Far-ultraviolet spectroscopy and deep-ultraviolet spectroscopy: Industrial applications

Abstract

FUV or DUV absorption spectrum has very strong absorptivity with a steep absorption edge. Since the spectral changes in the intensity, position, and bandwidth of the band are observed sensitively even at the portion of the tail band, these spectra can be applied for a powerful method in industrial analytical applications. The potential of FUV and DUV spectroscopy is revealed as a highly sensitive analytical method for aqueous solutions such as mineral water, springwater, and variety of industrial cleaning water. In addition, it is proposed that FUV spectroscopy is useful for not only analysis of aqueous solutions and nonaqueous solvents but also for non-solvent substances such as polymer films.