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  4. 中科院海岸带环境过程与生态修复重点实验室
Toward Reliable Environmental Monitoring with Potentiometric Ion Sensors: Unveiling the Effects of Humic Acids and Developing Antifouling Sensors Based on a Poly(vinylidene fluoride) Coating

文献类型：期刊论文

作者Liu, Yuanxin3,5; Liao, Zhibo5; Yang, Wei5; Qi, Longbin2,5; Qin, Wei1,4,5
刊名ANALYTICAL CHEMISTRY
出版日期2026-03-17
卷号98期号:10页码:7443-7451
ISSN号0003-2700
DOI10.1021/acs.analchem.5c06911
通讯作者Qi, Longbin(lbqi@yic.ac.cn) ; Qin, Wei(wqin@yic.ac.cn)
英文摘要Although potentiometric ion sensors have attracted growing interest in the environmental analysis of water quality, reliable long-term continuous monitoring with these sensors remains a great challenge. Fouling of the sensor membranes can seriously impair analytical performance. As a major fraction of natural organic matter, humic acids (HAs) are widespread in natural waters. Here, for the first time, we investigated the influences of HAs as foulants on polymeric membrane ion-selective electrodes (ISEs). It was found that HAs could adsorb on the sensor surface and penetrate the membranes, thus causing potential drifts and reduced sensitivity. To mitigate these effects, we modified the ISEs with a poly(vinylidene fluoride) coating. Owing to its low surface energy and high electronegativity, the functional layer could significantly enhance the resistance of the sensors to HAs. The practical applications of the proposed environ-compatible sensors were validated via long-term (30 days) in situ monitoring of CO3 2- (pCO2) in the coastal area of the Yellow Sea of China. These findings may provide new insights into reliable environmental monitoring with potentiometric ion sensors.
WOS关键词SELECTIVE ELECTRODES ; MEMBRANE ELECTRODES ; SURFACE ; SUBSTANCES ; ADSORPTION ; MECHANISM ; PROTEIN ; SYSTEM ; SEA
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001706567100001
资助机构Taishan Scholar Project of Shandong Province ; Natural Science Foundation of Shandong Province ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China
源URL[http://ir.yic.ac.cn/handle/133337/42207]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Qi, Longbin; Qin, Wei
作者单位1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China
5.Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yuanxin,Liao, Zhibo,Yang, Wei,et al. Toward Reliable Environmental Monitoring with Potentiometric Ion Sensors: Unveiling the Effects of Humic Acids and Developing Antifouling Sensors Based on a Poly(vinylidene fluoride) Coating[J]. ANALYTICAL CHEMISTRY,2026,98(10):7443-7451.
APA Liu, Yuanxin,Liao, Zhibo,Yang, Wei,Qi, Longbin,&Qin, Wei.(2026).Toward Reliable Environmental Monitoring with Potentiometric Ion Sensors: Unveiling the Effects of Humic Acids and Developing Antifouling Sensors Based on a Poly(vinylidene fluoride) Coating.ANALYTICAL CHEMISTRY,98(10),7443-7451.
MLA Liu, Yuanxin,et al."Toward Reliable Environmental Monitoring with Potentiometric Ion Sensors: Unveiling the Effects of Humic Acids and Developing Antifouling Sensors Based on a Poly(vinylidene fluoride) Coating".ANALYTICAL CHEMISTRY 98.10(2026):7443-7451.

入库方式： OAI收割

来源：烟台海岸带研究所

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