Electroanalysis of the Borohydride Ion

Cyclic voltammetry (CV) was studied as a quantitative analytical technique for determining the concentration of borohydride ion in alkaline, aqueous solution. The advantages of using CV include relatively low cost, ease of implementation, and in situ, real-time monitoring of borohydride concentration. In addition, a ten-cycle CV of borohydride ion at a gold working electrode is presented. A decrease in peak current is seen on repetitive cycling. Nonetheless, a linear relationship between peak current and concentration is seen for all ten cycles.