Determination of zirconyl ions with an ion-exchanger membrane electrode

1983 ◽  
Vol 315 (4) ◽  
pp. 353-353 ◽  
Author(s):  
S. K. Srivasta ◽  
Surendra Kumar ◽  
Naresh Pal ◽  
Rashmi Agrawal
Keyword(s):  
Ion Exchanger ◽  
Membrane Electrode

Determination of Zirconium in Pressence of Uranyl Ions Using an Ion Exchanger Membrane Electrode

1982 ◽  
Vol 15 (12) ◽  
pp. 995-1000 ◽  
Author(s):  
Ajay K. Jain ◽  
Chand Bala ◽  
Sushme Agrawal ◽  
Rai F. Singh
Keyword(s):  
Ion Exchanger ◽  
Membrane Electrode ◽  
Uranyl Ions

Determination of subnanogram amounts of sulfur dioxide and sulfites by pneumatopotentiometry

1986 ◽  
Vol 51 (10) ◽  
pp. 2077-2082 ◽  
Author(s):  
Jan Langmaier ◽  
František Opekar
Keyword(s):  
Sulfur Dioxide ◽  
Redox Potential ◽  
Sodium Hydroxide ◽  
Porous Membrane ◽  
Membrane Electrode ◽  
Iodine Monochloride ◽  
Membrane Pores ◽  
Relative Standard ◽  
Limit Of Quantitation

Gold porous membrane electrode has been used for the potentiometric determination of small amounts of sulfur dioxide absorbed in the solutions of sodium tetrachloromercurate or sodium hydroxide. Sulfur dioxide is released by the reaction with an acid into a stream of nitrogen and led to the electrode immersed into the solution of iodine monochloride. Part of SO2 penetrates through the membrane pores into the solution where it is oxidized. The electrode redox potential change is a measure of the SO2 concentration in the absorption solution. In the solution of 1 . 10-5 M[ICl2]- in 0.02 M-HClO4 the limit of quantitation was found to be 0.07 ng SO2 . ml-1. The relative standard deviations of 1.4% and 2.5% were found for the determinations of 10 ng and 0.5 ng of SO2, respectively. Higher concentrations of H2S interfere only in the hydroxide solution. About 10 samples can be analyzed per one hour.

Sorption of Lead by the Selective Ion Exchanger Ostsorb DETA

1992 ◽  
Vol 57 (7) ◽  
pp. 1393-1404 ◽  
Author(s):  
Ladislav Svoboda ◽  
Jan Uhlíř ◽  
Zdeněk Uhlíř
Keyword(s):  
Phosphoric Acid ◽  
Aqueous Solutions ◽  
Functional Groups ◽  
Ion Exchanger ◽  
Preconcentration Procedure ◽  
Bead Cellulose

The properties of Ostsorb DETA, a selective ion exchanger based on modified bead cellulose with chemically bonded diethylenetriamine functional groups, were studied, and its applicability to the preconcentration of trace amounts of lead from aqueous solutions was verified. The conditions of the preconcentration procedure in the column and batch modes were optimized for this purpose. The results obtained were applied to the determination of lead in phosphoric acid.

Novel palladium(II) selective membrane electrode based on 4-[(5-mercapto-1,3,4-thiadiazol-2-ylimino)methyl]benzene-1,3-diol

2010 ◽  
Vol 75 (5) ◽  
pp. 563-575 ◽  
Author(s):  
Moslem Mohammadi ◽  
Mehdi Khodadadian ◽  
Mohammad K. Rofouei
Keyword(s):  
Limit Of Detection ◽  
Membrane Electrode ◽  
Aqueous Samples ◽  
Selective Determination ◽  
Poly Vinyl Chloride ◽  
Selective Membrane ◽  
Ph Range ◽  
Palladium Content ◽  
Methyl Benzene

A plasticized poly(vinyl chloride) membrane electrode based on 4-[(5-mercapto-1,3,4-thiadiazol-2-ylimino)methyl]benzene-1,3-diol (L) for highly selective determination of palladium(II) (in PdCl42– form) is developed. The electrode showed a good Nernstian response (29.6 ± 0.4 mV per decade) over a wide concentration range (3.1 × 10–7 to 1.0 × 10–2 mol l–1). The limit of detection was 1.5 × 10–7 mol l–1. The electrode has a response time of about 20 s, and it can be used for at least 2 months without observing any considerable deviation from Nernstian response. The proposed electrode could be used in the pH range of 2.5–5.5. The practical utility of the electrode has been demonstrated by its use for the estimation of palladium content in aqueous samples.

scholarly journals Determination of Ultra-trace Mercury(II) by Flow-injection/Anodic Stripping Voltammetry Using a Track-etched Microporous Membrane Electrode

2013 ◽  
Vol 29 (10) ◽  
pp. 949-954 ◽  
Author(s):  
Hitoshi MIZUGUCHI ◽  
Kentaro NUMATA ◽  
Chiaki MONMA ◽  
Masamitsu IIYAMA ◽  
Kazuhiro TACHIBANA ◽  
...  
Keyword(s):  
Flow Injection ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Microporous Membrane ◽  
Membrane Electrode ◽  
Anodic Stripping ◽  
Ultra Trace

Determination of the concentration in the ion-exchanger phase

1985 ◽  
Vol 320 (3) ◽  
pp. 268-270 ◽  
Author(s):  
Hirohiko Waki ◽  
Genichiro Kura
Keyword(s):  
Ion Exchanger

Plastic membrane electrode for selective determination of diclofenac (voltaren) in pharmaceutical preparations

The Analyst ◽  
1994 ◽  
Vol 119 (9) ◽  
pp. 1993 ◽  
Author(s):  
Saad S. M. Hassan ◽  
Ragab M. Abdel-Aziz ◽  
Mohamed S. Abdel-Samad
Keyword(s):  
Pharmaceutical Preparations ◽  
Membrane Electrode ◽  
Selective Determination ◽  
Plastic Membrane
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