The fluorescence blinking phenomenon, which is ubiquitous in single nano-objects, provides kinetic information concerning the underlying photophysics in these objects. However, considerable attention should be paid to the blinking analysis of these objects, especially, when they comprise multiple competitive processes. Here we report on a new protocol for discriminating between the competitive photophysical processes that cause fluorescence blinking. A robust statistical analysis was conducted by progressively changing a range of data to reveal the true blinking statistics caused by the electron-transfer dynamics at dye-TiO2 interfaces.