Detection of organic chemical material using laser induced fluorescence

Abstract

Environmental pollution with Dioxines has become one of critical issues. But its spectral characteristic is unknown. In this study, we conducted to detect the trace Dioxines by using laser-induced fluorescence (LIF). We investigated spectral characteristic of dibenzo-p-dioxine (DD) and dibenzofran (DF) in solvent (n-hexane) in ultraviolet wavelength region. As a result, we obtained the fluorescence spectrum by using pump-laser at a wavelength of 225nm with a pulse energy of 100μJ/pulse. Fluorescence peak wavelength of DD and DF were measured to be 300nm and 340nm, respectively.