Citation: Shuo Cao, Honglin Zeng, Jiaxin Zhou, Siyuan Shao, Fengrui Liu, Haoran Chen, Fang Chen. Determination of SO₂ in Food by Flow Injection Chemiluminescence with Carbon Dots as Sensitizer[J]. University Chemistry, ;2023, 38(2): 170-176. doi: 10.3866/PKU.DXHX202204064 shu

Determination of SO₂ in Food by Flow Injection Chemiluminescence with Carbon Dots as Sensitizer

School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Corresponding author: Fang Chen, fchen@hust.edu.cn
Received Date: 20 April 2022

The detection of sulfur dioxide is crucial for food safety. In this study, a flow injection chemiluminescence method for the determination of sulfur dioxide in food was established by using an acidic potassium permanganate sulfite system with carbon dots (CDs) as the sensitizer. Under the optimum experimental conditions, the linear range, and the detection limit of the method were 1.0 × 10^-5–3.0 × 10^-4 mol·L^-1 and 7.79 × 10^-6 mol·L^-1, respectively. The experiment is suitable for teaching instrument analysis to undergraduates. This experiment enables students to master the principle and application of chemiluminescence and flow injection analysis, learn the basic methods of scientific research, and improve their thinking ability.
- Flow injection,
- Chemiluminescence,
- Carbon dots,
- Sulfur dioxide,
- Food analysis
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沈阳化工大学材料科学与工程学院沈阳 110142

Determination of SO2 in Food by Flow Injection Chemiluminescence with Carbon Dots as Sensitizer

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通讯作者: 陈斌, bchen63@163.com

Determination of SO₂ in Food by Flow Injection Chemiluminescence with Carbon Dots as Sensitizer