基于3种荧光化合物检测草酰氯气体的化学发光试纸法  

Test Paper Method of Chemiluminescence Based on Three Fluorescent Compounds for the Detection of Oxalyl Chloride Vapor

作　　者：郑秀萍[1,2] 乔文强[1] 王植源[1] 

机构地区：[1]中国科学院长春应用化学研究所,高分子物理与化学重点实验室,长春130022 [2]中国科学院大学,北京100049

出　　处：《应用化学》2016年第10期1203-1209,共7页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(21134005;21474102;21474105)资助~~

摘　　要：研究了3种发光材料聚芴(PF)、5,5'-双(9,9-二辛基芴)-2,2'-联噻吩(F-T-T-F)和4,7-双(5-(9,9-二丙基芴)噻吩)苯并噻二唑(3FT-BTD)的固态化学发光。将这3种材料吸附于滤纸上得到了相应的检测试纸,研究了其与草酰氯蒸气的相互作用。与溶液体系相比,基于试纸的固态化学发光时间可以延长至8~10 min。该方法对草酰氯蒸气的检测限较低,分别为0.013 mg/m^3(PF)、0.27 mg/m^3(F-T-T-F)和1.8 mg/m^3(3FT-BTD)。制备的检测试纸可以反复暴露于草酰氯蒸气中引发化学发光,发光强度没有明显的降低,说明试纸有很好的重复使用性。由于该试纸对草酰氯有选择性的作用,因此可以对毒性草酰氯气体进行简便的可视化检测。Solid-state chemiluminescence based on three luminescent materials polyfluorenes （PF）, 5,5＇-bis （ 9,9-dioctyl-9H-fluoren-2-yl ） -2,2＇-bithiophene （ F-T-T-F ） and 4,7 -his （ 5 - （ 9,9-d-ipropyl-9H-fluoren-2-yl ） thiophen-2-yl） benzo[ c ] [ 1,2,5 ] thiadiazole （ 3 FT-BTD ） has been researched. Through fabricating the test paper with chemilumineseent materials absorbed onto the relative filter paper, the interaction between test paper and oxalyl chloride vapor was studied. Compared with the durations of chemiluminescence （CL） in solution system, that of solid-state CL based on the test paper could be greatly prolonged to 8 - 10 rain. Low detection limit for oxalyl chloride vapor has been achieved by this method, which are 0. 013 rag/m^3 （PF）, 0. 27 mg/m^3 （F-T-T-F） andl. 8 mg/m^3 （3FT-BTD） , respectively. The test paper can be exposed to the oxalyl chloride vapor over and over again, inducing CL without significant decrease of intensity, which proved a good reusability. Due to the selective effect for oxalyl chloride of the test paper, it provides a simple method of visual detection for toxic oxalyl chloride vapor.

关 键 词：固态化学发光 动力学 检测限 重复使用性 选择性 可视化检测 

分 类 号：O652[理学—分析化学]