铕
碲化镉光电
化学
醋酸
发光
光化学
比色法
色谱法
核化学
无机化学
分析化学(期刊)
材料科学
纳米技术
有机化学
光电子学
作者
Yan Liu,Haitao Dong,Wenzhu Zhang,Zhiqiang Ye,Guilan Wang,Jingli Yuan
标识
DOI:10.1016/j.bios.2010.03.010
摘要
A novel colorimetric luminescence sensor strip for the detection of indole-3-acetic acid (IAA) has been fabricated by using green emissive quantum dots of cadmium telluride (CdTe QDs) as a background layer and a red emissive europium chelate, [4'-(9-anthryl)-2,2':6',2''-terpyridine-6,6''-diyl]bis(methylenenitrilo) tetrakis(acetate)-Eu(3+) (ATTA-Eu(3+)), as a specific sensing layer coated on the surface of glass slide, respectively. The luminescence response of the sensor strip is given by the dramatic changes in emission colors from green to red at different IAA concentrations. This approach provides a simple, rapid, sensitive and accurate method for the detection of IAA without using any special scientific instruments.
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