1,4,7,10-Tetraoxacyclododecane(12-Crown-4) as Neutral Carrier for Lithium Ion in Lithium Ion Selective Electrode
| Autor: | Victor P. Y. Gadzekpo, Gary D. Christian |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Metal ions in aqueous solution
Biochemistry (medical) Clinical Biochemistry Inorganic chemistry Analytical chemistry chemistry.chemical_element Biochemistry Analytical Chemistry Ion Ion selective electrode Metal Membrane chemistry visual_art Electrode Electrochemistry visual_art.visual_art_medium Lithium Selectivity Spectroscopy |
| Zdroj: | Analytical Letters. 16:1371-1380 |
| ISSN: | 1532-236X 0003-2719 |
| DOI: | 10.1080/00032718308065251 |
| Popis: | 1,4,7,10-Tetraoxacyclododecane (12-crown-4) (I) and its lithium complex (II) are used as neutral carriers for lithium ion in polyvinylchloride membrane ion selective electrodes. The lithium response varies with concentration, being near Mernstian at low (10−5-10−4 M) concentrations and sub-Nernstian (24-28 aV) at higher concentrations (10−3 M). The selectivity coefficients KLi Pot M for II are: Na+ (0.12), K+ (0.66), Cs+ (0.15), Mg2+ (1.6 × 10−4), Ca2+ (3.1 × 10−4), Ba2+ (9.5 × 10−7), NH+ 4 (9.0 × 10−2), H+ (2.2). |
| Databáze: | OpenAIRE |
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