2-羟基-4-甲氧基二苯甲酮-5-磺酸的极谱行为研究  

Study on polarographic behavior of 2-benzoyl-5-methoxy-1-phenol-4-sulphonic acid

作　　者：徐绍炳[1] 夏新泉[1] 江娟[1] 

机构地区：[1]湖北师范学院化学与环境工程系,湖北黄石435002

出　　处：《化学试剂》2007年第4期220-222,共3页Chemical Reagents

基　　金：湖北省自然科学基金资助项目(2003ABA062)

摘　　要：用线性扫描极谱法研究了2-羟基-4-甲氧基二苯甲酮-5-磺酸(又名BP-4)的极谱行为。在2.0 mol/L H2SO4溶液中,BP-4产生还原波,波形好,其二阶导数峰电位为-0.93 V(vs.SCE),峰电流与其浓度在1.0×10-7～1.0×10-5mol/L的范围内呈良好的线性关系,线性方程为ip″(nA/s2)=187.5+1.558×108c,相关系数r=0.9996。初步讨论了电极过程及电极反应机理,该波为不可逆波。The polarographic behavior of 2-benzoyl-5-methoxy-1- phenol-4-sulphonic acid （benzophenone-4） was studied by means of linear scanning polarography. Experimental results found out that in a 2 mol/L vitriol solution benzophenone-4 had a secondorder derivative peak with a peak potential of-0.93 V （vs. SCE） .The peak current was proportional to the concentration of benzophenone-4 over a concentration range between 1 × 10^-7 mol/L and 1 × 10^-5 mol/L. The linear regression equation was ip＂（nA/s^2） = 187.5 ＋ 1.558 × 10^8c,with the correlation coefficient r equating to 0.999 6. The mechanism of electrode reaction was investigated simply, and the result showed that the polarographic wave was an irreversible one.

关 键 词：2-羟基-4-甲氧基二苯甲酮-5-磺酸 线性扫描极谱法 极谱波 

分 类 号：O657.14[理学—分析化学]