Ion-selective carbon paste electrode based on new tripodal ligand for determination of cadmium (II)

被引：22

作者：

Abbastabar-Ahangar, Hossein ^{[1
,2
]}

Shirzadmehr, Ali ^{[1
]}

Marjani, Katayoun ^{[1
]}

Khoshsafar, Hamid ^{[1
]}

Chaloosi, Marzieh ^{[1
]}

Mohammadi, Leila ^{[1
]}

机构：

[1] Tarbiat Moallem Univ, Fac Chem, Tehran, Iran

[2] Young Researcher Club Iran, Tehran, Iran

来源：

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2009年 / 63卷 / 3-4期

关键词：

Cd(II); Carbon paste modified electrode; Potentiometry; Tripodal ligand; ATOMIC-ABSORPTION-SPECTROMETRY; MOLECULAR RECOGNITION; BIOLOGICAL SAMPLES; SENSORS; PB; CD;

D O I：

10.1007/s10847-008-9519-0

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new chemically modified carbon paste electrode for Cd(II) ions based on 3,5-dinitro-N-(tri-2-pyridyl methyl) benzamide (DNTPMBA) as an ionophore was prepared. The electrode exhibits a Nernstian response for Cd(II) ions over a wide concentration range (2.16 x 10(-7)-1.00 x 10(-1) mol L-1) with a slope of 30 +/- A 1 mV per decade. It has a response time of about 50 s and can be used for a period of 3 months with good reproducibility. Detection limit obtained in the optimal conditions was 1.82 x 10(-7) mol L-1. The electrode was successfully used for potentiometric determination of Cd(II) in well water. The pH influence and interference of some cations were also studied.

引用

页码：287 / 293

页数：7

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