1. A method of normalizing an analyzer, the method comprising the steps of: measuring an excitation spectrum of the analyzer; determining at least one wavelength characteristic function of the excitation spectrum of the analyzer; measuring an emission sensitivity spectrum of the analyzer; determining at least one wavelength characteristic function of the emission sensitivity spectrum of the analyzer; and determining a normalization factor based at least upon the at least one wavelength characteristic function of the excitation spectrum and the at least one wavelength characteristic function of the emission sensitivity spectrum, wherein, the normalization factor is used to normalize an analyzer response value of the analyzer.