Alternative coulometric signal readout based on a solid-contact ion-selective electrode for detection of nitrate

被引:28
作者
Wang, Hemin [1 ,2 ]
Yuan, Baiqing [1 ]
Yin, Tanji [2 ,3 ,4 ]
Qin, Wei [2 ,3 ,4 ]
机构
[1] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Shandong, Peoples R China
[2] Chinese Acad Sci, Shandong Prov Key Lab Coastal Environm Processes, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai 264003, Shandong, Peoples R China
[3] Pilot Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 26620, Peoples R China
[4] Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
Coulometric signal; Solid-contact ion-selective electrode; Electrical double layer capacitance; Ordered mesoporous carbon; NO3-; MEMBRANE ELECTRODES; CARBON-BLACK; NITRITE; GRAPHENE; MICROSENSOR; REDUCTION; SENSORS; WATER;
D O I
10.1016/j.aca.2020.07.019
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Traditional potentiometric NO3--selective electrodes suffer from a fundamental limitation of the Nernst slope (59.1 mV/dec at 25 degrees C) due to the relationship between the potential and the logarithmic of ionic activity. Herein, a coulometric signal readout is proposed instead of the potentiometric response for detection of NCii based on an ordered mesoporous carbon (OMC)-based solid-contact ion-selective electrode (ISE). The mechanism for obtaining the coulometric signal is based on the electrical double layer capacitance of OMC compensating the potential change at the ion-selective membrane/solution interface during the measurements under the control of a constant applied potential. Under the optimized conditions, the coulometric signal for the OMC-based solid-contact NO3--ISE shows two linear responses in the activity range of 1.0 x 10(-6)-8.0 x 10(-6) M and 8.0 x 10(-6)-8.0 x 10(-4) M, and the detection limit is 4.0 x 10(-7) M (3 sigma/s). The proposed coulometric response also shows excellent reproducibility and stability in the presence of O-2 and CO2 and light on/off. Additionally, the coulometric response shows acceptable and reliable results for detection of NO3- in mineral water as compared to the traditional potentiometric response and the ion chromatography. This work provides a promising alternative signal readout for detection of ions by using solid-contact ion-selective electrodes. (C) 2020 Elsevier B.V. All rights reserved.
引用
收藏
页码:136 / 142
页数:7
相关论文
共 44 条
[11]   Tandem Electrochemical Desalination-Potentiometric Nitrate Sensing for Seawater Analysis [J].
Cuartero, Maria ;
Crespo, Gaston A. ;
Bakker, Eric .
ANALYTICAL CHEMISTRY, 2015, 87 (16) :8084-8089
[12]   Simultaneous underway analysis of nitrate and nitrite in estuarine and coastal waters using an automated integrated syringe-pump-based environmental-water analyzer [J].
Fang, Tengyue ;
Li, Peicong ;
Lin, Kunning ;
Chen, Nengwang ;
Jiang, Yiyong ;
Chen, Jixin ;
Yuan, Dongxing ;
Ma, Jian .
ANALYTICA CHIMICA ACTA, 2019, 1076 :100-109
[13]   Fullerene-based electrochemical buffer layer for ion-selective electrodes [J].
Fouskaki, Maria ;
Chaniotakis, Nikos .
ANALYST, 2008, 133 (08) :1072-1075
[14]   Improving the Sensitivity of Solid-Contact Ion-Selective Electrodes by Using Coulometric Signal Transduction [J].
Han, Tingting ;
Mattinen, Ulriika ;
Bobacka, Johan .
ACS SENSORS, 2019, 4 (04) :900-906
[15]   Influence of Electrode Geometry on the Response of Solid-Contact Ion-Selective Electrodes when Utilizing a New Coulometric Signal Readout Method [J].
Han, Tingting ;
Vanamo, Ulriika ;
Bobacka, Johan .
CHEMELECTROCHEM, 2016, 3 (12) :2071-2077
[16]   Reduced Graphene Oxide Films as Solid Transducers in Potentiometric All-Solid-State Ion-Selective Electrodes [J].
Hernandez, Rafael ;
Riu, Jordi ;
Bobacka, Johan ;
Valles, Cristina ;
Jimenez, Pablo ;
Benito, Ana M. ;
Maser, Wolfgang K. ;
Xavier Rius, F. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (42) :22570-22578
[17]   Rational design of all-solid-state ion-selective electrodes and reference electrodes [J].
Hu, Jinbo ;
Stein, Andreas ;
Buehlmann, Philippe .
TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2016, 76 :102-114
[18]   Ion-Selective Electrodes with Colloid-Imprinted Mesoporous Carbon as Solid Contact [J].
Hu, Jinbo ;
Zou, Xu U. ;
Stein, Andreas ;
Buehlmann, Philippe .
ANALYTICAL CHEMISTRY, 2014, 86 (14) :7111-7118
[19]   Photoelectric current as a highly sensitive readout for potentiometric sensors [J].
Hun, Xu ;
Xiong, Xiaoli ;
Ding, Jiawang ;
Qin, Wei .
CHEMICAL COMMUNICATIONS, 2020, 56 (27) :3879-3882
[20]   Novel Ion-to-Electron Transduction Principle for Solid-Contact ISEs [J].
Hupa, Elisa ;
Vanamo, Ulriika ;
Bobacka, Johan .
ELECTROANALYSIS, 2015, 27 (03) :591-594