Determination of thiocyanate at the P. p. m. level in waters using an ion-selective electrode with liquid membrane: An automated procedure

1979 ◽  
Vol 72 (5-6) ◽  
pp. 455-466 ◽  
Author(s):  
Takashi Korenaga
Keyword(s):  
Liquid Membrane ◽  
Ion Selective Electrode ◽  
Selective Electrode

Development of highly selective potentiometric thorium(iv) ion-selective electrode: exploration supported with optical and DFT analysis

2019 ◽  
Vol 11 (10) ◽  
pp. 1338-1345 ◽  
Author(s):  
Selva Kumar R. ◽  
S. K. Ashok Kumar ◽  
Kari Vijayakrishna ◽  
Akella Sivaramakrishna ◽  
C. V. S. Brahmmananda Rao ◽  
...  
Keyword(s):  
Liquid Membrane ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Selective Determination ◽  
Ion Carrier

A new liquid membrane based on PVC composed of L as neutral ion carrier, NaTPB as lipophilic salt dissolved in DOP as plasticizer was developed for selective determination of Th4+.

scholarly journals Studies on a Pb2+ - selective electrode with a macrocyclic liquid membrane: Potentiometric determination of pb2+ ions

2006 ◽  
Vol 71 (12) ◽  
pp. 1345-1352 ◽  
Author(s):  
Marian Isvoranu ◽  
Constantin Luca ◽  
Maria Pleniceanu ◽  
Cezar Spinu
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Liquid Membrane ◽  
Theoretical Data ◽  
Absorption Spectrometry ◽  
Systematic Errors ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Active Complex ◽  
Direct Potentiometry

This paper presents experimental and theoretical data regarding the design, characterization and analytical applications of a non-expensive, liquid-membrane ion-selective electrode for Pb2+ ions. The membrane is a solution of the active complex formed by Pb2+ ions with dibenzo-18-crown-6-ionophore (DB-[18]-C-6) extracted in propylene carbonate (PC). The successful application of the developed electrode for the determination of Pb2+ ions in aqueos solution samples by direct potentiometry and potentiometric titration is presented. For the presented analytical results, there are insignificant systematic errors between the direct potentiometric method with the developed ion-selective electrode and atomic absorption spectrometry. .

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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