分析化学2024，Vol.52Issue(5)：645-652,8.DOI:10.19756/j.issn.0253-3820.231473
基于电化学传感的海水碳循环要素多参数同时检测系统的研制
Development of an Electrochemical Sensing System for Simultaneous Detection of Species Relevant to Carbon Cycle in Seawater
摘要
Abstract
A portable electrochemical sensing system for simultaneous detection of species relevant to carbon cycle(i.e.,Ca2+,CO32-and pH)in seawater was developed,in which a highly sensitive polymeric membrane ion-selective electrode array with NiCo2S4-based transduction layer was used as the core element.Such an electrochemical sensor array was developed via the combination of all-solid-state ion selective electrode technology and electrode integration technology based on screen printing.The proposed sensing system offered the linear response concentration ranges of 1.0×10-5-1.0×10-1 mol/L and 3.2×10-5-1.9×10-3 mol/L for Ca2+,CO32-and 5-9 for pH in 0.5 mol/L NaCl background,respectively,as well as a relative deviation of less than 2.0%for evaluation of detection accuracy(mean deviation compared to the readings of reference techniques).For successive measurements,the relative standard deviations(RSDs)of less than 2.5%were obtained.The proposed electrochemical sensing system was successfully used for seawater analysis,and the whole analysis process could be completed within 15 min.关键词
电化学传感器/碳循环要素/海水分析/多参数检测/聚合物膜离子选择性电极Key words
Electrochemical sensor/Species relevant to the carbon cycle/Seawater analysis/Multi-parameter detection/Polymeric membrane ion-selective electrode引用本文复制引用
刘晓琳,廖志博,韩京龙,江天甲,秦伟..基于电化学传感的海水碳循环要素多参数同时检测系统的研制[J].分析化学,2024,52(5):645-652,8.基金项目
国家自然科学基金项目(No.U2006208)、山东省泰山学者项目(No.TSPD20181215)、中国科学院海洋大科学研究中心重点部署项目(No.COMS2020J06)、中国科学院青年创新促进会人才项目(No.2023221)和烟台市科技计划项目(No.2022MSGY065)资助. Supported by the National Natural Science Foundation of China(No.U2006208),the Taishan Scholar Program of Shandong Province(No.TSPD20181215),the Key Deployment Project of Centre for Ocean Mega-Research of Science,Chinese Academy of Sciences(No.COMS2020J06),the Youth Innovation Promotion Association of Chinese Academy of Sciences(No.2023221),and the Science and Technology Project of Yantai City(No.2022MSGY065). （No.U2006208）
