In-situ formed selenium-enriched CoSe₂-FeSe₂/N-doped MWCNT heterostructure for detection of butralin in agricultural food commodities.

IF 10.4 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2026-10-10 DOI:10.1016/j.foodchem.2026.151554

Thangavelu Sakthi Priya, Shen-Ming Chen

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引用次数: 0

Abstract

The development of reliable electrochemical sensors is essential for monitoring hazardous agrochemicals that threaten food safety. Butralin (BTN), a carcinogenic dinitroaniline herbicide, can migrate from soil to edible crops, raising significant health concerns. In this work, a sensitive voltammetric sensor was developed using an in-situ formed, selenium-enriched CoSe₂@FeSe₂ (CFS) heterostructure integrated with N-doped multi-walled carbon nanotubes (N-MWCNTs). The CFS heterostructure promotes efficient charge transfer and enhances electrocatalytic activity, while N-doped MWCNTs improve conductivity and provide abundant active sites. The resulting composite (CFS/N-MWCNT) exhibited excellent analytical performance, with a low detection limit (0.013 μM), high sensitivity (3.751 μA μM^-1 cm^-2), and good repeatability. This sensor was successfully applied to determine BTN in real agricultural food samples, including vegetables and legumes, with satisfactory recovery. These results demonstrate the potential of the proposed platform for practical determination of BTN in agricultural food matrices.

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原位形成富硒CoSe2-FeSe2/ n掺杂MWCNT异质结构用于农业食品中butralin的检测。

开发可靠的电化学传感器对于监测威胁食品安全的有害农药至关重要。Butralin （BTN）是一种致癌的二硝基苯胺除草剂，它可以从土壤迁移到食用作物中，引起严重的健康问题。在这项工作中，利用原位形成的富硒CoSe2@FeSe2 （CFS）异质结构与n掺杂多壁碳纳米管（N-MWCNTs）集成，开发了一种灵敏的伏安传感器。CFS异质结构促进了有效的电荷转移，提高了电催化活性，而n掺杂的MWCNTs提高了电导率并提供了丰富的活性位点。CFS/N-MWCNT具有低检出限（0.013 μM）、高灵敏度（3.751 μA μM-1 cm-2）、重复性好等优点。该传感器成功地应用于实际农业食品样品（包括蔬菜和豆类）中BTN的测定，回收率令人满意。这些结果证明了该平台在实际测定农业食品基质中BTN的潜力。

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来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.