数字农科院2.0

Tracking Cadmium Transfer from Soil to Cup: An Electrochemical Sensing Strategy Based on Bi3+-Rich MOFs for Tea Safety Monitoring

文献类型： 外文期刊

作者： Jiaoling Wang;Zhengyin Ding;Xinxin Wu;Xindong Wang;Hao Li;Minchen Zhu;Xinai Zhang

作者机构：

关键词： cadmium detection;electrochemical sensor;heavy metal migration;metal–organic framework (MOF);tea safety evaluation

期刊名称： Foods

ISSN： 2304-8158

年卷期： 2025 年 14 卷 21 期

页码：

收录情况： SCIE（2025版）

摘要： Tea is one of the most widely consumed beverages worldwide, yet increasing environmental cadmium (Cd2+) contamination poses a serious threat to consumer safety. Understanding the migration pathway of Cd2+ from contaminated soils through tea plants into brewed infusions is essential for comprehensive risk assessment across the entire tea supply chain. However, conventional analytical methods for Cd2+ detection are often time-consuming, labor-intensive, and unsuitable for rapid or on-site monitoring. In this study, we developed a facile, sensitive, and selective electrochemical sensing platform based on a Bi3+-rich metal–organic framework (MOF(Bi)) for reliable Cd2+ quantification in various tea-related matrices. The MOF(Bi) was synthesized via a solvothermal method and directly immobilized onto a glassy carbon electrode (GCE) in a one-step modification process. To enhance Cd2+ preconcentration, cysteine was introduced as a complexing agent, while Nafion was employed to stabilize the sensing interface and improve reproducibility. The resulting Nafion/cys/MOF(Bi)/GCE sensor exhibited excellent sensitivity with a wide linear range from 0.2 and 25 μg/L, a low detection limit of 0.18 μg/L (S/N = 3), high selectivity against common interfering ions, and good stability. This platform enabled accurate tracking of Cd2+ transfer from polluted garden soil to raw tea leaves and finally into tea infusions, showing strong correlation with ICP-MS results. Our strategy not only offers a practical tool for on-site food safety monitoring but also provides new insights into heavy metal transfer behavior during tea production and consumption.

分类号：

  • 相关文献

[1]Dose-dependent effects of MIL-88A(Fe) and MIL-101(Fe) on arsenic immobilization and phytoremediation using ramie (Boehmeria nivea L.). Jian Ye,Xingyan Yin,Chunping Yang,Xiaofei Tan,Chuang Li,Gaobin Chen,Ping Chen,Qiang Chen,Mingyang Dai. 2025

[2]Rapid and Sensitive Determination of Dinotefuran Residue Based on Electrochemical Enhancement of beta-cyclodextrin-Graphene Composite. Zhang, M.,Zhai, X. C.,Yang, X.,Zhao, H. T.,Dong, A. J.,Zhang, H.,Wang, J.,Liu, G. Y.,Zhang, M.,Wang, J..

[3]A simple and sensitive electrochemical sensor for new neonicotinoid insecticide Paichongding in grain samples based on beta-cyclodextrin-graphene modified glassy carbon electrode. Zhang, M.,Zhao, H. T.,Yang, X.,Dong, A. J.,Zhang, H.,Wang, J.,Liu, G. Y.,Zhai, X. C.,Zhang, M.,Wang, J..

[4]Molecularly Imprinting Polymer Electrochemical Sensor Based on Structure of Metal Organic Frameworks for Determination of Phenylethanolamine A in Swine Urine. Zhang Chun-Yan,Shi Lei,Wang Pei-Long,Su Xiao-Ou. 2016

[5]A highly selective electrochemical sensor based on molecularly imprinted polypyrrole-modified gold electrode for the determination of glyphosate in cucumber and tap water. Zhang, Chao,She, Yongxin,Zhao, Fengnian,Jin, Maojun,Zheng, Lufei,Wang, Shanshan,Jin, Fen,Shao, Hua,Wang, Jing,Li, Tengfei,Guo, Yirong,Liu, Haijin.

