多组分体系的比光谱导数法分析研究

Study on Simultaneous Determination of Multicomponent Systemsby Ratio Spectrum-Derivative Spectrophotometric Method

本文研制了多组分比光谱导数法数据处理软件。经无机体系 NO-3 和 NO-2 混合组分及有机体系苯酚和苯胺混合组分的验证表明 ,应用该软件可以取得很好的分析测定结果。在此基础上 ,本文对有机混合物苯甲酸和水杨酸体系进行了研究 ,得到了最佳分析条件和满意的分析结果 ,2者的检出限分别为 :1 .0 4 4× 1 0 -3 mg/ L和 4.62 5× 1 0 -3 mg/ L。

A piece of data-processing software for the multicomponent derivative ratio spectrum method was designed. The software was tested with both inorganic mixture --NO-_3 and NO-_2 and organic mixture--phenol and aniline. Furthermore, a mixed system of benzoic acid and salicylic acid was analysed by using the software, and satisfactory analysis results and optimal analysis conditions were obtained. The detect limits are 1.044×10 -3mg/L for benzophenone and 4.625×10 -3mg/L for salicin.