Centro de Investigação Em Química da Universidade do Porto (CIQUP)
AuthID: I-000-1ACPublications Count: 2651
114 Team MembersFilters -> Year: 2025
2501
TITLE: Interaction of fulvic acids with Al(III) studied by self-modeling curve resolution of second-derivative synchronous fluorescence spectra
AUTHORS: daSilva, JCGE ; Machado, AASC;
PUBLISHED: 1996, SOURCE: APPLIED SPECTROSCOPY, VOLUME: 50, ISSUE: 4, PAGES: 436-443
AUTHORS: daSilva, JCGE ; Machado, AASC;
PUBLISHED: 1996, SOURCE: APPLIED SPECTROSCOPY, VOLUME: 50, ISSUE: 4, PAGES: 436-443
2502
TITLE: Interaction of Fulvic Acids with Al(III) Studied by Self-Modeling Curve Resolution of Second-Derivative Synchronous Fluorescence Spectra
AUTHORS: Joaquim Esteves G E Da Silva ; Adélio A S C Machado;
PUBLISHED: 1996, SOURCE: Applied Spectroscopy, VOLUME: 50, ISSUE: 4, PAGES: 436-443
AUTHORS: Joaquim Esteves G E Da Silva ; Adélio A S C Machado;
PUBLISHED: 1996, SOURCE: Applied Spectroscopy, VOLUME: 50, ISSUE: 4, PAGES: 436-443
2503
TITLE: Monitoring of molecular transformations in acid-base reactions by evolving factor analysis of Fourier transform infrared spectra data
AUTHORS: daSilva, JCG ; Machado, AASC; Oliveira, CJS ;
PUBLISHED: 1996, SOURCE: TALANTA, VOLUME: 43, ISSUE: 9, PAGES: 1443-1456
AUTHORS: daSilva, JCG ; Machado, AASC; Oliveira, CJS ;
PUBLISHED: 1996, SOURCE: TALANTA, VOLUME: 43, ISSUE: 9, PAGES: 1443-1456
2504
TITLE: Quantitative study of Be(II) complexation by soil fulvic acids by molecular fluorescence spectroscopy
AUTHORS: daSilva, JCGE ; Machado, AASC; Ramos, MA; Arce, F; Rey, F;
PUBLISHED: 1996, SOURCE: ENVIRONMENTAL SCIENCE & TECHNOLOGY, VOLUME: 30, ISSUE: 11, PAGES: 3155-3160
AUTHORS: daSilva, JCGE ; Machado, AASC; Ramos, MA; Arce, F; Rey, F;
PUBLISHED: 1996, SOURCE: ENVIRONMENTAL SCIENCE & TECHNOLOGY, VOLUME: 30, ISSUE: 11, PAGES: 3155-3160
2505
TITLE: Simultaneous use of evolving factor analysis of fluorescence spectral data and analysis of pH titration data for comparison of the acid-base properties of fulvic acids
AUTHORS: daSilva, JCGE; Machado, AASC ; Silva, CSPCO;
PUBLISHED: 1996, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 318, ISSUE: 3, PAGES: 365-372
AUTHORS: daSilva, JCGE; Machado, AASC ; Silva, CSPCO;
PUBLISHED: 1996, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 318, ISSUE: 3, PAGES: 365-372
2506
TITLE: Study of the interaction of a marine fulvic acid with Cu(II) at low concentration by molecular fluorescence and chemometrics
AUTHORS: daSilva, JCGE ; Machado, AASC;
PUBLISHED: 1996, SOURCE: ANALES DE QUIMICA, VOLUME: 92, ISSUE: 5, PAGES: 306-311
AUTHORS: daSilva, JCGE ; Machado, AASC;
PUBLISHED: 1996, SOURCE: ANALES DE QUIMICA, VOLUME: 92, ISSUE: 5, PAGES: 306-311
2507
TITLE: Study of the interaction of a soil fulvic acid with UO22+ by self-modelling mixture analysis of synchronous molecular fluorescence spectra
AUTHORS: daSilva, JCGE ; Machado, AASC; Oliveira, CJS ;
PUBLISHED: 1996, SOURCE: ANALYST, VOLUME: 121, ISSUE: 10, PAGES: 1373-1379
AUTHORS: daSilva, JCGE ; Machado, AASC; Oliveira, CJS ;
