Sensitive recognition of ractopamine using GQDs-DPA as organic fluorescent probe.
J Mol Recognit
; 34(10): e2903, 2021 10.
Article
em En
| MEDLINE
| ID: mdl-33970548
ABSTRACT
A novel spectrofluorimetric sensing platform was designed for Ractopamine measurement in aqueous and plasma samples. d-penicillamine functionalized graphene quantum dots (DPA-GQDs) was utilized as a fluorescence probe, which was synthesized through the pyrolysis of citric acid in the presence of DPA. This one-pot down-top strategy causes to high-yield controllable synthesis method. The reaction time and probe concentration were optimized. Then, the fluorescence intensity of aqueous samples containing different Ractopamine concentrations and 500 ppm DPA-GQDs were measured at 25°C with an excitation wavelength of 274 nm. The sensing platform was also applied to detect Ractopamine in untreated plasma samples. The fluorescence spectroscopy technique responses indicated a linear relationship between the peak fluorescence intensity and ractopamine concentration in the range of 0.25-15 ppm with low limit of quantification of 0.25 ppm was for aqueous and plasma samples, respectively.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Fenetilaminas
/
Espectrometria de Fluorescência
/
Pontos Quânticos
/
Corantes Fluorescentes
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article