scholarly journals Zirconium(IV) Phosphoborate-Based Ion Selective Membrane Electrode for Potentiometric Determination of Ba(II) Ions

2017 ◽  
Vol 29 (2) ◽  
pp. 375-380 ◽  
Author(s):  
Sandeep Kaushal ◽  
Susheel K Mittal ◽  
Anirudh Pratap Singh ◽  
Pritpal Singh
Keyword(s):  
Potentiometric Determination ◽  
Membrane Electrode ◽  
Selective Membrane

Kinetic potentiometric determination of creatinine in serum with a picrate ion-selective membrane electrode.

1981 ◽  
Vol 27 (3) ◽  
pp. 455-457 ◽  
Author(s):  
E P Diamandis ◽  
T P Hadjiioannou
Keyword(s):  
Electrode Potential ◽  
Kinetic Method ◽  
Potentiometric Determination ◽  
Membrane Electrode ◽  
Selective Electrode ◽  
Creatinine Concentration ◽  
Analytical Recovery ◽  
Selective Membrane ◽  
Method R

Abstract We describe a new kinetic method for potentiometric determination of creatinine in serum, based on the creatinine--picrate reaction in alkaline medium (Jaffé reaction). The reaction is monitored with a picrate-selective electrode, and the increase in electrode potential during 270 s is measured and related directly to the creatinine concentration. Small cation-exchange columns are used to separate creatinine from interfering substances. Analytical recovery of creatinine added to serum was 100.7%. Results for a series of samples compared well with results obtained with a spectrophotometric method (r = 0.994).

scholarly journals Construction and Evaluation of Scopolamine Ion- Selective Electrode

2000 ◽  
Vol 68 (3) ◽  
pp. 247-261
Author(s):  
A. Shalaby ◽  
M. El-Maamly ◽  
H. Abdellatef
Keyword(s):  
Pharmaceutical Preparations ◽  
Electrode System ◽  
Potentiometric Determination ◽  
Membrane Electrode ◽  
Selective Membrane ◽  
Nernstian Slope ◽  
Ion Associate ◽  
Ph Range ◽  
Associate Species

The construction of plasticised PVC matrix-type scopolamine ion- selective membrane electrode and its use in the potentiometric determination of scopolamine in pharmaceutical preparations are described. It is based on the use of tlie ion-associate species, fonned by scopolainine cation and 5-nitrobarbitoric counter ion. The basic electrode peifonnance characteristics are evaluated according to IUPAC I-ecoininendatioiis. It exhibited a linear response for 1x10-2–1x10-5 M of scopolamine solutions with a cationic Nernstian slope over the pH range of 4-7. Common organic and inorganic cations showed negligible interference. Direct potentiometric determination of 1x10-2–1x10-5 M aqueous tubocurarine chloride using this membrane electrode system showed an average recovery of 99.05 with a mean standard deviation of 0.12. This electrode system was successfully applied to the potentiometric determination of scopolamine in some pharmaceutical preparations.

scholarly journals Potentiometric Determination of Silver(I) by Selective Membrane Electrode Based on Derivative of Porphyrin

2004 ◽  
Vol 20 (12) ◽  
pp. 1667-1672 ◽  
Author(s):  
Mohammad MAZLOUM ARDAKANI ◽  
Hossein DEHGHANI ◽  
Maryam JALAYER ◽  
Hamid R. ZARE
Keyword(s):  
Potentiometric Determination ◽  
Membrane Electrode ◽  
Selective Membrane
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