PUBLISHED: 1996, SOURCE: ANALYST, VOLUME: 121, ISSUE: 10, PAGES: 1373-1379
2508
TITLE: Temperature coefficient of the potential of zero charge and entropies of formation for the interface of stepped faces of gold in contact with aqueous perchloric acid solutions
AUTHORS: Silva, F ; Sottomayor, MJ ; Martins, A;
PUBLISHED: 1996, SOURCE: JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, VOLUME: 92, ISSUE: 20, PAGES: 3693-3699
AUTHORS: Silva, F ; Sottomayor, MJ ; Martins, A;
PUBLISHED: 1996, SOURCE: JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, VOLUME: 92, ISSUE: 20, PAGES: 3693-3699
2509
TITLE: Temperature coefficients and interfacial solvent structure
AUTHORS: Silva, AF ;
PUBLISHED: 1996, SOURCE: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, VOLUME: 212, PAGES: 52-COLL
AUTHORS: Silva, AF ;
PUBLISHED: 1996, SOURCE: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, VOLUME: 212, PAGES: 52-COLL
2510
TITLE: Thermochemical and theoretical study of some methyldiazines
AUTHORS: daSilva, MAVR ; Morais, VMF ; Matos, MAR ; Rio, CMA; Piedade, CMGS;
PUBLISHED: 1996, SOURCE: STRUCTURAL CHEMISTRY, VOLUME: 7, ISSUE: 5-6, PAGES: 329-336
AUTHORS: daSilva, MAVR ; Morais, VMF ; Matos, MAR ; Rio, CMA; Piedade, CMGS;
PUBLISHED: 1996, SOURCE: STRUCTURAL CHEMISTRY, VOLUME: 7, ISSUE: 5-6, PAGES: 329-336
2511
TITLE: Thermochemical studies for determination of the molar enthalpy of formation of aniline derivatives
AUTHORS: daSilva, MAVR ; Maria D. M. C. Ribeiro da Silva ; Monteiro, MFBM; Gomes, MLACN; Chickos, JS; Smith, AP; Liebman, JF;
PUBLISHED: 1996, SOURCE: STRUCTURAL CHEMISTRY, VOLUME: 7, ISSUE: 5-6, PAGES: 367-373
AUTHORS: daSilva, MAVR ; Maria D. M. C. Ribeiro da Silva ; Monteiro, MFBM; Gomes, MLACN; Chickos, JS; Smith, AP; Liebman, JF;
PUBLISHED: 1996, SOURCE: STRUCTURAL CHEMISTRY, VOLUME: 7, ISSUE: 5-6, PAGES: 367-373
2512
TITLE: Vapour pressures and standard molar enthalpies of sublimation of two crystalline iron(III) beta-diketonates. The mean molar (Fe-O) bond-dissociation enthalpies
AUTHORS: daSilva, MAVR ; M J S Monte ; Huinink, J;
PUBLISHED: 1996, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 28, ISSUE: 4, PAGES: 413-419
AUTHORS: daSilva, MAVR ; M J S Monte ; Huinink, J;
PUBLISHED: 1996, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 28, ISSUE: 4, PAGES: 413-419
2513
TITLE: Beryllium(II) as a Probe for Study of the Interactions of Metals and Fulvic Acids by Synchronous Fluorescence Spectroscopy
AUTHORS: Joaquim Esteves Da E D Silva ; Adélio A S C Machado; Teresa M O Garcia;
PUBLISHED: 1995, SOURCE: Applied Spectroscopy, VOLUME: 49, ISSUE: 10, PAGES: 1500-1506
AUTHORS: Joaquim Esteves Da E D Silva ; Adélio A S C Machado; Teresa M O Garcia;
PUBLISHED: 1995, SOURCE: Applied Spectroscopy, VOLUME: 49, ISSUE: 10, PAGES: 1500-1506
2514
TITLE: BERYLLIUM(II) AS A PROBE FOR STUDY OF THE INTERACTIONS OF METALS AND FULVIC-ACIDS BY SYNCHRONOUS FLUORESCENCE SPECTROSCOPY
AUTHORS: DASILVA, JCGE ; MACHADO, AASC ; GARCIA, TMO;
PUBLISHED: 1995, SOURCE: APPLIED SPECTROSCOPY, VOLUME: 49, ISSUE: 10, PAGES: 1500-1506
