CAJ | 학술논문

制备了以芘为敏感材料,聚苯乙烯(PS)以及聚氯乙烯(PVC)粉末为支持体系的两种荧光猝灭氧敏感膜.PS以及PVC氧敏感膜的最大激发波长分别为349 nm和355 nm,最大发射波长分别为399 nm和398 nm.分子氧对PS以及PVC氧敏感膜的荧光均有猝灭作用.同时,实验发现2,4,6-三硝基甲苯(TNT)和环三亚甲基三硝基胺(RDX)对这两种氧敏感膜的荧光也有一定的猝灭.
제비료이비위민감재료,취분을희(PS)이급취록을희(PVC)분말위지지체계적량충형광졸멸양민감막.PS이급PVC양민감막적최대격발파장분별위349 nm화355 nm,최대발사파장분별위399 nm화398 nm.분자양대PS이급PVC양민감막적형광균유졸멸작용.동시,실험발현2,4,6-삼초기갑분(TNT)화배삼아갑기삼초기알(RDX)대저량충양민감막적형광야유일정적졸멸.
This paper presents two fluorescence oxygen sensitive membranes with pyrene as their sensing material and PS or PVC polymer as their support system.The maximal activated wavelength of the pyrene-doped PS and pyrene-doped PVC oxygen sensitive membranes are 349 nm and 355 nm,respectively,and the maximal emitting wavelength are 399 nm and 398 nm,respectively.Fluorescence of the two oxygen sensitive membranes can be quenched effectively by molecular oxygen,and can be quenched by 2,4,6-trinitrotoluene (TNT) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) vapors.In this paper,preliminary study on the determination of TNT and RDX vapors based on fluorescence quenching of pyrene-doped oxygen sensitive membranes was described.