Analysis of closo-Decaborate Anion and Its Derivatives by Capillary Zone Electrophoresis

Boron cluster compounds are inorganic polyhedral structures used in various fields, they have a wide range of different types of bioactivity and are perspective compounds for boron neutron capture therapy of cancer. Therefore, they require the development of various analytical techniques for qualitative and quantitative analysis and determination of their properties. Capillary electrophoresis (CE) is an interesting, universal method for analysis of charged substances. However, there is a fairly limited number of boron cluster compounds studies using CE. Here reports the possibility of a technically simple method of capillary zone electrophoresis analysis of boron clusters [B10H10]2– and some of its derivatives, as well as the [B12H12]2–. The possibility of anions analysis in normal and reverse polarity separation modes in the absence of capillary surface modifiers or capillary wall polymer coating has been demonstrated. Electrophoretic mobilities were determined for analyzed compounds. The presented work is a clear example of the fact that capillary electrophoresis can serve as a simple and convenient method for soluble and partially water-soluble boron cluster compounds analysis.