高等学校化学学报2012，Vol.33Issue(10)：2195-2198,4.DOI:10.7503/cjcu20111244
动态光散射技术用于氟离子的检测
Dynamic Light Scattering for Fluoride Ions Detection
摘要
Abstract
The cystea mine-capped CdTe quantum dots ( QDs) undergo spontaneous self-aggregation via NH—N hydrogen bonds. In the presence of F- , the aggregates disassembled due to the substitution of NH—F hydrogen bonds for NH—N hydrogen bonds. Thus, the hydrodynamic size of the QDs aggregates was decreased gradually as the concentration of F- increased. Here, a one-step sensitive method using dynamic light scattering (DLS) was introduced for directly detection of F-. The detection limit of this method was ca. 20 nmol/L. It was ca. 2 orders of magnitude lower than that of fluorscence methods and F- selective electrode, as reported previously.关键词
动态光散射/氟离子/量子点/团聚/水合粒径Key words
Dynamic light scattering/ Fluoride ion/ Quantum dots/ Aggregation/ Hydrodynamic size分类
化学化工引用本文复制引用
王青,杨丽燕,刘剑波,羊小海,王柯敏,嵇海宁,刘艳..动态光散射技术用于氟离子的检测[J].高等学校化学学报,2012,33(10):2195-2198,4.基金项目
国家自然科学基金(批准号:90606003,20805012)、科技部国际合作重大项目(批准号:2010DFB30300)、教育部"新世纪优秀人才支持计划"(批准号:NCET-09-0338)、湖南省高等学校青年骨干教师培养对象基金(2009年度)和湖南大学"青年教师成长计划"资助. （批准号:90606003,20805012）
