三波长分光光度法同时测定芴、氧芴和苊  

Determination of Fluorene,Dibenzofuran and Acenaphthene by Three-Wavelength Spectrophotometry at the Same Time

作　　者：熊道陵[1] 陈玉娟[1] 王庚亮[1] 杨金鑫[1] 

机构地区：[1]江西理工大学冶金与化学工程学院,江西省赣州市红旗大道86号341000

出　　处：《光谱实验室》2013年第6期2895-2900,共6页Chinese Journal of Spectroscopy Laboratory

基　　金：江西省教育厅科技资助项目(GJJ11458;GJJ11476;GJJ10157)

摘　　要：从洗油中分离出来的芴在新材料、医药、催化剂等领域取得广泛应用。实验研究表明芴、氧芴、苊各物质的吸光度在一定浓度范围内服从朗贝-比耳定律且具有良好的加和性。根据芴、氧芴、苊紫外吸收光谱图,选择参比波长为227nm、261nm、281nm较为合适,采用三波长分光光度法可以同时对芴、氧芴、苊进行测定。基于三波长分光光度法的方程组特点,运用M A T L A B软件编写程序,建立求解三波长分光光度法的方程组。为了验证该方法的可行性,进行了加标回收实验,结果表明相对误差可以控制在0.33%—2.5%之间,回收率在97.5%以上,此方法具有快速、简便、检测费用低、准确度高的特点,能够满足分析多组分样品的要求。Fluorene is a cut fraction of wash oil, which is wildly applying in novel materials, medicine and catalysis. The experimental results show that the absorbance of fluorene, dibenzofuran and acenaphthene obey Lamber-Beer＇s law with better liner additivity in a certain concentration. According to the UV spectra of fluorene, dibenzofuran and acenaphthene, the suitable reference wavelength was determined at 227nm,261nm and 281nm. The tri-wavelength spectrophotometry can simultaneously detect fluorene, dibenzofuran and acenaphthene. Based on Lamber-Beer＇s law, the equations of tri-wavelength spectrophotometry were established and calculated by matlab program. In order to verify the feasibility, standard addition test was used. The results indicate that the relative error is in the range of 0. 33% and 2.5% ;the recovery is above 97.5%. This method suits for analysis in multi-component with fast ,simple,low cost and high accuracy.

关 键 词：芴 氧芴 苊 三波长分光光度法 加标回收 

分 类 号：O657.32[理学—分析化学]