Mercury selective electrochemical sensor based on a double armed crown ether as ionophore

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	Mercury selective electrochemical sensor based on a double armed crown ether as ionophore
	Gupta Vinod K. ; Chandra Sudeshna ; Agarwal Shiva
发表期刊	Indian journal of chemistry
ISSN	0376-4710
	2003
卷号	42 期号:4 页码:813-818
通讯作者	Gupta Vinod K.
英文摘要	PVC based membranes of a double armed crown ether, N, N'-dibenzyl, 1,4,10,13-tetraoxa-7, 16-diaza cyclooctadecane (I) as ionophore with sodium tetra phenyl borate (NaTPB) as anion excluder and with many plasticizing solvent mediators have been prepared and used for Hg(II) ion determination. The membrane with DBBP (dibutyl butyl phosphonate ) as plasticizer with various ingredients in the ratio PVC: I: NaTPB: DBBP (150: 12: 2: 100) shows the best results in terms of working concentration range (3.1x10-5-1.0x10-tM) with a Nernstian slope (29.0′0.5 mV/decade of activity). The electrode works in the pH range 2.1-4.5. The response time of the sensor is 15s and it can be used for about 4 months in aqueous as well as in non-aqueous medium. It has good stability and reproducibility. The potentiometric selectivity coefficient values for mono-, di-, and trivalent cations are tabulated. The sensor is highly selective for Hg2+ in the presence of normal interferents like cadmium, silver, sodium and iron.
语种	英语
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/3081
专题	科研共享资源
推荐引用方式 GB/T 7714	Gupta Vinod K.,Chandra Sudeshna,Agarwal Shiva. Mercury selective electrochemical sensor based on a double armed crown ether as ionophore[J]. Indian journal of chemistry,2003,42(4):813-818.
APA	Gupta Vinod K.,Chandra Sudeshna,&Agarwal Shiva.(2003).Mercury selective electrochemical sensor based on a double armed crown ether as ionophore.Indian journal of chemistry,42(4),813-818.
MLA	Gupta Vinod K.,et al."Mercury selective electrochemical sensor based on a double armed crown ether as ionophore".Indian journal of chemistry 42.4(2003):813-818.

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