ATOMIC-ABSORPTION SPECTROPHOTOMETRIC DETERMINATION OF BERYLLIUM IN BETA -AL₂O₃ CERAMICS.HAVEZOV I; TAMNEV B.1978; Z. (FRESENIUS') ANAL. CHEM.; DTSCH.; DA. 1978; VOL. 290; NO 4; PP. 299-301; ABS. ALLEM.; BIBL. 8 REF.Article

ELECTROTHERMAL ATOMIZATION USING THE L'VOV PLATFORM. DETERMINATION OF TRACES OF LEAD, CADMIUM, MANGANESE AND COPPER IN A NACL MATRIXHAVEZOV I; IVANOVA E.1983; FRESENIUS ZEITSCHRIFT FUER ANALYTISCHE CHEMIE; ISSN 0016-1152; DEU; DA. 1983; VOL. 315; NO 1; PP. 26-29; BIBL. 8 REF.Article

FLAMELESS ATOMIC ABSORPTION DETERMINATION OF BERYLLIUM IN AIR FILTERS.HAVEZOV I; TAMNEV B.1978; Z. (FRESENIUS') ANAL. CHEM.; DTSCH.; DA. 1978; VOL. 291; NO 2; PP. 127; BIBL. 4 REF.Article

SEPARATION OF TELLURIUM(IV) BY SOLVENT EXTRACTION METHODSHAVEZOV I; JORDANOV N.1974; TALANTA; G.B.; DA. 1974; VOL. 21; NO 10; PP. 1013-1024; ABS. ALLEM. FR.; BIBL. 2 P. 1/2Article

SOME ASPECTS OF THE EXTRACTION-FLAME ATOMIC ABSORPTION SPECTROMETRIC DETERMINATION OF COPPER, ZINC, NICKEL, COBALT, MANGANESE AND IRONHAVEZOV I; IVANOVA E; JORDANOV N et al.1979; IZVEST. KHIM.; BGR; DA. 1979; VOL. 12; NO 1; PP. 181-186; ABS. BUL; BIBL. 14 REF.Article

ATOMABSORPTIONS-SPEKTRALPHOTOMETRISCHE BESTIMMUNG VON NATRIUM UND MAGNESIUM IN BETA -ALUMINAT-MATERIALIEN = DOSAGE PAR SPECTROMETRIE D'ABSORPTION ATOMIQUE DE NA ET MG DANS LES MATERIAUX D'ALUMINATES BETATAMNEV BK; HAVEZOV I; IOTOVA LK et al.1974; Z. (FRESENIUS') ANAL. CHEM.; DTSCH.; DA. 1974; VOL. 271; NO 5; PP. 349-351; ABS. ANGL.; BIBL. 1 REF.Article

EINFLUSS DER FUELLUNG AUF DAS EXTRAKTIONSCHROMATOGRAPHISCHE VERHALTEN SELTENER ERDEN IM SYSTEM DI-(2-AETHYLHEXYL)-PHOSPHORSAEURE-CHROMOSORB-SALZSAEURE = L'INFLUENCE DU GARNISSAGE SUR LE COMPORTEMENT EN CHROMATOGRAPHIE D'EXTRACTION DES LANTHANIDES DANS LE SYSTEME DEHPA-CHROMOSORB-ACIDE CHLORHYDRIQUEVASILEV C; FAITONDJIEV L; HAVEZOV I et al.1974; MONATSH. CHEM.; OSTERR.; DA. 1974; VOL. 105; NO 6; PP. 1199-1205; ABS. ANGL.; BIBL. 12 REF.Article

COMPOSITION OF PHOSPHORIC ACID SOLUTIONS OBTAINED WHEN ORTHOPHOSPHORIC ACID IS USED AS SOLVENT FOR IRON-CONTAINING SAMPLES BY HEATING: THE INFLUENCE OF NITRIC ACID, SULPHURIC ACID AND IRON(III).JORDANOV N; NIKOLOVA B; HAVEZOV I et al.1978; TALANTA; GBR; DA. 1978; VOL. 25; NO 5; PP. 275-278; BIBL. 7 REF.Article

FLAMELESS ATOMIC-ABSORPTION DETERMINATION OF PHOSPHOROUS USING ZRC COATED GRAPHITE ATOMIZER TUBESHAVEZOV I; RUSSEVA E; JORDANOV N et al.1979; Z. (FRESENIUS') ANAL. CHEM.; DEU; DA. 1979; VOL. 296; NO 2-3; PP. 125-127; ABS. GER; BIBL. 10 REF.Article

Controlled-dispersion flow analysis devices with constant flow for flame atomic absorption spectrometryDETCHEVA, A; HAVEZOV, I.Analusis (Imprimé). 1994, Vol 22, Num 9, pp 453-457, issn 0365-4877Article

