Dual-emission ratiometric probe combining carbon dots and CdTe quantum dots for fluorometric and visual determination of H2O2

2019 ◽  
Vol 296 ◽  
pp. 126665 ◽  
Author(s):  
Rafael C. Castro ◽  
José X. Soares ◽  
David S.M. Ribeiro ◽  
João L.M. Santos
Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1232
Author(s):  
Jiaqing Guo ◽  
Aikun Liu ◽  
Yutian Zeng ◽  
Haojie Cai ◽  
Shuai Ye ◽  
...  

The use of carbon dots (CDs) with dual emission based on ratiometric fluorescence has been attracting attention in recent times for more accurate ion detection since they help avoid interference from background noise, probe concentration, and complexity. Herein, novel dual-emission nitrogen-doped CDs (NCDs) were prepared by a simple method for Cu2+ and ClO- detection. The NCDs showed excellent anti-interference ability and selectivity for different emissions. In addition, a good linear relationship was observed between the fluorescence intensity (FI) of the NCD solutions in different emissions with Cu2+ (0–90 μM) and ClO- (0–75 μM). The limits of both Cu2+ detection and ClO- were very low, at 17.7 and 11.6 nM, respectively. The NCDs developed herein also showed a good recovery rate in water for Cu2+ and ClO− detection. Hence, they are expected to have a more extensive application prospect in real samples.


2014 ◽  
Vol 1 (2) ◽  
pp. 026202 ◽  
Author(s):  
Sarzamin Khan ◽  
Alex A Lima ◽  
Dunieskys G Larrudé ◽  
Eric C Romani ◽  
Ricardo Q Aucelio

2015 ◽  
Vol 7 (18) ◽  
pp. 7707-7714 ◽  
Author(s):  
Marcelo B. Lima ◽  
Stéfani Iury E. Andrade ◽  
Inakã S. Barreto ◽  
Mário César U. Araújo

In this work, a novel method for direct determination of total iron in viscous samples is presented.


Author(s):  
Minwei Zhang† ◽  
Hong Ping† ◽  
Xianyi Cao ◽  
Hongkun Li ◽  
Fengrui Guan ◽  
...  

2014 ◽  
Vol 145 ◽  
pp. 253-258 ◽  
Author(s):  
Mohammad-Hossein Sorouraddin ◽  
Amin Imani-Nabiyyi ◽  
Seyed Ali Najibi-Gehraz ◽  
Mohammad-Reza Rashidi

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