期刊
MICROCHEMICAL JOURNAL
卷 184, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.microc.2022.108182
关键词
Curcumin; UiO-66(Zr); Electrochemical sensor; Methyl parathion; Vegetables and fruits
An electrochemical sensor based on UiO-66(Zr) loaded curcumin (CCM) was designed for the sensitive detection of methyl parathion (MP). The electrode exhibited a wide linear range, low detection limit, excellent reproducibility and stability. It also showed outstanding sensing capabilities in the electrochemical detection of MP in vegetables and fruits samples.
As a typical organophosphorus pesticide, the widespread abuse of methyl parathion (MP) has seriously threat-ened the environment and human health. To realize the sensitive detection of MP, an electrochemical sensor based on Metal-Organic Framework UiO-66(Zr) loaded curcumin(CCM) was designed. UiO-66 with high porosity for adsorption property and CCM with unique electrochemical activity conspired to improve the sensitivity of the electrochemical sensor. The result indicated that the CCM/UiO-66 electrode was well fabricated and exhibited an enhanced electrochemical response to MP. Under optimal conditions, the CCM/UiO-66 electrode extended a wide linear range from 20 ng mL-1 to 20000 ng mL-1 and a low limit of detection of 0.98 ng mL-1. The fabricated electrode also showed excellent reproducibility and stability. Additionally, the electrode demonstrated outstanding sensing capabilities in the electrochemical detection of MP in vegetables and fruits samples.
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