激光诱导荧光辅助激光诱导击穿光谱检测有源发光玻璃中的微量元素  

Detection of Trace Elements in Active Luminescent Glass Using Laser-induced Breakdown Spectroscopy Combined with Laser-induced Fluorescence

作　　者：李嘉铭[1] 褚应波 赵楠[1] 周冉[1] 易荣兴 郭连波[1] 李进延[1] 李祥友[1] 曾晓雁[1] 陆永枫[1] 

机构地区：[1]华中科技大学,武汉光电国家实验室(筹),激光与太赫兹功能实验室,武汉430074

出　　处：《分析化学》2016年第7期1042-1046,共5页Chinese Journal of Analytical Chemistry

基　　金：国家重大科学仪器设备开发专项(No.2011YQ160017);国家自然科学基金(Nos.61575073;51429501;613780314);中央高校基本科研业务费(No.HUST2015TS075)资助~~

摘　　要：在有源发光玻璃的制备过程中,通常需要掺杂微量元素,用于改善玻璃的发光性能,因此在生产过程中进行快速检测非常重要。本实验针对激光诱导击穿光谱技术(LIBS)分析玻璃中微量元素灵敏度不足的问题,利用激光诱导荧光辅助激光诱导击穿光谱技术(LIBS-LIF)检测了玻璃中3种微量元素Yb,Al和P。使用波长可调谐激光激发等离子体中的Yb+离子、Al原子和P原子,并对这3种粒子在激光诱导荧光中的跃迁过程进行了分析。结果表明,通过激光诱导荧光辅助激光诱导击穿光谱技术,Yb+离子、Al原子和P原子的光谱强度分别增强了23,50和8倍,大幅度提高了LIBS分析的灵敏度。In the preparation of active luminescent glass, trace elements are generally co-doped to improve the properties. To overcome the poor sensitivity of laser-induced breakdown spectroscopy （LIBS） on detecting trace elements in glass, this work utilized laser-induced breakdown spectroscopy combined with laser-induced fluorescence to detect trace Yb, A1 and P. A wavelength-tunable laser was used to excited Yb ions, Al atoms and P atoms. The transition process in laser-induced fluorescence was described. The results showed that the spectral intensities of Yb, Al and P were enhanced by 23, 50 and 8 times, respectively. LIBS sensitivity was greatly improved by combining laser-induced fluorescence.

关 键 词：激光诱导击穿光谱 激光诱导荧光 玻璃 微量元素 

分 类 号：O657.3[理学—分析化学] TQ171.734[理学—化学]