全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Raewyn M. Town , Herman P. van Leeuwen
来源:[J].Journal of Electroanalytical Chemistry(IF 2.672), 2019, Vol.853Elsevier
摘要:Abstract(#br)The features of stripping chronopotentiometry at scanned deposition potential (SSCP) are reviewed and placed in context with voltammetric and other dynamic speciation techniques. The advantages of SSCP for speciation analysis of nanoparticulate metal complexes are hi...
作者:Herman P. van Leeuwen , Jacques Buffle ...
来源:[J].Langmuir, 2013, Vol.29 (33), pp.10297鈥?0302ACS
摘要:(16) In brief, the stability of HA complexes with Ni2+ was determined by depletive stripping chronopotentiometry; the ka values were then obtained from the product of the thermodynamic stability constant and the dissociation rate constant, Kkd, where the applicable kd values were...
作者:... Jacques Buffle , Jérôme F. L. Duval , Herman P. van Leeuwen
来源:[J].J. Phys. Chem. A, 2013, Vol.117 (33), pp.7643鈥?654ACS
摘要:Jacques Buffle is emeritus professor of analytical and environmental chemistry at the University of Geneva, Switzerland. ... He served as chairman of the IUPAC commission on Environmental Analytical Chemistry and a member of the Research Council of the Swiss National Foundat...
作者:Katarzyna Zielińska , Herman P. van Leeuwen
来源:[J].Analytica Chimica Acta(IF 4.387), 2014, Vol.844, pp.44-47Elsevier
摘要:Abstract(#br)In this work we present a new approach for protection of the fiber in solid phase microextraction (SPME) from interfering charged particles present in the sample medium. It involves coating of commercial poly(dimethylsiloxane) extraction phase with polyelectrolyte la...
作者:Herman P. van Leeuwen , Raewyn M. Town
来源:[J].Journal of Solid State Electrochemistry(IF 2.279), 2016, Vol.20 (12), pp.3255-3262Springer
摘要:Abstract(#br)Lability concepts are elaborated for metal complexes with soft (3D) and hard (2D) aqueous nanoparticles. In the presence of a non-equilibrium sensor, e.g. a voltammetric electrode, the notion of lability for nanoparticulate metal complexes, M-NP, reflects the ab...
作者:... Jaume Puy , Willem H. van Riemsdijk , Herman P. van Leeuwen
来源:[J].Science of the Total Environment(IF 3.258), 2012, Vol.421-422, pp.238-244Elsevier
摘要:Abstract(#br)The determination of free Zn 2+ ion concentration is a key in the study of environmental systems like river water and soils, due to its impact on bioavailability and toxicity. AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane T...
作者:Rob F. M. J. Cleven , Herman P. Van Leeuwen
来源:[J].International Journal of Environmental Analytical Chemistry(IF 1.24), 1986, Vol.27 (1-2), pp.11-28Taylor & Francis
摘要:Heavy metal ion titrations of solutions of humic acid (HA) and polyacrylic acid (PAA) at different degrees of neutralization have been studied by normal pulse polarography and conductometry.The systems Cd,Pb,Zn/HA and Cd,Zn/PAA appeared to be polarographically labile. As the diff...
作者:Herman P. van Leeuwen , Jaume Puy ...
来源:[J].Journal of Electroanalytical Chemistry(IF 2.672), 2002, Vol.526 (1), pp.10-18Elsevier
摘要:Abstract(#br)The voltammetric response of metal complex systems with various labilities is analyzed by rigorous numerical simulation with the Finite Element Method of the time-dependent concentration profiles of the different species. The ensuing exact fluxes and the corresp...
作者:Herman P. van Leeuwen , Jérôme F.L. Duval
来源:[J].Journal of Colloid And Interface Science(IF 3.172), 2007, Vol.309 (2), pp.350-359Elsevier
摘要:Abstract(#br)More often than not, the measurement of interfacial potentials by means of electrokinetic techniques is affected by interfering processes that may relax or even annihilate their primary response function. Among these processes are faradaic ones, provided that th...

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