Manufacturing of a New Selective Membrane Electrode for Neomycin Sulfate and its Estimation by Potentiometric Method

2021 ◽  
Vol 19 (10) ◽  
pp. 121-126
Author(s):  
Seemma Hamed Ahmed ◽  
Mumin Fareed Hamad Al-Samarrai ◽  
Imad Tarek Hanoon ◽  
Afrah Saad Salih
Keyword(s):  
Selectivity Coefficient ◽  
Effect Of Temperature ◽  
Membrane Electrode ◽  
Factors Affecting ◽  
Selective Membrane ◽  
Neomycin Sulfate ◽  
Butyl Phthalate ◽  
Ph Range ◽  
Interfering Ions ◽  
Positively Charged

The research aims to prepare a new ionic membrane selective electrode for NYM Neomycin based on tungstophosphoric acid (TPA), Poly Vinyl Chloride (PVC) and DPPH (Di-Butyl Phthalate). It was found that the electrode is sensitive to concentrations ranging between (1 x 10-1-1 x 10-5) mol/L, and it gave a Nernstian response of (29.7 mV/decade) and a correlation coefficient (r) of (0.9939). The factors affecting the response of the electrode were studied, as it was found that the best concentration of the internal filling solution was (1 x 10-3) mol/L, and that the best pH range in which the electrode worked was between (3.5-1.5) and the best Nernstian response at pH (pH = 2.5) The effect of temperature was also studied, as it was found that the best temperature was (25°C) and the response time of the electrode was between (20-40) seconds. It was also found that the chronological age of the electrode was (25) days. The selectivity coefficient (Ki,jpot) was calculated in the presence of negative and positively charged interfering ions.

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 Synthesis of a New Calix[4]Arene and Its Application in Construction of a Highly Selective Silver Ion-Selective Membrane Electrode

2009 ◽  
Vol 2009 ◽  
pp. 1-5 ◽  
Author(s):  
Saeed Taghvaei-Ganjali ◽  
Reza Zadmard ◽  
Masoumeh Zeyaei ◽  
Kabeh Rahnama ◽  
Farnoush Faridbod ◽  
...  
Keyword(s):  
Response Time ◽  
Potentiometric Titration ◽  
Fast Response ◽  
Pvc Membrane ◽  
Indicator Electrode ◽  
Membrane Electrode ◽  
Membrane Sensor ◽  
Selective Membrane ◽  
Ph Range ◽  
Pvc Membrane Sensor

A PVC membrane sensor for Ag (I) ions has been prepared. The membrane has 5, 11, 17, 23-tetra-tert-butyl-25-(3-N, N-diethyldithio carbamoylpropoxy)-26,27,28-tris-propoxy calix[4]arene (CAD) as a carrier. It was found that the sensor exhibits a Nernstian response for Ag+ ions over a wide concentration range (10−2–10−6 M). Additionally, it illustrates a fast response time (about 5 seconds), and it can be used for at least 2 months without any considerable divergence in potentials. The nature of the plasticizer, the additive, the concentration of internal solutions in the electrodes, and the composition of the membrane were investigated. Furthermore, the suggested membrane electrode revealed good selectivities for Ag+ over a variety of other metal cations, and it could be used in the pH range of 3.0–7.0. Eventually, it was successfully applied as an indicator electrode for the potentiometric titration of Ag+ ion with NaCl.

scholarly journals Phosphorated Calix[6]arene Derivatives as an Ionophore for Atropine-Selective Membrane Electrodes

2007 ◽  
Vol 90 (1) ◽  
pp. 147-152 ◽  
Author(s):  
Mohsen M Zareh ◽  
Elizabeita Malinowska
Keyword(s):  
Selectivity Coefficient ◽  
Atropine Sulfate ◽  
Eye Drops ◽  
Membrane Electrodes ◽  
Relative Standard ◽  
Optimum Ph ◽  
Selective Membrane ◽  
Ph Range ◽  
Polyvinyl Chloride Membrane ◽  
Optimum Ph Range

Abstract 37,40-bis-(diethoxy-thiophosphoryl)oxy-5,11,17, 23,29,35-hexakis(1,1-dimethyl-ethyl)-calix[6]arene-8,39,41,42-tetrol; 37,38,39,40,41-pentakis-(diethoxythiophosphoryl)-oxy-5,11,17,23,29,35-hexakis (1,1-dimethylethyl)-calix[6]-arene-42-ol; and 37-(diethoxythiophosphoryl)oxy-5,11,17,23,29,35-hexakis-(1,1dimethylethyl)-calix[6]arene-38,39,40, 41,42-pentol were introduced as neutral ionophores for atropine-selective electrodes. Practical Nernstian responses were found (54.3, 49.1, and 50.8 mV/decade) for polyvinyl chloride membrane electrodes incorporating these compounds. They exhibited practical linear ranges of 1.9 10-6-7.9 10-3,7.9 10-6-7.9 10-3, and 6.3 10-6-7.9 10-3 M, respectively. The optimum pH range was 2.58.5. The selectivity coefficient values were estimated and interpreted. The electrode performance was correlated to the calixarene structure. Then, the electrode was applied to an actual analysis of pharmaceutical atropine preparations. The recovery values of 18.7 g/mL-5.5193 mg/mL atropine sulfate were 97.599.1%. The corresponding relative standard deviation values ranged between 0.39-0.72% for 5 determinations. The first electrode was applied successfully for analyzing atropine sulfate in injection solution and eye drops.

