A new multiwalled carbon nanotube/copolymer based Ag (I) carbon paste electrode for potentiometric measurements

被引：10

作者：

Sohrabi-Gilani, Nastaran ^{[1
]}

Nasirtabrizi, Mohammad Hossein ^{[1
]}

Jadid, Aiyoub Parchehbaf ^{[1
]}

机构：

[1] Islamic Azad Univ, Dept Chem, Ardabil Branch, Ardebil, Iran

来源：

MEASUREMENT | 2018年 / 125卷

关键词：

Carbon paste electrode; Acetophenone oxime; Potentiometric; Multi-walled carbon nanotube; Ag (I); ATOMIC-ABSORPTION-SPECTROMETRY; GLYCIDYL METHACRYLATE POLYMERS; ION-SELECTIVE ELECTRODES; SCHIFF-BASE; TRACE SILVER; MEMBRANE-ELECTRODE; TECHNICAL REPORT; SENSOR; NANOTUBES; LIQUID;

D O I：

10.1016/j.measurement.2018.04.050

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For the first time, acetophenone oxime-functionalized glycidyl methacrylate-methyl acrylate copolymer (GMA-MA/APO) was synthesized, characterized and used as an ionophore in the construction of mull-walled carbon nanotube based Ag (I) carbon paste electrode (MWCNT/GMA-MA/APO). The construction, performance and application of this novel silver carbon paste electrode were described. The electrode exhibited a Nernstian response of 60.2 +/- 0.2 mVdecade(-1) for silver ion over a wide concentration range of 3.1 x 10(-7)-10(-1) M within pH range of 2-9. It had a low detection limit of 1.2 x 10(-7) M and short response time (5 s). It also showed a good selectivity for a long lifetime (2 months). Finally, the developed modified electrode was successfully applied in the potentiometric titration of bromide and chloride mixture and direct determination of silver content in radiological film and different environmental water samples with satisfactory results.

引用

页码：84 / 91

页数：8

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