Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Encarnació Companys"'
Publikováno v:
Journal of Electroanalytical Chemistry, Vol. 849 (2019) P. 113334
Repositorio Abierto de la UdL
Universitad de Lleida
Recercat. Dipósit de la Recerca de Catalunya
instname
Repositorio Abierto de la UdL
Universitad de Lleida
Recercat. Dipósit de la Recerca de Catalunya
instname
Determining antimony speciation is essential to understand its environmental behaviour and potential (eco)toxicological effects. Absence of Gradients and Nemstian Equilibrium Stripping (AGNES) is an electroanalytical technique that has been applied u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::516964d54b7d9af6d3f1940d1cb0b290
https://archive-ouverte.unige.ch/unige:122538
https://archive-ouverte.unige.ch/unige:122538
Publikováno v:
Food Chemistry 239 (2018)
Food Chemistry, 239, 1143-1150
Recercat. Dipósit de la Recerca de Catalunya
instname
Repositorio Abierto de la UdL
Universitad de Lleida
Food Chemistry, 239, 1143-1150
Recercat. Dipósit de la Recerca de Catalunya
instname
Repositorio Abierto de la UdL
Universitad de Lleida
Free concentrations of Zn2+, Fe3+, Ca2+ and Mg2+ in a red wine (Raimat, Catalonia, Spain) have been determined, with the Donnan Membrane Technique (DMT) for the first time. The required equilibration time benefits from the acceptor solution including
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07f56f078ab98e59acf897e34c6470a2
https://hdl.handle.net/10459.1/64708
https://hdl.handle.net/10459.1/64708
Publikováno v:
Electroanalysis. 22:2024-2033
Intermetallic compounds can interfere the determination of free Zn with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping). The “trajectory” (plot of the retrieved currents in front of the deposition times) diverges from the “refe
Autor:
Giancarla Alberti, Antonella Profumo, Josep Galceran, Encarnació Companys, Francesca Zavarise
Publikováno v:
Recercat. Dipósit de la Recerca de Catalunya
instname
Repositorio Abierto de la UdL
Universitad de Lleida
instname
Repositorio Abierto de la UdL
Universitad de Lleida
Absence of gradients and Nernstian equilibrium stripping (AGNES) is a recently developed electroanalytical technique specifically designed for the direct determination of free concentrations of metal ions. AGNES is applied here to the determination o
Autor:
Jaume Puy, Josep Galceran, C. Huidobro, Francesc Mas, José Salvador, Encarnació Companys, Carlos Rey-Castro, Calin David, J. L. Garces, Joan Cecília
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 347:156-166
The properties of the NICA (non-ideal competitive adsorption) isotherm are examined from the point of view of the underlying conditional affinity spectra (CAS), the distribution of effective affinities seen by a given metal ion at a fixed pH. It is s
Autor:
Jaume Puy, Francesc Mas, Josep Galceran, C. Huidobro, Josep Lluís Garcés, Núria Samper, Encarnació Companys
Publikováno v:
Environmental Science & Technology. 42:9289-9295
The new electroanalytical technique AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) has been applied to follow Pb2+ complexation to Purified Aldrich Humic Acid. A refined methodology of AGNES, allowing considerably larger gains, reac
Autor:
Francesc Mas, Calin David, Jaume Puy, Josep Galceran, José Salvador, Encarnació Companys, Carlos Rey-Castro, Josep Lluís Garcés
Publikováno v:
The Journal of Physical Chemistry B. 112:10092-10100
Stepwise constants can be used to describe competitive proton and metal binding to macromolecules with a large number of sites. With the aim of accessing information on the microscopic binding model, we report an expression that connects the stepwise
Autor:
José Salvador, Jaume Puy, Francesc Mas, Encarnació Companys, Josep Galceran, Josep Lluís Garcés
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 306:2-13
The dependence of the apparent acid dissociation constant of charged polyacids on the ionic strength and on the degree of dissociation is analysed in terms of the Donnan model. We introduce a new approximate analytical expression for the Donnan volum
Autor:
Joan Cecília, Josep Galceran, J. L. Garces, Raewyn M. Town, Encarnació Companys, Jaume Puy, José Salvador
Publikováno v:
Salvador, J, Garcés, J L, Companys, E, Cecília, J, Galceran, J, Puy, J & Town, R M 2007, ' Ligand mixture effects in metal complex lability ', Journal of Physical Chemistry A, vol. 111, no. 20, pp. 4304-4311 . https://doi.org/10.1021/jp0707844
The degree of lability of a given metal complex species is modified in the presence of a mixture of ligands. This modification is a consequence of the coupling of the association and dissociation processes of all of the complexes according to the com
Autor:
Encarnació Companys, Josep Galceran, Joan Cecília, Miquel Esteban, Jaume Puy, José Manuel Díaz-Cruz, Núria Serrano, Cristina Ariño
Publikováno v:
Repositorio Abierto de la UdL
Universitad de Lleida
Recercat. Dipósit de la Recerca de Catalunya
instname
Universitad de Lleida
Recercat. Dipósit de la Recerca de Catalunya
instname
A new mathematical treatment has been developed and implemented in an EXCEL spreadsheet in order to determine average equilibrium functions from the full set of data measured by scanning stripping chronopotentiometry (SSCP) in solutions containing di