For the recuperation of the process of change for the people and with the people : Reform and revolution in South America: a forum on Bolivia and Venezuela = Pour la récupération du processus de changement, pour les gens et avec les gens : La réforme et la révolution en Amérique du Sud : un forum sur la Bolivie et le VenezuelaDialectical anthropology. 2011, Vol 35, Num 3, pp 285-293, issn 0304-4092, 9 p.Article

Some observations on the use of 1,4-dihydroxyanthraquinone as a fluorometric reagent for traces of lithiumCEBA, M. R; FERNANDEZ-GUTIERREZ, A; SANCHEZ, C. M et al.Microchemical journal. 1985, Vol 32, Num 3, pp 286-292, issn 0026-265XArticle

Spectrofluorimetric determination of boron in soils, plants and natural waters with alizarin red SGARCIA CAMPAÑA, A. M; BARRERO, F. A; CEBA, M. R et al.Analyst (London. 1877. Print). 1992, Vol 117, Num 7, pp 1189-1191, issn 0003-2654Article

EMPLEO DEL COMPLEJO METALICO FORMADO POR LA DITIOSEMICARBAZONA DE LA 1,3-CICLOHEXANODIONA Y EL ION CD(II) COMOINDICADOR ACIDO-BASE = UTILISATION DU COMPLEXE METALLIQUE FORME PAR LA DITHIOSEMICARBAZONE DE LA CYCLOHEXANEDIONE-1,3 ET L'ION CD(II), COMME INDICATEUR ACIDOBASIQUEROMAN CEBA M; BERZAS NEVADO JJ.1979; AFINIDAD; ESP; DA. 1979; PP. 231-234; ABS. ENG/PORT; BIBL. 7 REF.Article

L'accroissement d'un signal de luminescence moléculaire implique-t-il une amélioration de sensibilité de la méthode analytique ? = Does the increase of the signal of molecular luminescence imply an improvement of the sensitivity of the analytical method?CUADROS RODRIGUEZ, L; JIMENEZ LINARES, C; ROMAN CEBA, M et al.Analusis (Imprimé). 1994, Vol 22, Num 9, pp 462-464, issn 0365-4877Article

DNA sequence and comparative analysis of chimpanzee chromosome 22Nature (London). 2004, Vol 429, Num 6990, pp 382-388, issn 0028-0836, 7 p.Article

Spectrophotometric determination of lithium with Quinizarin in drugs and serumGAMIZ GRACIA, L; CUADROS RODRIGUEZ, L; ROMAN CEBA, M et al.Talanta (Oxford). 1997, Vol 44, Num 1, pp 75-83, issn 0039-9140Article

Cyclopentane-1,3-dione bis(4-methylthiosemicarbazone) monohydrochloride as a spectrophotometric reagent for the determination of chlorate in perchloric acid mediumROMAN CEBA, M; JIMENEZ SANCHEZ, J. C; GALEANO DIAZ, T et al.Microchemical journal. 1985, Vol 32, Num 1, pp 64-68, issn 0026-265XArticle

Cyclopentane-1,3-dione bis (4-methylthiosemicarbazone) monohydrochloride as a spectrophotometric reagent for the determination of bromate in perchloric acid mediumCEBA, M. R; JIMENEZ SANCHEZ, J. C; GALEANO DIAZ, T et al.Analytical letters. 1983, Vol 16, Num 8, pp 593-599, issn 0003-2719Article

Solvent effects on electronic absorption and fluorescence spectra of salicylaldehyde 2-pyridylhydrazone and indolaldehyde 2-salicylhydrazone: ground and excited state dissociation constantsROMAN CEBA, M; CRUCES BLANCO, C; GARCIA SANCHEZ, F et al.Journal of photochemistry. 1985, Vol 30, Num 3, pp 353-362, issn 0047-2670Article

Solvent donicity influence in the fluorescence emission of the lithium/1,4-dihydroxyanthraquinone system. Improvement in the quantification of lithiumCUADROS RODRIGUEZ, L; JIMENEZ LINARES, C; ROMAN CEBA, M et al.Analytical letters. 1997, Vol 30, Num 4, pp 847-866, issn 0003-2719Article

Selective spectrofluorometric determination of lithium(I) with quinizarin by extraction into tributyl phosphateCUADROS RODRIGUEZ, L; JIMENEZ LINARES, C; ROMAN CEBA, M et al.Fresenius' journal of analytical chemistry. 1996, Vol 356, Num 5, pp 320-325, issn 0937-0633Article

Dix ans de quotas laitiers dans les Côtes-d'ArmorTrajectoires Bretagne. 1993, Num 8, pp 5-8, issn 1167-4563Article

A NEW GRAPHIC METHOD FOR DIFFERENTIATING MONONUCLEAR AND POLYNUCLEAR COMPLEXES AND FOR DETERMINING THEIR STABILITY CONSTANTSGONZALEZ GARCIA DV; ARREBOLA RAMIRER A; ROMAN CEBA M et al.1979; TALANTA; GBR; DA. 1979; VOL. 26; NO 3; PP. 215-218; BIBL. 7 REF.Article

Thermal studies on 2,3-xylyliminodiacetato compoundsSALAS-PEREGRIN, J. M; ROMAN-CEBA, M; AVILA-ROSON, J. C et al.Thermochimica acta. 1985, Vol 87, pp 109-115, issn 0040-6031Article

