PVC Membrane Potentiometric Sensor Based on 5-Pyridino-2,8-dithia[9](2,9)-1,10-phenanthroline- phane for Selective Determination of Neodymium(III)

2005 ◽  
Vol 77 (1) ◽  
pp. 276-283 ◽  
Author(s):  
Mojtaba Shamsipur ◽  
Morteza Hosseini ◽  
Kamal Alizadeh ◽  
Mir Fazlollah Mousavi ◽  
Alessandra Garau ◽  
...  
Keyword(s):  
Potentiometric Sensor ◽  
Pvc Membrane ◽  
Selective Determination

scholarly journals Membrane Sensors for the Selective Determination of Donepezil Hydrochloride

2010 ◽  
Vol 93 (2) ◽  
pp. 549-555 ◽  
Author(s):  
Gamal Abdel Hafiz Mostafa ◽  
Mohamed Hefnawy ◽  
Abdulrahman Al-Majed
Keyword(s):  
Direct Determination ◽  
Pharmaceutical Preparations ◽  
Ion Association ◽  
Phosphomolybdic Acid ◽  
Hplc Method ◽  
Pvc Membrane ◽  
Selective Determination ◽  
Response Characteristics ◽  
Sodium Tetraphenyl Borate

Abstract The construction and electrochemical response characteristics of polyvinylchloride (PVC) membrane sensors for donepezil HCl (DP) are described. The sensing membranes incorporated ion-association complexes of DP cation and sodium tetraphenyl borate (sensor 1), phosphomolybdic acid (sensor 2), or phosphotungstic acid (sensor 3) as electroactive materials. The sensors displayed a fast, stable, and near-Nernstian response over a relatively wide DP concentration range (1 102 to 1 106 M), with cationic slopes of 53.0, 54.0, and 51.0 mV/ concentration decade over a pH range of 4.0 to 8.0. The sensors showed good discrimination of DP from several inorganic and organic compounds. The direct determination of 2.54000.0 g/mL DP showed average recoveries of 99.0, 99.5, and 98.5, and mean RSDs of 1.6, 1.5, and 1.7 at 100.0 g/mL for sensors 1, 2, and 3, respectively. The proposed sensors have been applied for direct determination of DP in two pharmaceutical preparations. The results obtained for determination of DP in tablets using the proposed sensors compared favorably with those obtained using an HPLC method. The sensors have been used as indicator electrodes for potentiometric titration of DP.

scholarly journals An all-solid-state imprinted polymer-based potentiometric sensor for determination of bisphenol S

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 73308-73312 ◽  
Author(s):  
Tiantian Wang ◽  
Rongning Liang ◽  
Tanji Yin ◽  
Ruiqing Yao ◽  
Wei Qin
Keyword(s):  
Solid State ◽  
Potentiometric Sensor ◽  
Polymeric Membrane ◽  
Imprinted Polymer ◽  
Bisphenol S ◽  
Selective Determination ◽  
First Time

An all-solid-state polymeric membrane potentiometric sensor for sensitive and selective determination of bisphenol S is developed for the first time.

Methylene blue potentiometric sensor for selective determination of sulfide ions

2002 ◽  
Vol 466 (1) ◽  
pp. 47-55 ◽  
Author(s):  
Saad S.M Hassan ◽  
Sayed A.M Marzouk ◽  
Hossam E.M Sayour
Keyword(s):  
Methylene Blue ◽  
Potentiometric Sensor ◽  
Selective Determination ◽  
Sulfide Ions

A novel potentiometric sensor for selective determination of theophylline: Theoretical and practical investigations

2005 ◽  
Vol 548 (1-2) ◽  
pp. 192-198 ◽  
Author(s):  
Siavash Riahi ◽  
Mir Fazllolah Mousavi ◽  
S. Zahra Bathaie ◽  
Mojtaba Shamsipur
Keyword(s):  
Practical Investigations ◽  
Potentiometric Sensor ◽  
Selective Determination
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