【摘要】 运用比光谱 导数分光光度法的基本原理 ,推导了双除数因子 比光谱导数分光光度 (计算 )法同时测定三元混合物含量的基本公式 ,研究了在邻硝基酚、间硝基酚和对硝基酚三元混合物同时测定中的应用 ,取得了满意的结果。另外 ,还比较了单位浓度的除数因子与一般除数因子在测量邻硝基酚、间硝基酚和对硝基酚三元混合物时的方法灵敏度 ,证明用单位浓度溶液标准光谱作除数因子时灵敏度较高。更多还原

【Abstract】 This paper reported a new double divisor ratio spectra derivative spectrophotometry (calculation method) based on ratio spectra derivative spectrophotometry (graph method).The priuciple for simultaneous determination of ternary mixture by the proposed method was discussed.The formulae for calculation method were given.The simultaneous determination of o nitrophenol, m nitrophenol and p nitrophenol in their ternary mixture by the proposed method was studied and the results were satisfied.Comparison between the results obtained by different divisors indicated that the sensitivity of method was higher by ″normalized spectra″ than by ″standard spectra″ .更多还原