4.7 Article

Carbon dots-based fluorescent probe for the detection of imidacloprid residue in leafy vegetables

期刊

FOOD CHEMISTRY
卷 435, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2023.137578

关键词

Carbon dots; Pesticide residue detection; Leafy vegetables; O-phenylenediamine; Imidacloprid

向作者/读者索取更多资源

A carbon dots-based fluorescent probe prepared by hydrothermal method can rapidly detect the harm of excessive imidacloprid to the human body, and it has good selectivity, stability, and anti-interference ability. The probe shows excellent performance in detecting imidacloprid in lettuce, cole, spinach, and pakchoi.
Consumption of leafy vegetables with excessive imidacloprid (IMI) can cause serious harm to the human body. To achieve rapid IMI detection, a carbon dots (CDs)-based fluorescent (FL) probe was hydrothermally prepared using O-phenylenediamine as the precursor. The morphology, particle size distribution, crystal structure, optics and chemical bond state of the as-prepared CDs were characterized. The mechanism of the CDs in detecting IMI was investigated by Fourier transform infrared spectroscopy, and the CDs' selectivity, stability, sensitivity, and actual sample recovery were tested. The CDs showed good selectivity, stability, and anti-interference ability. Under optimum conditions, there was a strong linear relationship between the FL intensity of the CDs and the IMI concentration in the range of 0.037-0.2 mg/L. The detection limit was 0.00187 mg/kg. The CDs were successfully applied to detect IMI in lettuce, cole, spinach, and pakchoi with spiked recoveries between 81.026% and 106.803% and a relative standard deviation between 0.001 and 0.027%.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据