PVC Membrane Potentiometric Sensor based on (E)-2-Acetyl-3-(butyl-amino)-N-phenyl buten-2-thioamide for Selective Determination of Iron(II)

被引：0
作者：
Yazdely, Malihe Ahmadian [1 ,2 ]
Taher, Mohammad Ali [1 ]
Tajik, Somayeh [1 ,2 ]
机构：
[1] Shahid Bahonar Univ Kerman, Dept Chem, Kerman 76169, Iran
[2] Shahid Bahonar Univ Kerman, Young Researchers Soc, Kerman, Iran
来源：
ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY | 2013年 / 5卷 / 04期
关键词：
Ion-Selective Electrode; Fe(II) Determination; PVC Membrane; Potentiometry; (E)-2-Acetyl-3-(butyl amino)-N-phenyl buten-2-thioamide;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this paper, the construction and performance characteristics of novel PVC membrane Fe(II) ion selective electrodes based on (E)-2-acetyl-3-(butyl amino)-N-phenyl buten-2-thioamide is described. The electrode exhibits linear responses with Nernstian slope of 30.0+0.2 mVdecade(-1) of activity within the Fe(II) ion concentration range of 3.5x10(-7) to 1.2x10(-2) M. This sensor is applicable in a pH range of 5.0-7.0. The lower detection limit is 1.6x10(-7) M. It has a response time less than 10 s and can be used practically for a period of at least 2 months without any measurable divergence in results. The isothermal temperature coefficient of the sensor was assessed 1.24x10(-3) V/degrees C. The electrode showed excellent selectivity towards Fe(II) ion over a wide range of alkali, alkaline earth, and transition metals ions. It was successfully applied for the direct determination of Fe(II) ions in real samples.
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页码：467 / 480
页数：14
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