Highly fluorescent carbon quantum dots as nanoprobes for sensitive and selective determination of mercury (II) in surface waters

2017 ◽  
Vol 187 ◽  
pp. 149-155 ◽  
Author(s):  
Jianhao Hua ◽  
Jian Yang ◽  
Yan Zhu ◽  
Chunxi Zhao ◽  
Yaling Yang
Keyword(s):  
Quantum Dots ◽  
Surface Waters ◽  
Carbon Quantum Dots ◽  
Selective Determination ◽  
Fluorescent Carbon

Highly fluorescent carbon dots as nanoprobes for sensitive and selective determination of 4-nitrophenol in surface waters

2014 ◽  
Vol 182 (1-2) ◽  
pp. 51-59 ◽  
Author(s):  
Gaber Hashem Gaber Ahmed ◽  
Rosana Badía Laíño ◽  
Josefa Angela García Calzón ◽  
Marta Elena Díaz García
Keyword(s):  
Surface Waters ◽  
Carbon Dots ◽  
Selective Determination ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Synthesis of Fluorescent Carbon Quantum Dots from Dried Lemon Peel for Determination of Carmine in Drinks

2018 ◽  
Vol 34 (2) ◽  
pp. 164-168 ◽  
Author(s):  
Anmei Su ◽  
Di Wang ◽  
Xin Shu ◽  
Qingmei Zhong ◽  
Yongren Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Lemon Peel ◽  
Fluorescent Carbon

LUMINESCENT DETERMINATION OF SUGAR IN NATURAL HONEY

2020 ◽  
Vol 0 (4) ◽  
pp. 29-32
Author(s):  
B.M. GAREEV ◽  
◽  
A.M. ABDRAKHMANOV ◽  
G.L. SHARIPOV ◽  
◽  
...  
Keyword(s):  
Quantum Dots ◽  
Laboratory Test ◽  
Aqueous Solutions ◽  
Analytical Method ◽  
Sugar Content ◽  
Carbon Quantum Dots ◽  
Photoluminescence Intensity ◽  
Sucrose Content ◽  
Natural Honey

The photoluminescence of carbon quantum dots synthesized from natural honey and mixtures of honey and sugar has been studied. An increase in the sugar content leads to a decrease in the photoluminescence intensity without changing the shape of the luminescence spectrum of these quantum dots aqueous solutions, which is associated with a decrease in the yield of their synthesis in the sugar presence. The discovered effect can be used to detect sugar in honey. When examining five different market samples of flower honey using this method, two of them showed a significant decrease in the photoluminescence intensity. A laboratory test for compliance with GOST 19792-2017 Standard requirements established an excess of the sucrose content in these samples. Luminescent determination of sugar in honey does not require complicated equipment and can be used to develop a new analytical method for determining the sugar content in counterfeit natural honey.

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