Centro de Investigação Em Química da Universidade do Porto (CIQUP)
AuthID: I-000-1ACPublications Count: 2379
97 Team MembersFilters -> Year: 2024
2221
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
AUTHORS: daSilva, JCGE ; Machado, AASC; Oliveira, CJS ;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 349, ISSUE: 1-3, PAGES: 23-31
AUTHORS: daSilva, JCGE ; Machado, AASC; Oliveira, CJS ;
PUBLISHED: 1997, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 349, ISSUE: 1-3, PAGES: 23-31
2222
TITLE: The complexation of Cu(II) by anthropogenic fulvic acids extracted from composted urban and livestock wastes
AUTHORS: daSilva, JCGE ; Machado, AASC; Pinto, MSSDS;
PUBLISHED: 1997, SOURCE: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES, VOLUME: 32, ISSUE: 4, PAGES: 469-482
AUTHORS: daSilva, JCGE ; Machado, AASC; Pinto, MSSDS;
PUBLISHED: 1997, SOURCE: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES, VOLUME: 32, ISSUE: 4, PAGES: 469-482
2223
TITLE: Thermochemical and theoretical studies of 4-methylbiphenyl, 4,4' -dimethylbiphenyl, 4,4'-dimethyl-2,2'-bipyridine
AUTHORS: Ribeiro Da Suva, MAV; Agostinha R Matos, M ; Do Rio, CMA; Morals, VMF;
PUBLISHED: 1997, SOURCE: Journal of the Chemical Society - Faraday Transactions, VOLUME: 93, ISSUE: 17, PAGES: 3061-3065
AUTHORS: Ribeiro Da Suva, MAV; Agostinha R Matos, M ; Do Rio, CMA; Morals, VMF;
PUBLISHED: 1997, SOURCE: Journal of the Chemical Society - Faraday Transactions, VOLUME: 93, ISSUE: 17, PAGES: 3061-3065
2224
TITLE: Thermochemical and theoretical studies of 4-methylbiphenyl, 4,4'-dimethylbiphenyl, 4,4'-dimethyl-2,2'-bipyridine
AUTHORS: daSilva, MAVR ; Mates, MAR ; doRio, CMA; Morais, VMF;
PUBLISHED: 1997, SOURCE: JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, VOLUME: 93, ISSUE: 17, PAGES: 3061-3065
AUTHORS: daSilva, MAVR ; Mates, MAR ; doRio, CMA; Morais, VMF;
PUBLISHED: 1997, SOURCE: JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, VOLUME: 93, ISSUE: 17, PAGES: 3061-3065
2225
TITLE: Thermochemical and theoretical study of some quinoxaline 1,4-dioxides and of pyrazine 1,4-dioxide
AUTHORS: Acree, WE; Powell, JR; Tucker, SA; daSilva, MDMCR ; Matos, MAR ; Goncalves, JM ; Santos, LMNBF ; Morais, VMF ; Pilcher, G;
PUBLISHED: 1997, SOURCE: JOURNAL OF ORGANIC CHEMISTRY, VOLUME: 62, ISSUE: 11, PAGES: 3722-3726
AUTHORS: Acree, WE; Powell, JR; Tucker, SA; daSilva, MDMCR ; Matos, MAR ; Goncalves, JM ; Santos, LMNBF ; Morais, VMF ; Pilcher, G;
PUBLISHED: 1997, SOURCE: JOURNAL OF ORGANIC CHEMISTRY, VOLUME: 62, ISSUE: 11, PAGES: 3722-3726
2226
TITLE: Thermochemical and theoretical study of some quinoxaline 1,4-dioxides and of pyrazine 1,4-dioxide. (vol 62, pg 3724, 1997)
AUTHORS: Acree, WE; Powell, JR; Tucker, SA; daSilva, MDMCR ; Matos, MAR; Goncalves, JM ; Santos, LMNBF; Morais, VMF; Pilcher, G;
PUBLISHED: 1997, SOURCE: JOURNAL OF ORGANIC CHEMISTRY, VOLUME: 62, ISSUE: 25, PAGES: 8960-8960
AUTHORS: Acree, WE; Powell, JR; Tucker, SA; daSilva, MDMCR ; Matos, MAR; Goncalves, JM ; Santos, LMNBF; Morais, VMF; Pilcher, G;
PUBLISHED: 1997, SOURCE: JOURNAL OF ORGANIC CHEMISTRY, VOLUME: 62, ISSUE: 25, PAGES: 8960-8960
2227
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
AUTHORS: Joaquim C G Esteves da Silva ; Adélio A S C Machado; Angeles A Ramos; Florencio Arce; Francisco Rey;
PUBLISHED: 1997, SOURCE: Environmental Toxicology and Chemistry, VOLUME: 16, ISSUE: 9, PAGES: 1845-1850
AUTHORS: Joaquim C G Esteves da Silva ; Adélio A S C Machado; Angeles A Ramos; Florencio Arce; Francisco Rey;
PUBLISHED: 1997, SOURCE: Environmental Toxicology and Chemistry, VOLUME: 16, ISSUE: 9, PAGES: 1845-1850
2228
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
AUTHORS: daSilva, JCGE ; Machado, AASC; Ramos, MA; Arce, F; Rey, F;
PUBLISHED: 1997, SOURCE: ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, VOLUME: 16, ISSUE: 9, PAGES: 1845-1850
