基于量子点检测Cu^(2+)的荧光传感器系统设计  

The Fluorescence Sensor System Design of Cu^(2+) Detection Based on Quantum Dots

作　　者：石怀文[1,2] 李淼[1] 曾新华[1] 张建[1] 郑守国[1] 

机构地区：[1]中国科学院合肥智能机械研究所,安徽合肥230031 [2]中国科学技术大学信息科学技术学院,安徽合肥230026

出　　处：《仪表技术》2012年第7期50-52,共3页Instrumentation Technology

基　　金：国家863高技术研究发展计划项目(SQ2010AA1000764003)

摘　　要：针对农业中重金属污染检测的环境和成本要求,文章设计了一种检测Cu2+的荧光传感器系统。首先介绍了量子点检测原理,然后描述了系统的硬件设计方案并进行了实验分析。实验数据表明荧光变化与浓度范围在5 nmol/L～500 nmol/L的Cu2+浓度对数(log10[Cu2+])成直线关系,线性度为0.987。该荧光传感器系统可对农业中寻求低成本,简单快速,小型化Cu2+及重金属离子的检测仪器提供参考。Aimed at environmental and cost requirements for heavy metal contamination detection in the agricul- ture, this paper designed a detection of Cu2＋ fluorescent sensor system. In this paper, it first introduces the detection principle of the quantum dots, and then describe the system hardware design and experimental analysis. The experimen- tal data shows that the change of fluorescence is linear with the common logarithm of Cu2＋ concentration whose range is between 5nmol/L and 500nmol/L and the linearity is 0.987. This fluorescent sensor system provides reference for low cost, rapid, simple and the miniaturization design for detecting the Cu2＋ and other heavy metal Ion in agriculture.

关 键 词：量子点 荧光传感器 CU2+ 

分 类 号：S12[农业科学—农业基础科学]