Stepwise titration of some anion mixtures and determination of Ksp of silver precipitates with silver ion selective electrode

1976 ◽  
Vol 48 (2) ◽  
pp. 267-271 ◽  
Author(s):  
Eric E. Chao ◽  
K. L. Cheng
Keyword(s):  
Silver Ion ◽  
Ion Selective Electrode ◽  
Selective Electrode

Volumetric determination of cobalt in Co-Sm-Fe alloys using a silver ion selective electrode in aqueous dimethylformamide and in water

1979 ◽  
Vol 44 (6) ◽  
pp. 1742-1746 ◽  
Author(s):  
Adam Košturiak ◽  
Dagmar Kalavská
Keyword(s):  
Aqueous Solution ◽  
Silver Nitrate ◽  
Silver Ion ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Back Titration ◽  
Volumetric Determination ◽  
Excess Sodium ◽  
Fe Alloys

A procedure is suggested for direct volumetric determination of cobalt with a sodium diethyldithiocarbaminate titrant solution in the medium of 80% dimethylformamide, using indication with a silver ion selective electrode. The procedure was applied to the cobalt determination in Co-Sm-Fe alloys. The method was adapted for the determination of cobalt in aqueous solution by back titration of excess sodium diethyldithiocarbaminate with a silver nitrate titrant solution or with generated Ag(I), using the same indication or biamperometric indication.

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.

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