| The design, development and applications of two electrochemical instrumentation projects are presented. Each project involved the original design and construction of an electrochemical instrument, along with applications to analysis and detection of chemical species and components in mixtures for both static and flowing systems. The first project consisted of an automatic titration instrument which automates the calibration, data acquisition and reagent delivery process. This instrument was applied to study carbonate and bicarbonate mixtures, which traditionally are analyzed via a multiple step wet chemistry method. Results obtained with the instrument were similar to or better than the wet chemistry method. In the second project, a versatile multi-functional electrochemical instrument for voltammetry, polarography and electrochemical flow analysis detection was developed. The instrument was designed with an automatic static drop mercury electrode which was used as part of a flow cell detection system. The instrument was applied to the detection and examination of the differential catalytic current of B vitamins eluting from a High Pressure Liquid Chromatography (HPLC) column. The instrument was demonstrated in several of its modes, with successful separation and analysis of the vitamins. |
