چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان | مؤسسه علوم و صنایع غذایی |
| کد مقاله | 2090 |
| عنوان فارسی مقاله | Development of a fluorescence sensing assay based on N–S‑doped carbon dots and molecularly imprinted polymer for selective and sensitive detection of florfenicol in milk |
| عنوان لاتین مقاله | Development of a fluorescence sensing assay based on N–S‑doped carbon dots and molecularly imprinted polymer for selective and sensitive detection of florfenicol in milk |
| نمایه علمی معتبر | JCR |
| IF | 2.4 |
| عنوان نشریه | Journal of the Iranian Chemical Society |
| شماره نشریه | 2 |
| دوره | 20 |
| سال انتشار شمسی | 1401/11/12 |
| سال انتشار میلادی | 2023 |
| Antibiotic residues can cause serious health risks by contaminating products for human consumption, such as meat and milk. The present study developed a reliable and sensitive method based on spectrofluorometric detections to determine Florfenicol (FF) residues in milk samples. N–S co-doped carbon dots (CDs) were synthesized through a fast and straightforward microwave-assisted method with tri-ammonium citrate as precursor and thiourea as the sulfur source. The synthesis was performed under microwave irradiation at 400 W for 2.5 min. The CDs were incorporated into a molecularly imprinted polymer (MIP) prepared with (3-aminopropyl)triethoxysilane and tetraethoxysilane as the monomer and crosslinker, respectively. The CDs@MIP composite demonstrated excellent fluorescence stability with specific binding sites, which selectively accumulated FF as the target analyte and was used as a selective sensor for the fluorometric determination of FF. The photoluminescence intensity of the CDs@MIP composite was quenched in the presence of FF but not with other drugs or substances. This fact indicates the selective behavior of the new material toward FF as the template. Under optimal conditions, the relative fluorescence intensity of MIP-coated CDs decreased linearly with increasing the concentration of FF from 3.00 μmol L− 1 to 1.50 × 102 μmol L− 1, and its detection limit was 1.11 μmol L− 1. The new sensor was evaluated for FF detection in spiked milk samples and showed recoveries of 90.86–97.71%. The method proposed the advantages of simplicity, sensitivity, selectivity, and low cost. |
| نویسنده | نفر چندم مقاله |
|---|---|
| جواد فیضی | دوم |
| مسلم جهانی | اول |
