For use in a system capable of creating and displaying vector computer graphics, there is disclosed an apparatus and method for acceleration of 2D vector graphics using both a general purpose computer and conventional 3D graphics hardware. The plug has a movable insulating member for covering the plug electrodes when the plug is connected to an outlet and for exposing the electrodes when the plug is not connected to the outlet. The cam shaft includes first and second ends and at least one cam lobe positioned between the ends. In certain embodiments, the diameter of the mounting shaft below the stop member is reduced in order to lessen insertion and ejection forces, which is particularly helpful for hand-held multi-channel pipettors. In particular, the invention encompasses a compound that acts as a potent antibiotic agent for the treatment of bacterial infections, specifically GI infections caused by toxin producing strains of Clostridium difficile and Clostridium perfringens. to obtain the desired lithium cobaltate.