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Full-Text Articles in Chemistry
The Effects Of Bridging Ligands On Anodic Stripping Voltammetric Analysis, Larry Beasley
The Effects Of Bridging Ligands On Anodic Stripping Voltammetric Analysis, Larry Beasley
Masters Theses & Specialist Projects
Anodic stripping voltammetry (ASV) is an electroanalytical method used in the determination of trace metals in solutions volumes of 20 milliliters or less. Generally, 10-6 M concentrations are routinely analyzed.
The analysis of Zn(II), Cd(II), and Cr(III) by ASV was Investigated, and the effects of introducing the bridging ligands, cyanide and thiocyanate into solutions of these metal ions was examined. These effects include a cathodic shift in the reduction potentials of the metals, and ASV signal changes ranging from small increases in peak currents to a total loss of peak-current signals, depending on the concentration of the ligand added.
Kinetic Studies Of Polymer-Bound Rhodium (I) Hydrogenation Catalyst, Nee-Yin Chou
Kinetic Studies Of Polymer-Bound Rhodium (I) Hydrogenation Catalyst, Nee-Yin Chou
Masters Theses & Specialist Projects
For many years, it has been customary to classify catalysts as homogeneous or heterogeneous. Generally, the former are more active and more selective. But the major disadvantage of the homogeneous catalysts is the need to separate the reaction products and to recover the catalyst, which is often somewhat more expensive than a "classical" heterogeneous catalyst. It has been considered, especially in the last ten years, that there might be advantages in chemically binding a homogeneous catalyst to a solid support.
Polymer-bound, anthranilic acid anchored rhodium (I) catalysts have been prepared. The rate of hydrogenation of cyclohexene has been studied quantitatively, …