AUTHORS: daSilva, JCGE ; Machado, AASC; Ramos, MA; Arce, F; Rey, F;
PUBLISHED: 1997, SOURCE: ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, VOLUME: 16, ISSUE: 9, PAGES: 1845-1850
2229
TITLE: Additional evidence of the operational character of the lability of complexes of copper(II) with simple organic ligands
AUTHORS: Vasconcelos, MTSD; Azenha, MAO ;
PUBLISHED: 1996, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 333, ISSUE: 1-2, PAGES: 97-105
AUTHORS: Vasconcelos, MTSD; Azenha, MAO ;
PUBLISHED: 1996, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 333, ISSUE: 1-2, PAGES: 97-105
2230
TITLE: Catanionic surfactants
AUTHORS: Khan, A; Marques, E ;
PUBLISHED: 1996, SOURCE: Specialist Surfactants, PAGES: 37-80
AUTHORS: Khan, A; Marques, E ;
PUBLISHED: 1996, SOURCE: Specialist Surfactants, PAGES: 37-80
2231
TITLE: Characterization of the binding sites for Al(III) and Be(II) in a sample of marine fulvic acids
AUTHORS: daSilva, JCGE ; Machado, AASC;
PUBLISHED: 1996, SOURCE: MARINE CHEMISTRY, VOLUME: 54, ISSUE: 3-4, PAGES: 293-302
AUTHORS: daSilva, JCGE ; Machado, AASC;
PUBLISHED: 1996, SOURCE: MARINE CHEMISTRY, VOLUME: 54, ISSUE: 3-4, PAGES: 293-302
2232
TITLE: Classification of binding sites for Al(III) in fulvic acids extracted from leaf litters and soils by synchronous fluorescence spectroscopy and multidimensional chemometric analysis
AUTHORS: daSilva, JCGE ; Ferreira, MA; Machado, AASC; Rey, F;
PUBLISHED: 1996, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 333, ISSUE: 1-2, PAGES: 71-82
AUTHORS: daSilva, JCGE ; Ferreira, MA; Machado, AASC; Rey, F;
PUBLISHED: 1996, SOURCE: ANALYTICA CHIMICA ACTA, VOLUME: 333, ISSUE: 1-2, PAGES: 71-82
2233
TITLE: Electrochemical evidence of surfactant activity of the hepes pH buffer which may have implications on trace metal availability to cultures in vitro
AUTHORS: Vasconcelos, MTSD; Azenha, MAGO ; Lage, OM ;
PUBLISHED: 1996, SOURCE: ANALYTICAL BIOCHEMISTRY, VOLUME: 241, ISSUE: 2, PAGES: 248-253
AUTHORS: Vasconcelos, MTSD; Azenha, MAGO ; Lage, OM ;
PUBLISHED: 1996, SOURCE: ANALYTICAL BIOCHEMISTRY, VOLUME: 241, ISSUE: 2, PAGES: 248-253
2234
TITLE: Enthalpies of combustion of 5-methoxybenzofurazan, 5-methoxybenzofurazan-1-oxide, 5-methylbenzofurazan-1-oxide, 5-chlorobenzofurazan-1-oxide, and 4-nitro-benzofurazan-1-oxide: The dissociation enthalpies of the N-O bonds
AUTHORS: Acree, WE; Bott, SG; Tucker, SA; daSilva, MDMCR ; Matos, MAR ; Pilcher, G;
PUBLISHED: 1996, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 28, ISSUE: 6, PAGES: 673-683
AUTHORS: Acree, WE; Bott, SG; Tucker, SA; daSilva, MDMCR ; Matos, MAR ; Pilcher, G;
PUBLISHED: 1996, SOURCE: JOURNAL OF CHEMICAL THERMODYNAMICS, VOLUME: 28, ISSUE: 6, PAGES: 673-683
2235
TITLE: FIA automatic dilution system for the determination of metallic cations in waters by atomic absorption and flame emission spectrometry
AUTHORS: Garrido, JMPJ ; Lapa, RAS ; Lima, JLFC ; DelerueMatos, C ; Santos, JLM ;
PUBLISHED: 1996, SOURCE: JOURNAL OF AUTOMATIC CHEMISTRY, VOLUME: 18, ISSUE: 1, PAGES: 17-21
AUTHORS: Garrido, JMPJ ; Lapa, RAS ; Lima, JLFC ; DelerueMatos, C ; Santos, JLM ;
PUBLISHED: 1996, SOURCE: JOURNAL OF AUTOMATIC CHEMISTRY, VOLUME: 18, ISSUE: 1, PAGES: 17-21
2236
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
2237
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
2238
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
2239
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
2240
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: C.G Joaquim; Esteves da Silva ; Adélio A.S.C Machado; Carla S.P.C.O Silva;
PUBLISHED: 1996, SOURCE: Analytica Chimica Acta, VOLUME: 318, ISSUE: 3, PAGES: 365-372
AUTHORS: C.G Joaquim; Esteves da Silva ; Adélio A.S.C Machado; Carla S.P.C.O Silva;
PUBLISHED: 1996, SOURCE: Analytica Chimica Acta, VOLUME: 318, ISSUE: 3, PAGES: 365-372