Ratio-fluorescence detection of tert-butylhydroquinone based on non-conjugated polymer dots and gold nanoclusters.
Food Chem
; 444: 138624, 2024 Jun 30.
Article
em En
| MEDLINE
| ID: mdl-38354655
ABSTRACT
A novel ratiometric fluorescent probe based on non-conjugated polymer dots (NCPDs) and gold nanocluster (AuNCs) was constructed to determine tert-butylhydroquinone (TBHQ). The probe exhibited dual emission peaks at 480 nm and 630 nm under 370 nm excitation. The fluorescence of AuNCs was quenched by TBHQ due to strong electrostatic interactions, whereas the emission of NCPDs increased. The ratio of fluorescence intensity at 480 nm to 630 nm (F480 / F630) was monitored as analytical signal response. The probe have been utilized for the detection of TBHQ with good linear relationship in the range of 0.2 to 60 µg/mL. The limit of detection (LOD) and the limit of quantitation (LOQ) were 0.048 µg/mL and 0.159 µg/L, respectively. Three levels of spiked-in TBHQ concentrations were obtained with recovery rates from 80 % to 102 %. The present study provided an effective ratiometric fluorescence method for selective screening of TBHQ in food samples.
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Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Pontos Quânticos
/
Nanopartículas Metálicas
/
Hidroquinonas
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Food Chem
Ano de publicação:
2024
Tipo de documento:
Article