A carbon quantum dots-enhanced chemiluminescence method for the determination of gallic acid in food samples

2018 ◽  
Vol 65 (7) ◽  
pp. 883-887 ◽  
Author(s):  
Xiaoxia Chen ◽  
Junmei Zhang ◽  
Suqin Han ◽  
Haizhen Liu ◽  
Yao Du
Keyword(s):  
Quantum Dots ◽  
Gallic Acid ◽  
Carbon Quantum Dots ◽  
Food Samples ◽  
Chemiluminescence Method ◽  
Enhanced Chemiluminescence

A nitrogen doped carbon quantum dot-enhanced chemiluminescence method for the determination of Mn2+

2018 ◽  
Vol 10 (5) ◽  
pp. 541-547 ◽  
Author(s):  
Junmei Zhang ◽  
Xiaoxia Chen ◽  
Yue Li ◽  
Suqin Han ◽  
Yao Du ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ascorbic Acid ◽  
Ultrasonic Method ◽  
Carbon Quantum Dots ◽  
Chemiluminescence Method ◽  
Nitrogen Doped ◽  
Carbon Quantum Dot ◽  
Enhanced Chemiluminescence ◽  
Nitrogen Doped Carbon

Nitrogen doped carbon quantum dots (NCQDs) were synthesized via an ultrasonic method with ascorbic acid as the carbon source and ammonia as the nitrogen source.

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.

A chemiluminescence method for the determination of verapamil hydrochloride in pharmaceutical and environmental samples based on an Fe3O4 nanoparticles enhanced NaHCO3–H2O2 system

2017 ◽  
Vol 9 (47) ◽  
pp. 6705-6712 ◽  
Author(s):  
Mortaza Iranifam ◽  
Nasim Rahmati Hendekhale
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Environmental Samples ◽  
Chemiluminescence Method ◽  
Verapamil Hydrochloride ◽  
Enhanced Chemiluminescence ◽  
System P ◽  
H2o2 System

In this work, an Fe3O4 nanoparticles (NPs)-enhanced chemiluminescence (CL) method was developed for the determination of verapamil hydrochloride (VRP).

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