Clinoptilolite-Based Conductometric Sensors for Detection of Ammonium in Aqueous Solutions

Saiapina Olga; Vronska Yelyzaveta; Dzyadevych SergeiJaffrezic-Renault Nicole

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Clinoptilolite-Based Conductometric Sensors for Detection of Ammonium in Aqueous Solutions

机译：Clinoptilolite-Based Conductometric Sensors for Detection of Ammonium in Aqueous Solutions

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New clinoptilolite-based conductometric sensors were developed and optimized for selective detection of ammonium in the buffered aqueous solutions. The sensors' selective elements were prepared by subsequent drop-casting of zeolite and Nafion on the gold electrode surface. Electrochemical impedance spectroscopy and differential conductometry were used to investigate the sensor performance. As determined in the phosphate buffer solution, the detection limit of the sensors was 30 mu M and the linear range 0-1.5 mM. The developed sensors were featured with a simple preparation procedure, high selectivity to NH4+ , and storage stability for not less than 126 days.

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《Electroanalysis》 |2020年第9期|1993-2001|共9页
作者
Saiapina Olga; Vronska Yelyzaveta; Dzyadevych SergeiJaffrezic-Renault Nicole;
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作者单位

Natl Acad Sci Ukraine, Inst Mol Biol & Genet, Dept Biomol Elect, 150 Acad Zabolotnyi Str, UA-03143 Kiev, Ukraine;

Taras Shevchenko Natl Univ Kyiv, Inst Biol & Med, 2 Acad Hlushkov Ave, UA-03022 Kiev, Ukraine;

Univ Claude Bernard Lyon 1, Analyt Sci Inst, 5 Rue Doua, F-69100 Villeurbanne, France;

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正文语种英语
中图分类电化学、电解、磁化学;
关键词
ammonium detection; selectivity studies; sensors; zeolites; working parameters;

Clinoptilolite-Based Conductometric Sensors for Detection of Ammonium in Aqueous Solutions

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