAM AMOUNTS OF COBALT THROUGH ITS CATALYTIC ACTION ON OXIDATION OF CATECHOL BY HYDROGEN PEROXIDEALEXIEV AA; ANGELOVA MG.1980; MIKROCHIM. ACTA; ISSN 0026-3672; USA; DA. 1980; VOL. 2; NO 3-4; PP. 187-194; ABS. GER; BIBL. 11 REF.Article

AN UNUSUAL CASE OF ACTIVATION OF HOMOGENEOUS CATALYTIC ANALYTICAL REACTIONS: 1,10-PHENANTHROLINE AS AN ACTIVATOR OF THE CATALYTIC ACTION OF MN(II) ON THE OXIDATION OF P-PHENETIDINE BY POTASSIUM PERIODATEALEXIEV AA; MUTAFTCHIEV KL.1982; MIKROCHIM. ACTA; ISSN 0026-3672; USA; DA. 1982; VOL. 1; NO 5-6; PP. 441-450; ABS. GER; BIBL. 17 REF.Article

A NOVEL CATALYTIC COLORIMETRIC METHOD FOR THE DETERMINATION OF NANOMOLAR CYSTEINE CONCENTRATIONS IN AMINO-ACID MIXTURESALEXIEV AA; ANGELOVA MG.1983; MIKROCHIMICA ACTA; ISSN 0026-3672; USA; DA. 1983; VOL. 2; NO 5-6; PP. 369-379; ABS. GER; BIBL. 20 REF.Article

CATALYTIC METHOD FOR DETERMINATION OF MICRO AMOUNTS OF GOLD IN IRON ORESJELIAZKOWA BG; BONTCHEV PR; ALEXIEV AA et al.1972; MIKROCHIM. ACTA; AUTR.; DA. 1972; NO 6; PP. 896-901; ABS. ALLEM.; BIBL. 10 REF.Serial Issue

A NEW CATALYTIC REACTION FOR DETERMINATION OF NANOGRAM AMOUNTS OF COPPER.ALEXIEV AA; BONTCHEV PR; GANTCHEVA S et al.1976; MIKROCHIM. ACTA; AUTR.; DA. 1976; NO 5-6; PP. 487-495; ABS. ALLEM.; BIBL. 10 REF.Article

SIMPLE AND SENSITIVE CATALYTIC METHOD FOR DETERMINATION OF COPPER IN BLOOD SERUM.ALEXIEV AA; BONTCHEV PR; BARDAROV V et al.1976; MIKROCHIM. ACTA; AUTR.; DA. 1976; NO 5-6; PP. 535-542; ABS. ALLEM.; BIBL. 20 REF.Article

A SIMPLE AND SENSITIVE CATALYTIC METHOD FOR DETERMINATION OF THE TOTAL IRON BINDING CAPACITY OF BLOOD SERUMALEXIEV AA; BONTCHEV PR; KHRISTOVA M et al.1979; MIKROCHIM. ACTA; AUT; DA. 1979; VOL. 1; NO 3-4; PP. 165-174; ABS. GER; BIBL. 13 REF.Article

A CATALYTIC METHOD FOR DETERMINATION OF TRACE AMOUNTS OF IRON IN BIOLOGICAL MATERIALALEXIEV AA; RACHINA V; BONTCHEV PR et al.1979; ANAL. BIOCHEM.; USA; DA. 1979; VOL. 99; NO 1; PP. 28-32; BIBL. 4 REF.Article