Synthesis, characterization and thermal behaviour of N-2,3-dimethylphenylglycinate, N-2,4-dimethylphenylglycinate and N-2-ethylphenylglycinate complexes of Zn(II)SALAS-PEREGRIN, J. M; ROMAN CEBA, M; AVILA ROSON, J. C et al.Thermochimica acta. 1984, Vol 76, Num 3, pp 381-385, issn 0040-6031Article

A NEW METHOD FOR DETERMINING THE COMPOSITION AND STABILITY CONSTANT OF COMPLEXES OF THE FORM A_MB_N.SANCHEZ JCJ; MUNOZ LEYVA JA; CEBA MR et al.1977; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1977; VOL. 90; PP. 223-231; BIBL. 4 REF.Article

SPECTROPHOTOMETRIC DETERMINATION OF NICKEL BY EXTRACTION OF THE COMPLEX NICKEL-PURPURINROMAN GALAN T; ARREBOL A RAMIREZ A; ROMAN CEBA M et al.1982; MICROCHEM. J.; ISSN 0026-265X; USA; DA. 1982; VOL. 27; NO 2; PP. 210-216; BIBL. 6 REF.Article

SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF IRON (III) BY EXTRACTION OF THE MIXED-LIGAND IRON-FLUORIDE PURPURIN COMPLEXROMAN CEBA M; ARREBOLA RAMIREZ A; BERZAS NEVADO JJ et al.1982; TALANTA (OXF.); ISSN 0039-9140; GBR; DA. 1982; VOL. 29; NO 2; PP. 142-144; BIBL. 10 REF.Article

A NEW SPECTROPHOTOMETRIC METHOD FOR DIFFERENTIATING MONONUCLEAR AND POLYNUCLEAR AND POLYNUCLEAR COMPLEXES AND FOR DETERMINING THEIR EXTRACTION CONSTANTSGALAN TR; ARREBOLA RAMIREZ A; ROMAN CEBA M et al.1980; TALANTA (OXF.); ISSN 0039-9140; GBR; DA. 1980; VOL. 27; NO 6; PP. 545-547; BIBL. 1 REF.Article

CYCLOHEXANE-1,3-DIONE HISTHIOSEMICARBAZONE MONOHYDROCHLORIDE AS A SPECTROPHOTOMETRIC REAGENT FOR THE RAPID DETERMINATION OF CHLORATE IN PERCHLORIC ACID MEDIUM.ROMAN CEBA M; MUNOZ LEYVA JA; BERZAS NEVADO JJ et al.1978; ANALYST; GBR; DA. 1978; VOL. 103; NO 1230; PP. 963-967; BIBL. 7 REF.Article

APLICACIONES ANALITICAS DE LA DITIOSEMICARBAZONA DE LA ACETILACETONA. I. SINTESIS, ESTUDIO DEL REACTIVO Y REACCIONABILIDAD CON LOS IONES METALICOS. = APPLICATIONS ANALYTIQUES DE LA DITHIOSEMICARBAZONE DE L'ACETYLACETONE. I. SYNTHESE ET ETUDE DU REACTIF AINSI QUE DE SA REACTIVITE AVEC LES IONS METALLIQUESJIMENEZ SANCHEZ JC; MUNOZ LEYVA JA; ROMAN CEBA M et al.1976; AFINIDAD; ESP.; DA. 1976; VOL. 33; NO 339-340; PP. 567-571; ABS. ANGL.; BIBL. 14 REF.Article

SPECTROPHOTOMETRIC DETERMINATION OF SULPHIDE IN WATER BY RE-EXTRACTION AND LIGAND EXCHANGE USING CHLOROFORM SOLUTIONS OF COPPER QUINOLIN-8-OLATEROMAN CEBA M; VINAGRE JARA F; MUNOZ LEYVA JA et al.1982; ANALYST (LOND.); ISSN 0003-2654; GBR; DA. 1982; VOL. 107; NO 1276; PP. 781-786; BIBL. 8 REF.Article

INFLUENCE OF THE DIELECTRIC CONSTANT OF HYDROALCOHOLIC MEDIUMS IN THE PHYSICO-CHEMICAL CONSTANTS OF 1,2,7-TRIHYDROXYANTHRAQUINONE AND OF THE 1,2,7-TRIHYDROXYANTHRAQUINONE-CU(II) COMPLEXGONZALEZ GARCIA DV; ARREBOLA RAMIREZ A; ROMAN CEBA M et al.1980; J. INORG. NUCL. CHEM.; ISSN 0022-1902; GBR; DA. 1980; VOL. 42; NO 10; PP. 1453-1458; BIBL. 7 REF.Article

APLICACIONES ANALITICAS DEL MONOCLORHIDRATO DE LA 1,3-CICLOHEXANODIONA DITIOSEMICARBAZONA COME REACTIVO DE OXIDANTES. II. DETERMINACION ESPECTROFOTOMETRICA DE BRO₃^-. = APPLICATIONS ANALYTIQUES DU MONOCHLORHYDRATE DE LA DITHIOSEMICARBAZONE DE LA CYCLOHEXANEDIONE-1,3 COMME REACTIF DES OXYDANTS. II. DOSAGE SPECTROPHOTOMETRIQUE DE BRO₃^-ROMAN CEBA M; MUNOZ LEYVA JA; BERZAS NEVADO JJ et al.1978; AN. QUIM.; ESP.; DA. 1978; VOL. 74; NO 4; PP. 620-624; ABS. ANGL.; BIBL. 8 REF.Article