AUTHORS: DASILVA, JCGE ; MACHADO, AASC ; GARCIA, TMO;
PUBLISHED: 1995, SOURCE: APPLIED SPECTROSCOPY, VOLUME: 49, ISSUE: 10, PAGES: 1500-1506
2515
TITLE: CHARACTERIZATION OF THE ACID-BASE PROPERTIES OF HUMIC SUBSTANCES BY CHEMOMETRIC ANALYSIS OF SYNCHRONOUS FLUORESCENCE AND PH POTENTIOMETRIC DATA
AUTHORS: DASILVA, JCGE ; MACHADO, AASC ;
PUBLISHED: 1995, SOURCE: ANALYTICAL LETTERS, VOLUME: 28, ISSUE: 13, PAGES: 2401-2411
AUTHORS: DASILVA, JCGE ; MACHADO, AASC ;
PUBLISHED: 1995, SOURCE: ANALYTICAL LETTERS, VOLUME: 28, ISSUE: 13, PAGES: 2401-2411
2516
TITLE: Characterization of the acid-base properties of humic substances by chemometric analysis of synchronous fluorescence and ph potentiometric data
AUTHORS: Esteves da Silva, JCG ; Machado, AASC;
PUBLISHED: 1995, SOURCE: Analytical Letters, VOLUME: 28, ISSUE: 13, PAGES: 2401-2411
AUTHORS: Esteves da Silva, JCG ; Machado, AASC;
PUBLISHED: 1995, SOURCE: Analytical Letters, VOLUME: 28, ISSUE: 13, PAGES: 2401-2411
2517
TITLE: Determination of ascorbic acid in pharmaceutical products by flow injection analysis using an amperometric detector
AUTHORS: Garrido, EM ; Lima, JLFC ; DelerueMatos, C ;
PUBLISHED: 1995, SOURCE: FARMACO, VOLUME: 50, ISSUE: 12, PAGES: 881-884
AUTHORS: Garrido, EM ; Lima, JLFC ; DelerueMatos, C ;
PUBLISHED: 1995, SOURCE: FARMACO, VOLUME: 50, ISSUE: 12, PAGES: 881-884
2518
TITLE: Enthalpies of combustion of 2,2',6,6'-tetraethylazobenzene N,N-dioxide,2,4,6-tri(1,1-dimethylethyl)nitrosobenzene, and 2,4,6-tri(1,1-dimethylethyl)nitrobenzene
AUTHORS: Acree, WE; Bott, SG; Tucker, SA; Maria D. M. C. Ribeiro da Silva ; Matos, MAR ; Pilcher, G;
PUBLISHED: 1995, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 27, ISSUE: 12, PAGES: 1433-1440
AUTHORS: Acree, WE; Bott, SG; Tucker, SA; Maria D. M. C. Ribeiro da Silva ; Matos, MAR ; Pilcher, G;
PUBLISHED: 1995, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 27, ISSUE: 12, PAGES: 1433-1440
2519
TITLE: ENTHALPIES OF COMBUSTION OF 4-NITROPYRIDINE N-OXIDE AND PYRIDINE-3-CARBOXYLIC ACID N-OXIDE - THE DISSOCIATION ENTHALPIES OF THE N-O BONDS IN PYRIDINE N-OXIDE DERIVATIVES
AUTHORS: ACREE, WE; TUCKER, SA; Maria D. M. C. Ribeiro da Silva ; MATOS, MAR ; GONCALVES, JM ; DASILVA, MAVR ; PILCHER, G;
PUBLISHED: 1995, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 27, ISSUE: 4, PAGES: 391-398
AUTHORS: ACREE, WE; TUCKER, SA; Maria D. M. C. Ribeiro da Silva ; MATOS, MAR ; GONCALVES, JM ; DASILVA, MAVR ; PILCHER, G;
PUBLISHED: 1995, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 27, ISSUE: 4, PAGES: 391-398
2520
TITLE: ENTHALPIES OF COMBUSTION, VAPOR-PRESSURES, AND ENTHALPIES OF SUBLIMATION OF 2-CYANOQUINOLINE AND 3-CYANOQUINOLINE
AUTHORS: DASILVA, MAVR ; MATOS, MAR ; Luísa M.P.F: Amaral ;
PUBLISHED: 1995, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 27, ISSUE: 11, PAGES: 1187-1196
AUTHORS: DASILVA, MAVR ; MATOS, MAR ; Luísa M.P.F: Amaral ;
PUBLISHED: 1995, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 27, ISSUE: 11, PAGES: 1187-1196