【摘要】 本文以苯酚和苯胺两种吸收峰相近的物质为对象,利用国产751G紫外一可见分光光度计,根据三波长分光光度法的原理,选择三个适当的波长,同时测定了苯胺和苯酚.此方法符合比尔定律的线性范围为0.1～10ppm,它减少了分离手续和其它干涉,其测定误差分别为7.0%和13.3%.更多还原

【Abstract】 In this paper, we studied the amino-benzene and Phenol which are determ jned simultaneously by the instrument of 751G ultraviolet -visible spectrophotometry, Because the two substances have close absorption peaks, they cannot be determined by single wavelength spectrophotometry, The method is based on the Principle of three-vave-length spectrophotometric method, The results of the determinat -ion have shown that the method obeys Bear Law in the range 0.1 to 10 ppm , And their errors are 7.0% and 13.3%, Respecti -vely, the method has many advantages, For example, it does not requ -ire a separation of the sample, And the interference in the procedure is reduced.更多还原