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首页> 外文期刊>Electroanalysis >Graphite electrode coated with a 7,16-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-multiwalled carbon nanotube composite as sensor for detection of samarium
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Graphite electrode coated with a 7,16-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-multiwalled carbon nanotube composite as sensor for detection of samarium

机译:涂有7,16-二苄基-1,4,10,13-四氧杂-7,16-二氮杂环十八烷-多壁碳纳米管复合物的石墨电极,用于检测sensor

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摘要

A composite multiwalled carbon nanotube polyvinyl chloride electrode based on 7,16-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DBDA18C6) as Sm3+ ionophore is reported. This potentiometric sensor showed a wide linear working range, 1×10-2-1×10-8M, Nernstian slope, 20.2±0.48mV per decade and a limit of detection, 6.3±0.36×10-9M. It works in the pH range 2.5-8.5 and shows a good selectivity over a number of metal ions. It has been found suitable for the analysis of ores and industrial effluents. The electrode surface is characterized by FRA and AFM.
机译:报道了一种基于7,16-二苄基-1,4,10,13-四氧杂-7,16-二氮杂环十八烷(DBDA18C6)作为Sm3 +离子载体的复合多壁碳纳米管聚氯乙烯电极。该电位计传感器具有宽的线性工作范围,1×10-2-1×10-8M,能斯特斜率,每十倍20.2±0.48mV和检测极限6.3±0.36×10-9M。它在2.5-8.5的pH范围内起作用,对多种金属离子显示出良好的选择性。已发现它适用于矿石和工业废水的分析。电极表面的特征是FRA和AFM。

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