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研究了2－（2′-呋喃基）苯并咪唑（FBD）和邻苯二胺（OPA）在无水乙醇溶液中的紫外吸收光谱；测定了FBD在305nm和321nm处的摩尔吸光系数；建立了FBD的紫外光度分析法，在0．01～10mg／L的浓度范围，采用321nm的测定波长，5mg／L的OPA不干扰测定，结果满意。
The UV absorption spectra of 2- (2’-furyl) benzimidazole (FBD) and o-phenylenediamine (OPA) in absolute ethanol were studied. The molar extinction coefficients of FBD at 305nm and 321nm were determined. FBD UV spectrophotometry in the concentration range of 0.01 ~ 10mg / L, using the determination wavelength of 321nm, 5mg / L OPA does not interfere with the determination, the results are satisfactory.