传感技术学报2017，Vol.30Issue(1)：48-53,6.DOI:10.3969/j.issn.1004-1699.2017.01.010
饮水中铅痕量的光波导高灵敏探测∗
High Sensitive Measurement of Lead Trace in Drinking Water Based on Optical Waveguide Configurations
摘要
Abstract
An high sensitive optical sensor utilizing double metal cladding waveguide is proposed. Bsaed on the ultra high order guided modes in this sensor confriguration which are ultra sensitive to the imaginary part of the refractive index of the guide wave layer as probe, and combining with the specific color rendering mechanism of lead chromium ion and diphenylcarbazone,we detect the trace amounts of lead ion in water. The theoretical and experi￣mental results indicate that the limit of detection has reached 1μg/L. This new method has a lot of advantages,such as lower specimen,shorter time,good real￣time,high stabilization,lower cost and so on. This new kind of sensor will has an important influence in the environment protection and food security of our country.关键词
导波光学/铅离子/吸收探测/水污染/高灵敏度Key words
guidewave optics/absorption detection/lead ion/water contsmination/high sensitivity分类
数理科学引用本文复制引用
肖平平,邓满兰,胡红武..饮水中铅痕量的光波导高灵敏探测∗[J].传感技术学报,2017,30(1):48-53,6.基金项目
国家自然科学基金项目(11664043,61168002)；江西省自然科学基金项目(20132BAB201048)；江西省教育厅科技落地计划项目( KJLD14089)；宜春市产学研科技合作项目( YCSKJJ2014001) （11664043,61168002）
