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[1]李菊颖,方园,汪李红,等.基于罗丹明B衍生物的Hg2+选择性荧光探针的合成及性质[J].南京工业大学学报(自然科学版),2015,37(03):109-113.[doi:10.3969/j.issn.1671-7627.2015.03.020]
 LI Juying,FANG Yuan,WANG Lihong,et al.Synthesis and properties of fluorescent chemosensors for Hg2+ based on rhodamine-B direvative[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(03):109-113.[doi:10.3969/j.issn.1671-7627.2015.03.020]
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基于罗丹明B衍生物的Hg2+选择性荧光探针的合成及性质()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年03期
页码:
109-113
栏目:
出版日期:
2015-05-30

文章信息/Info

Title:
Synthesis and properties of fluorescent chemosensors for Hg2+ based on rhodamine-B direvative
文章编号:
1671-7627(2015)03-0109-05
作者:
李菊颖方园汪李红姚成
南京工业大学 理学院,江苏 南京 211800
Author(s):
LI Juying FANG Yuan WANG Lihong YAO Cheng
College of Science,Nanjing Tech University,Nanjing 211800,China
关键词:
罗丹明B衍生物 荧光探针 Hg2+识别
Keywords:
rhodamine-B direvatives fluorescent chemosensors Hg2+ recognition
分类号:
O621.2
DOI:
10.3969/j.issn.1671-7627.2015.03.020
文献标志码:
A
摘要:
通过席夫碱缩合反应将呋喃环和噻吩环分别引入罗丹明B母体,设计、合成了2例对Hg2+具有选择性识别作用的新型荧光探针RB-OO和RB-OS,探针结构通过核磁共振氢谱(1H NMR)、核磁共振碳谱(13C-NMR)及飞行时间质谱(TOF-MS)进行表征,并进一步研究这2例探针与Hg2+作用前后光谱性质的变化。结果表明:随着Hg2+的加入,RB-OO和RB-OS均产生了荧光增强的现象,并伴随着色度上的变化,可以应用于裸眼识别。2例探针与Hg2+作用均可以可逆地选择性识别Hg2+,不受其他阳离子干扰。由于Hg2+的嗜硫性,RB-OS对Hg2+具有更快的响应速度和更高的灵敏度。
Abstract:
Furan ring and thiophene ring were respectively introduced into the rhodamine-B through Schiff base condensation to construct two novel fluorescent chemosensors, RB-OO and RB-OS, which were selective in sensing Hg2+. The final structures of the two chemosensors were characterized by 1H nuclear magnetic resonance spectroscopy(1H NMR), 13C nuclear magnetic resonance spectroscopy(13C-NMR), and time of flight-mass spectroscopy(TOF-MS). And their spectral property for Hg2+ was analyzed as well. Results showed that the fluorescence intensities of the two chemosensors increased with the addition of Hg2+, along with the perceptibly color change, thus it could be used for naked-eye detection. The two chemosensors exhibited reversible recognition for Hg2+ but it could not be disturbed by other positive ions. Due to the high association constant between Hg2+ and sulfur, RB-OS had faster response rate and higher sensitivity for Hg2+ compared with RB-OO.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-05-18
基金项目:高等学校博士学科点专项科研基金(20123221110012)
作者简介:李菊颖(1988—),女,江苏泰兴人,硕士,主要研究方向为阳离子选择性荧光探针; 姚成(联系人),教授,E-mail:yaocheng@njtech.edu.cn.
引用本文:李菊颖,方园,汪李红,等.基于罗丹明B衍生物的Hg2+选择性荧光探针的合成及性质[J].南京工业大学学报:自然科学版,2015,37(3):109-113..
更新日期/Last Update: 2015-05-20