| 分光光度法测定2，4-二羟基二苯甲酮的含量 |
| |
| 引用本文： | 夏新泉,陈灵,殷林园.分光光度法测定2，4-二羟基二苯甲酮的含量[J].湖北师范学院学报(自然科学版),2008,28(2):82-84. |
| |
| 作者姓名： | 夏新泉 陈灵 殷林园 |
| |
| 作者单位： | 湖北师范学院,化学与环境工程学院,湖北,黄石,435002 |
| |
| 摘 要： | 建立了测定2，4-二羟基二苯甲酮含量的分先先度法。实验表明，在pH为10的B—R缓冲溶液中，2,4-二羟基二苯甲酮在404nm波长下有最大吸收，8=4．36×10^4L／（m01．em）．于1．0×10^-5mol／L～3．0×10^-4mol／L范围内其吸光度与浓度呈良好的线性关系，其线性回归方程为A=0．4361×10^4c（mol／L）＋0．0083，相关系数为r=0．9996．用加入回收法进行试验，回收率为98．1％～104.7％．
|
| 关 键 词： | 2 4-二羟基二苯甲酮 分光光度法 防晒剂 |
| 文章编号： | 1009-2714(2008)02-0082-03 |
| 修稿时间： | 2007年10月20 |
Study of determination of 2,4-dihydroxy benzophenone by spectrophotometry |
| |
| XIA Xin-quan,CHEN Ling,YIN Lin-yuan.Study of determination of 2,4-dihydroxy benzophenone by spectrophotometry[J].Journal of Hubei Normal University(Natural Science),2008,28(2):82-84. |
| |
| Authors: | XIA Xin-quan CHEN Ling YIN Lin-yuan |
| |
| Institution: | ( Department of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002 , China) |
| |
| Abstract: | A new method has been established for the determination of 2,4 -dihydroxy benzophenone by spectrophotometry at pH 10 B - R buffer solution. The results show that the absorbance of 2,4 - dihydroxy benzophenone is lined with the concentration ranging from 1.0 × 10^-5 mol/L to 3.0 × 10^-4mol/L at the maximal absorbanee wave length of 404nm. The linear equation is A = 0.4361 × 10^4c ＋ 0.0083 with correlation coefficient 0.9996. The proposed method has been applied to the determination of 2,4 - dihydroxy benzophenone in synthetical sample with the recoveries of 98.1 ～ 104.7%. |
| |
| Keywords: | 2 4- dihydroxy benzophenone spectrophotometry suntan reagent |
| 本文献已被 维普 万方数据 等数据库收录！ |
