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首页> 外文期刊>Electroanalysis >Highly selective and sensitive copper(II) membrane sensors based on 6-methyl-4-(1-phenylmethylidene) amino-3-thioxo-1,2,4-triazin-5-one as a new neutral ionophore
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Highly selective and sensitive copper(II) membrane sensors based on 6-methyl-4-(1-phenylmethylidene) amino-3-thioxo-1,2,4-triazin-5-one as a new neutral ionophore

机译：基于6-甲基-4-（1-苯基亚甲基）氨基-3-硫代-1,2,4-三嗪-5-酮作为新型中性离子载体的高度选择性和灵敏的铜（II）膜传感器

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摘要

A new Cu(II) ion-selective PVC membrane sensor based on 6-methyl-4-(1-phenylmethylidene)amino-3-thioxo-1,2,4-triazin-5-one (MATTO) as an excellent sensing material was developed. The electrode exhibits a Nernstian slope of 29.2 +/- 0.4 mV per decade over a very wide concentration range between 1.0 x 10(-1) and 1.0 x 10(-6) M, with a detection limit of 4.8 x 10(-7) M (30.5 ng/mL). The sensor possesses the advantages of short conditioning time, fast response time (< 10 s), and especially, very good selectivity towards transition and heavy metal, and some mono, di and trivalent cations. The proposed electrode was successfully applied to the determination of copper in wastewater of copper electroplating samples and as an indicator electrode in potentiometric titration of Cu(II) ions with EDTA.
机译：基于6-甲基-4-（1-苯基亚甲基）氨基-3-硫代-1,2,4-三嗪-5-酮（MATTO）作为优良传感材料的新型Cu（II）离子选择性PVC膜传感器已开发。电极在1.0 x 10（-1）和1.0 x 10（-6）M的非常宽的浓度范围内，每十倍频程的Nernstian斜率显示为29.2 +/- 0.4 mV，检测极限为4.8 x 10（-7） ）M（30.5 ng / mL）。该传感器具有以下优点：调节时间短，响应时间快（<10 s），尤其是对过渡金属和重金属以及一些单价，二价和三价阳离子的选择性非常好。所提出的电极已成功地用于测定电镀铜样品废水中的铜，并作为指示电极用EDTA电位滴定法测定Cu（II）离子。

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