1
|
Li B, Xiang G, Huang G, Jiang X, He L. Self-exothermic reaction assisted green synthesis of carbon dots for the detection of para-nitrophenol and β-glucosidase activity. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
|
2
|
Zhu W, Zhou Y, Liu S, Luo M, Du J, Fan J, Xiong H, Peng H. A novel magnetic fluorescent molecularly imprinted sensor for highly selective and sensitive detection of 4-nitrophenol in food samples through a dual-recognition mechanism. Food Chem 2021; 348:129126. [PMID: 33515947 DOI: 10.1016/j.foodchem.2021.129126] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
In this study, surface imprinting, magnetic separation, and fluorescent detection were integrated to develop a dual-recognition sensor (MF-MIPs), which was used for highly selective and sensitive detection of 4-nitrophenol (4-NP) in food samples. Silane-functionalized carbon dots (Si-CDs) participated in the imprinting process and were uniformly distributed into the MIPs layers. MF-MIPs sensor exhibited a high fluorescence response and selectivity based on the dual-recognition mechanism of imprinting recognition and fluorescence identification. The relative fluorescence intensity of MF-MIPs sensor presented a good linear relationship in the range of 0.08-10 μmol·L-1 with a low limit of detection (23.45 nmol·L1) for 4NP. MF-MIPs sensor showed high anti-interference, as well as excellent stability and reusability. The 4-NP recovery from spiked food samples ranged from 93.20 to 102.15%, and the relative standard deviation was lower than 5.0%. Therefore, MF-MIPs sensor may be a promising method for 4-NP detection in food samples.
Collapse
Affiliation(s)
- Wenting Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yushun Zhou
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Shuai Liu
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Mei Luo
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Jun Du
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Jieping Fan
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Hailong Peng
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China.
| |
Collapse
|