Adélio Alcino Sampaio Castro Machado
AuthID: R-000-038
51
TITLE: Acid-base properties of fulvic acids extracted from an untreated sewage sludge and from composted sludge Full Text
AUTHORS: Da Silva, JCGE ; Machado, AASC; Silva, MABA;
PUBLISHED: 1998, SOURCE: WATER RESEARCH, VOLUME: 32, ISSUE: 2
AUTHORS: Da Silva, JCGE ; Machado, AASC; Silva, MABA;
PUBLISHED: 1998, SOURCE: WATER RESEARCH, VOLUME: 32, ISSUE: 2
52
TITLE: Effect of the pH on the complexation of Cu(II), Ni(II) and Fe(III) ions by a vine leaf litter extract by fluorescence quenching Full Text
AUTHORS: da Silva, JCGE ; Herrero, AI; Machado, AASC; Barrado, E;
PUBLISHED: 1998, SOURCE: MIKROCHIMICA ACTA, VOLUME: 130, ISSUE: 1-2
AUTHORS: da Silva, JCGE ; Herrero, AI; Machado, AASC; Barrado, E;
PUBLISHED: 1998, SOURCE: MIKROCHIMICA ACTA, VOLUME: 130, ISSUE: 1-2
53
TITLE: Usefulness of a ruggedness test in the validation of flow injection analysis systems Full Text
AUTHORS: Alvares Ribeiro, LMBC ; Machado, AASC;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 355, ISSUE: 2-3
AUTHORS: Alvares Ribeiro, LMBC ; Machado, AASC;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 355, ISSUE: 2-3
54
TITLE: Study of the temperature behaviour of all-solid-state nonactin ammonium electrodes with PVC membrane applied to graphite-epoxy supports of varied composition Full Text
AUTHORS: Magalhaes, JMCS; Cespedes, F; Alegret, S; Machado, AASC;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 355, ISSUE: 2-3
AUTHORS: Magalhaes, JMCS; Cespedes, F; Alegret, S; Machado, AASC;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 355, ISSUE: 2-3
INDEXED IN: 
Scopus 
WOS
Scopus WOS55
TITLE: Procedure for the classification of fulvic acids and similar substances based on the variation with pH of their synchronous fluorescence spectra Full Text
AUTHORS: daSilva, JCGE ; Machado, AASC;
PUBLISHED: 1997, SOURCE: Geoanalysis 97 - 3rd International Conference on the Analysis of Geological and Environmental Materials in ANALYST, VOLUME: 122, ISSUE: 11
AUTHORS: daSilva, JCGE ; Machado, AASC;
PUBLISHED: 1997, SOURCE: Geoanalysis 97 - 3rd International Conference on the Analysis of Geological and Environmental Materials in ANALYST, VOLUME: 122, ISSUE: 11
56
TITLE: Optimization of a flow injection differential potentiometric system with two identical electrodes for the determination of calcium ion in water with improved sensitivity Full Text
AUTHORS: AlvaresRibeiro, LMBC ; Machado, AASC;
PUBLISHED: 1997, SOURCE: ANALYST, VOLUME: 122, ISSUE: 11
AUTHORS: AlvaresRibeiro, LMBC ; Machado, AASC;
PUBLISHED: 1997, SOURCE: ANALYST, VOLUME: 122, ISSUE: 11
57
TITLE: Variation of the stability of complexes of Al(III) with a fulvic acid extracted from a humic cambisol soil in the pH range three to five Full Text
AUTHORS: daSilva, JCGE ; Machado, AASC; Ramos, MA; Arce, F; Rey, F;
PUBLISHED: 1997, SOURCE: ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, VOLUME: 16, ISSUE: 9
AUTHORS: daSilva, JCGE ; Machado, AASC; Ramos, MA; Arce, F; Rey, F;
PUBLISHED: 1997, SOURCE: ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, VOLUME: 16, ISSUE: 9
58
TITLE: Study of the interaction of Al(III) with a soil fulvic acid in the acid pH range by self-modeling mixture analysis of synchronous fluorescence spectral data Full Text
AUTHORS: daSilva, JCGE ; Machado, AASC; Oliveira, CJS ;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 349, ISSUE: 1-3
AUTHORS: daSilva, JCGE ; Machado, AASC; Oliveira, CJS ;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 349, ISSUE: 1-3
59
TITLE: Influence of small alcohol concentrations on the conductimetric behaviour of a natural polyelectrolyte (laurel, laurus nobilis) Full Text
AUTHORS: Rey, F; PerezAsenjo, M; Machado, AASC; Facal, P; Ferreira, MA;
PUBLISHED: 1997, SOURCE: JOURNAL OF ELECTROANALYTICAL CHEMISTRY, VOLUME: 431, ISSUE: 1
AUTHORS: Rey, F; PerezAsenjo, M; Machado, AASC; Facal, P; Ferreira, MA;
PUBLISHED: 1997, SOURCE: JOURNAL OF ELECTROANALYTICAL CHEMISTRY, VOLUME: 431, ISSUE: 1
60
TITLE: Study of the complexation of Cu(II) by fulvic acids extracted from a sewage sludge and its compost
AUTHORS: daSilva, JCGE ; Machado, AASC; Pinto, MSSDS;
PUBLISHED: 1997, SOURCE: FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, VOLUME: 357, ISSUE: 7
AUTHORS: daSilva, JCGE ; Machado, AASC; Pinto, MSSDS;
PUBLISHED: 1997, SOURCE: FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, VOLUME: 357, ISSUE: 7
