scholarly journals A Breakthrough Application of a Cross-Linked Polystyrene Anion-Exchange Membrane for a Hydrogencarbonate Ion-Selective Electrode

Sensors ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 1268 ◽  
Author(s):  
Sylwia Dabrowska ◽  
Jan Migdalski ◽  
Andrzej Lewenstam
Keyword(s):  
Diffusion Processes ◽  
Anion Exchange Membrane ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Drinking Waters ◽  
Polystyrene Matrix ◽  
Anion Site ◽  
Exchange Membrane ◽  
Interfering Ions

Polystyrene cross-linked with divinylbenzene and functionalized by a quaternary ammonium cation anion site is used as the membrane of a hydrogencarbonate (i.e., bicarbonate) ion-selective electrode. The polystyrene matrix membrane improves the selectivity towards interfering lipophilic ions in comparison to previously described polyvinyl chloride membranes. The reason for this behaviour is sought in coupled ion-exchange and pore-diffusion processes in the membrane and the resulting kinetic discrimination of interfering ions. The electrode is successfully used for determination of bicarbonates in mineral drinking waters. The simplex method is employed to refine the analytical outcome.

Titration of sulphates and lead using lead ion selective electrode

1981 ◽  
Vol 46 (2) ◽  
pp. 368-376 ◽  
Author(s):  
Josef Veselý
Keyword(s):  
Ionic Strength ◽  
Electrode Surface ◽  
Salt Content ◽  
Ion Selective Electrode ◽  
Lead Ion ◽  
Selective Electrode ◽  
Limit Of Determination ◽  
Total Salt Content ◽  
Automatic Titration

Titration of sulphates with lead perchlorate employing lead ion selective electrode indication was studied using additions of various organic solvents at different pH' and ionic strength values. As the optimum emerged systems with 60-70% 1,4-dioxane, pH' 5.3-5.6. After dehydration with sodium hydroxide, dioxane must be freed from the electrode surface-oxidizing impurities by their reduction with sodium metal and subsequent distillation. The method was applied to determination of sulphates in mountain spring waters. Units of ppm can be determined; the limit of determination, however, depends considerably on the content of dioxane, total salt content in the sample, and speed of the semi-automatic titration. Lead can be determined with EDTA in concentrations down to c(Pb2+) = 5 . 10-6 mol l-1.

scholarly journals Using MoS2/Fe3O4 as Ion-Electron Transduction Layer to Manufacture All-Solid-State Ion-Selective Electrode for Determination of Serum Potassium

Chemosensors ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 155
Author(s):  
Yan Su ◽  
Ting Liu ◽  
Caiqiao Song ◽  
Aiqiao Fan ◽  
Nan Zhu ◽  
...  
Keyword(s):  
High Performance ◽  
Accurate Determination ◽  
Water Layer ◽  
Ion Selective Electrode ◽  
Potential Response ◽  
Selective Electrode ◽  
Response Measurement ◽  
Long Term Stability

As an essential electrolyte for the human body, the potassium ion (K+) plays many physiological roles in living cells, so the rapid and accurate determination of serum K+ is of great significance. In this work, we developed a solid-contact ion-selective electrode (SC-ISE) using MoS2/Fe3O4 composites as the ion-to-electron transducer to determine serum K+. The potential response measurement of MoS2/Fe3O4/K+-ISE shows a Nernst response by a slope of 55.2 ± 0.1 mV/decade and a low detection limit of 6.3 × 10−6 M. The proposed electrode exhibits outstanding resistance to the interference of O2, CO2, light, and water layer formation. Remarkably, it also presents a high performance in potential reproducibility and long-term stability.

Iodide Ion-Selective Electrode and Its Application to the Determination of Organic Compounds

1982 ◽  
Vol 29 (3) ◽  
pp. 163-167 ◽  
Author(s):  
Fu-Chung Chang ◽  
Wen-Lin Chang
Keyword(s):  
Organic Compounds ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Iodide Ion

Ion chromatographic determination of iodide in urine and serum using a tubular ion-selective electrode based on a homogeneous crystalline membrane

1997 ◽  
Vol 127 (1-2) ◽  
pp. 55-60 ◽  
Author(s):  
Agostinho A. Almeida ◽  
Xiao Jun ◽  
Jos� L. F. C. Lima
Keyword(s):  
Chromatographic Determination ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Urine And Serum

Potentiometric determination of iodipamide using an iodipamide ion-selective electrode

1990 ◽  
Vol 8 (4) ◽  
pp. 373-377 ◽  
Author(s):  
Shou-Zhuo Yao ◽  
Dei-Zhong Liu ◽  
Li-Hua Nie
Keyword(s):  
Ion Selective Electrode ◽  
Potentiometric Determination ◽  
Selective Electrode

Determination of urea in 10-?l blood serum samples with a urease reactor / ion-selective electrode cell

1983 ◽  
Vol 81 (1-2) ◽  
pp. 135-147 ◽  
Author(s):  
U. Thanei-Wyss ◽  
W. E. Morf ◽  
P. Lienemann ◽  
Z. Stefanac ◽  
I. Mostert ◽  
...  
Keyword(s):  
Blood Serum ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Serum Samples ◽  
Electrode Cell

Potentiometric determination of cyanide with an ion selective electrode. Application to cyanogenic glycosides in Sudan grasses

1971 ◽  
Vol 43 (7) ◽  
pp. 890-894 ◽  
Author(s):  
W. J. Blaedal ◽  
D. B. Easty ◽  
Laurens. Anderson ◽  
T. R. Farrell
Keyword(s):  
Ion Selective Electrode ◽  
Potentiometric Determination ◽  
Cyanogenic Glycosides ◽  
Selective Electrode
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