[6]Application of Au based nanomaterials in analytical science. Wang, Peilong,Su, Xiaoou,Tang, Zhiyong,Lin, Zhenyu.

[7]An Electrochemical Bisphenol A Sensor B.ased On One Step E lectrochemical Reduction Of Cuprous Oxide Wrapped Graphene Oxide Nanoparticles Modified Electrode. Shi, RG, Liang, J, Zhao, ZS, Liu, AF, Tian, Y. 2017

[8]In Situ Determination Of Bisphenol A. In Beverage Using A Molybdenum Selenide/Reduced Graphene Oxide Nanoparticle Composite Modified Glassy Carbon Electrode. Shi, RG, Liang, J, Zhao, ZS, Liu, Y, Liu, AF. 2018

[9]An electrochemical sensor based on amino magnetic nanoparticle-decorated graphene for detection of cannabidiol. Yi Zhang,Zongyi You,Chunsheng Hou,Liangliang Liu,Aiping Xiao. 2021

[10]Dnazyme-amplified electrochemical biosensor coupled with ph meter for ca2+ determination at variable ph environments. Hui Wang,Fan Zhang,Yue Wang,Fangquan Shi,Qingyao Luo,Shanshan Zheng,Junhong Chen,Dingzhen Dai,Liang Yang,Xiangfang Tang,Benhai Xiong. 2022

[11]Electrochemical Sensor Based on Magnetic Molecularly Imprinted Polymer and Graphene-UiO-66 Composite Modified Screen-printed Electrode for Cannabidiol Detection. Xiaosheng Tang,Yong Gu,Ping Tang,Liangliang Liu. 2022

[12]Construction Of Zif-8/Aunps/Pvp-Rgo/Gce Electrochemical Sensor A.nd Its Sensitive Determination O f Salbutamol. Sun, SH, Zhao, RC, Hao, WW, Guo, HM, Shi, L, Su, XO. 2019

[13]A Highly Selective Electrochemical Sensor B.ased On Molecularly Imprinted P olypyrrole-Modified Gold Electrode For The Determination Of Glyphosate In Cucumber And Tap Water. Zhang, C, She, YX, Li, TF, Zhao, FN, Jin, MJ, Guo, YR, Zheng, LF, Wang, SS, Jin, F, Shao, H, Liu, HJ, Wang, J. 2017

[14]Electrochemical Detection of Olivetol Based on Poly(L-Serine) Film Layered Copper Oxide Modified Carbon Paste Electrode (p-L-Serine/CuO/CPE). Zongyi You,Yi Zhang,Shengwen Duan,Liangliang Liu. 2023

[15]Functional porous material-based sensors for food safety. Lei, Yanan,Cheng, Jie,Dong, Huanli,Wang, Peilong. 2024

[16]Electrochemical Determination of Hydrogen Peroxide Using a Covalent Organic Framework (COF) and Amino-Modified Multi-Walled Carbon Nanotubes by Differential Pulse Voltammetry (DPV). Li, Yan,Li, Yaru,Wu, Fubin,Zhou, Jie,Wang, Yaoyao,Li, Guoliang,Lan, Jing,Zhao, Zongshan,Shi, Rongguang. 2024

[17]Development of an origami paper-based electrochemical sensor using N-doped graphene for simultaneous detection of Cd(II), Pb(II), and Hg(II) in water. Jiaqi Wei,Linzhe Wang,Jingfang Hu,Wensong Wei,Yangchun Yang,Yu Song,Yansheng Li,Guowei Gao. 2025

[18]Simultaneous quantification of trace heavy metals in mushrooms using a three-dimensional highly reduced graphene oxide/Fe3O4 nanocomposite-based electrochemical sensor. Tian, Yiming,Zhong, Pingsheng,Zhou, Kai,Zheng, Lufei,Ren, Jiali. 2025

[19]Electrochemical sensors revolutionize plant nitrogen monitoring: Real-time, in situ detection for precision agriculture. Jiayao Wulan,Anqi Bao,Kai Li,Chaoyue Gu,Lidong Cao,Yuqing Lin. 2025

作者其他论文 更多>>