ZUM MECHANISMUS DER EXTRAKTION VON TELLUR(IV) AUS SALZSAUREM MEDIUM MIT GESAETTIGTEN ALIPHATISCHEN MONOKETONEN = SUR LE MECANISME D'EXTRACTION DE TE(IV) A PARTIR D'UN MILIEU CHLORHYDRIQUE AVEC DES MONOCETONES ALIPHATIQUES SATUREESHAVEZOV I; NURNBERG HW; STOEPPLER M et al.1972; Z. (FRESENIU'S) ANAL. CHEM.; DTSCH.; DA. 1972; VOL. 262; NO 3; PP. 179-183; ABS. ANGL.; BIBL. 24 REF.Serial Issue

Graphite-furnace atomization of phosphorusHAVEZOV, I; RUSSEVA, E.Analytica chimica acta. 1989, Vol 219, Num 1, pp 127-134, issn 0003-2670Article

Flame AAS determination of dopants and trace metal impurities in single crystals of potassium titanylphosphateEVANOVA, E; HAVEZOV, I.Talanta (Oxford). 1995, Vol 42, Num 9, pp 1259-1263, issn 0039-9140Article

Atomic absorption determination of traces of elements in ammonium perrhenate of high purityJORDANOV, N; HAVEZOV, I; BOZHKOV, O et al.Fresenius' Zeitschrift für analytische Chemie. 1989, Vol 335, Num 8, pp 910-913, issn 0016-1152Article

Extraction atomic absorption determination of traces of phosphorus in tungsten trioxideRUSSEVA, E; HAVEZOV, I; JORDANOV, N et al.Fresenius' Zeitschrift für analytische Chemie. 1985, Vol 321, Num 7, pp 677-678, issn 0016-1152Article

Study of some palladium-containing chemical modifiers in graphite furnace atomic absorption spectrometryHAVEZOV, I; DETCHEVA, A; RENDL, J et al.Mikrochimica acta (1966. Print). 1995, Vol 119, Num 1-2, pp 147-155, issn 0026-3672Article

Flame AAS determination of thallium in soilsTSAKOVSKI, S; IVANOVA, E; HAVEZOV, I et al.Talanta (Oxford). 1994, Vol 41, Num 5, pp 721-724, issn 0039-9140Article

Anion-exchange enrichment of thallium and cadmium prior to their flame atomic absorption spectrometric determination in soilsIVANOVA, E; TSAKOVSKI, S; GENTSCHEVA, G et al.Talanta (Oxford). 1996, Vol 43, Num 8, pp 1367-1370, issn 0039-9140Article

Atomic absorption spectrometry (AAS) : a versatile and selective detector for trace element speciationHAVEZOV, I.Fresenius' journal of analytical chemistry. 1996, Vol 355, Num 5-6, pp 452-456, issn 0937-0633Conference Paper

Electrothermal AAS determination of bismuth, antimony and tin in high-purity WO₃HAVEZOV, I; JORDANOV, N; ORTNER, H. M et al.Fresenius' journal of analytical chemistry. 1991, Vol 339, Num 12, pp 871-873, issn 0937-0633Article

Microtrace determination in high-purity selenium. III: Electrothermal AAS determination of As, Sb and Sn after matrix separation with hydrazineIVANOVA, E; VRACHEVA, N; HAVEZOV, I et al.Fresenius' Zeitschrift für analytische Chemie. 1988, Vol 330, Num 6, pp 516-517, issn 0016-1152Article

Microtrace determination in high-purity selenium. II: Trace separation and preconcentration by cation-exchangeIVANOVA, E; HAVEZOV, I; JORDANOV, N et al.Fresenius' Zeitschrift für analytische Chemie. 1987, Vol 327, Num 3-4, pp 359-360, issn 0016-1152Article

Microtrace determination in high-purity selenium. I: Flame AAS determination of some traces after their preconcentration on activated charcoalIVANOVA, E; VRACHEVA, N; HAVEZOV, I et al.Fresenius' Zeitschrift für analytische Chemie. 1986, Vol 323, Num 5, pp 477-480, issn 0016-1152Article

Extraction-flame atomic absorption determination of microtraces of Ag, Bi, Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn in ammonium sulphateIVANOVA, E; HAVEZOV, I; VRACHEVA, N et al.Fresenius' Zeitschrift für analytische Chemie. 1985, Vol 320, Num 2, pp 133-136, issn 0016-1152Article

Molekülabsorptionsspektrometrie mit elektrothermischer Verdampfung in einer Graphitrohrküvette. XII: Bestimmung von Cl-species in Selen und A^IIIB^V-Halbleitermaterialien = Spectrométrie d'absorption moléculaire par vaporisation électrothermique dans une cuvette de graphite. XII. Dosage des espèces chlorées dans le sélénium et les semiconducteurs type A^IIIB^V = Molecular absorption spectrometry with electrothermal vaporization in a graphite cuvette. XII. Détermination of chlore species in selenium and A^IIIB^V semiconductor materialsDITTRICH, K; BEYER, V; HAVEZOV, I et al.Analytica chimica acta. 1984, Vol 160, pp 323-327, issn 0003-2670Article