Solid-contact Potentiometric Sensor for the Determination of Total Ammonia Nitrogen in Seawater

doi:10.20964/2017.04.01

	Solid-contact Potentiometric Sensor for the Determination of Total Ammonia Nitrogen in Seawater
	Ding, Lan 1,2; Ding, Jiawang 2; Ding, Baojun 1; Qin, Wei2
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN	1452-3981
	2017-04-01
卷号	12 期号:4 页码:3296-3308
关键词	Ammonia Hydrogel Gas Permeable Membrane Solid-contact Ion-selective Electrode Seawater
研究领域	Electrochemistry
DOI	10.20964/2017.04.01
产权排序	[Ding, Lan; Ding, Baojun] Dalian Univ Technol, Sch Chem, Dalian 116024, Liaoning, Peoples R China; [Ding, Lan; Ding, Jiawang; Qin, Wei] Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Prov Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai 264003, Shandong, Peoples R China
作者部门	海岸带环境过程实验室
英文摘要	A solid-contact potentiometric sensor for in situ detection of total ammonia nitrogen (TAN, free ammonia plus the ammonium ion) in seawater is described. In the compact system, an all-solid-state polymeric membrane ammonium-seletive electrode is integrated with a polyvinyl alcohol hydrogel buffer film of pH 7.0 and a gas-permeable membrane. The gaseous NH3 in seawater diffuses through the gas-permeable membrane and is converted to NH4+ in the hydrogel buffer, which can be potentiometrically sensed by the solid-contact ammonium-sensitive membrane electrode. The electrode configuration facilitates the alteration of NH3 to NH4+ in the hydrogel buffer film and improves the sensitivity for the detection of TAN by the buffer trap effect. The gas-permeable membrane effectively eliminates the ion interferences from the seawater sample matrixes. The proposed sensor shows a stable potentiometric response in the concentration range of 10(-6) - 10(-4) M with a detection limit of 6.4 x 10(-7) M, and has been successfully applied to the detection of TAN in seawater.
文章类型	Article
资助机构	National Natural Science Foundation of China(21107008 ; Taishan Scholar Program of Shandong Province ; Chinese Academy of Sciences(XDA11020702) ; 21475148 ; 21575158)
收录类别	SCI
语种	英语
关键词[WOS]	ION-SELECTIVE ELECTRODES ; POLYMERIC MEMBRANE ELECTRODES ; FLUORESCENCE DETECTION ; SPECTROPHOTOMETRIC DETECTION ; DETECTION LIMITS ; FLOW-INJECTION ; GAS SENSORS ; WATERS ; PH ; COEFFICIENTS
研究领域[WOS]	Electrochemistry
WOS记录号	WOS:000402199900057
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/22528
专题	中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Dalian Univ Technol, Sch Chem, Dalian 116024, Liaoning, Peoples R China 2.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Prov Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai 264003, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Ding, Lan,Ding, Jiawang,Ding, Baojun,et al. Solid-contact Potentiometric Sensor for the Determination of Total Ammonia Nitrogen in Seawater[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2017,12(4):3296-3308.
APA	Ding, Lan,Ding, Jiawang,Ding, Baojun,&Qin, Wei.(2017).Solid-contact Potentiometric Sensor for the Determination of Total Ammonia Nitrogen in Seawater.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,12(4),3296-3308.
MLA	Ding, Lan,et al."Solid-contact Potentiometric Sensor for the Determination of Total Ammonia Nitrogen in Seawater".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 12.4(2017):3296-3308.