Determination of Clonidine by Potentiometry Using PVC Membrane Electrode

被引：0

作者：

Ganjali, Mohammad Reza ^{[1
,2
]}

Karimi, Anahita ^{[1
]}

Shahtaheri, Sayed Jamaleddin ^{[3
]}

Norouzi, Parviz ^{[1
,2
]}

机构：

[1] Univ Tehran, Ctr Excellence Electrochem, Tehran, Iran

[2] Univ Tehran Med Sci, Endocrinol & Metab Res Ctr, Tehran, Iran

[3] Univ Tehran Med Sci, Sch Publ Hlth, Dept Occupat Hlth, Environm Res Ctr, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2013年 / 8卷 / 02期

关键词：

Clonidine; Potentiometric Sensor; PVC membrane Electrode; Ion-Pair; COMPOSITE CARBON-PASTE; ION-SELECTIVE ELECTRODE; PHARMACEUTICAL FORMULATION; LANTHANIDE RECOGNITION; QUANTITATIVE-ANALYSIS; ANION RECOGNITION; SENSING MATERIAL; SENSOR; HYDROCHLORIDE; CONSTRUCTION;

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：

PVC membrane potentiometric sensor was made for determination of Clonidine in pharmaceutical formulations. The electrode respond based on ion-exchange mechanism. The ion-pair used as a sensing element in PVC membrane composition was synthesized by interaction of Clonidine hydrochloride and tetraphenyl borate. The best PVC membrane sensor response was obtained by a membrane composition of 30% PVC, 62% DBP, 6% ion-pair and 2% ionic liquid. The proposed method was successfully applied in determination of Clonidine in some formulations. The proposed sensor showed a linear dynamic range between 7.0x10(-6)-1.0x10(-2) M of Clonidine with a Nernstian slope of (58.3+/-0.4) mV decade(-1) and a detection limit of 6.5x10(-6) M. The proposed electrode displayed fast response time about 10 s, and lifetime of about six weeks without any significant change in its performance.

引用

页码：1999 / 2008

页数：10

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