scholarly journals Synthesis and Characterization of Organic-Inorganic Nanocomposite Poly-o-anisidine Sn(IV) Arsenophosphate: Its Analytical Applications as Pb(II) Ion-Selective Membrane Electrode

2009 ◽  
Vol 2009 ◽  
pp. 1-10 ◽  
Author(s):  
Asif Ali Khan ◽  
Umme Habiba ◽  
Anish Khan
Keyword(s):  
Environmental Pollutant ◽  
Exchange Capacity ◽  
Indicator Electrode ◽  
Membrane Electrode ◽  
Mixed Solution ◽  
Electroactive Material ◽  
Wide Ph Range ◽  
Selective Membrane ◽  
Distribution Studies ◽  
Ph Range

Poly-o-anisidine Sn(IV) arsenophosphate is a newly synthesized nanocomposite material and has been characterized on the basis of its chemical composition, ion exchange capacity, TGA-DTA, FTIR, X-RAY, SEM, and TEM studies. On the basis of distribution studies, the exchanger was found to be highly selective for lead that is an environmental pollutant. For the detection of lead in water a heterogeneous precipitate based ion-selective membrane electrode was developed by means of this composite cation exchanger as electroactive material. The membrane electrode is mechanically stable, with a quick response time, and can be operated over a wide pH range. The selectivity coefficients were determined by mixed solution method and revealed that the electrode is sensitive for Pb(II) in presence of interfering cations. The practical utility of this membrane electrode has been established by employing it as an indicator electrode in the potentiometric titration of Pb(II).

scholarly journals Construction and Evaluation of Scopolamine Ion- Selective Electrode

2000 ◽  
Vol 68 (3) ◽  
pp. 247-261
Author(s):  
A. Shalaby ◽  
M. El-Maamly ◽  
H. Abdellatef
Keyword(s):  
Pharmaceutical Preparations ◽  
Electrode System ◽  
Potentiometric Determination ◽  
Membrane Electrode ◽  
Selective Membrane ◽  
Nernstian Slope ◽  
Ion Associate ◽  
Ph Range ◽  
Associate Species

The construction of plasticised PVC matrix-type scopolamine ion- selective membrane electrode and its use in the potentiometric determination of scopolamine in pharmaceutical preparations are described. It is based on the use of tlie ion-associate species, fonned by scopolainine cation and 5-nitrobarbitoric counter ion. The basic electrode peifonnance characteristics are evaluated according to IUPAC I-ecoininendatioiis. It exhibited a linear response for 1x10-2–1x10-5 M of scopolamine solutions with a cationic Nernstian slope over the pH range of 4-7. Common organic and inorganic cations showed negligible interference. Direct potentiometric determination of 1x10-2–1x10-5 M aqueous tubocurarine chloride using this membrane electrode system showed an average recovery of 99.05 with a mean standard deviation of 0.12. This electrode system was successfully applied to the potentiometric determination of scopolamine in some pharmaceutical preparations.

Selective Membrane Electrode Potentiometry and Spectrophotometry of a Photochemical Reaction of Thioredazine Hydrochloride

1988 ◽  
Vol 71 (5) ◽  
pp. 1042-1045
Author(s):  
Adel F Shoukry ◽  
Sayed S Badawy
Keyword(s):  
Pvc Membrane ◽  
Membrane Electrode ◽  
Isothermal Temperature ◽  
Electrode Potentials ◽  
Pvc Membrane Electrode ◽  
Coated Wire ◽  
Different Temperatures ◽  
Selective Membrane ◽  
Standard Electrode Potentials ◽  
Ph Range

Abstract A PVC membrane electrode of the coated wire type was prepared which is selective for thioredazine. It showed a Nernstian response over a thioredazine concentration range 6.3 x 10 «to 2.5 x 10_3M, at 25°C, and was selective, precise, and usable within the pH range 2.1-7.0. The standard electrode potentials, E°, were determined at different temperatures and used to calculate the isothermal temperature coefficient of the electrode. The photoreaction occurring in thioredazine solution exposed to daylight did not affect the electrode performance. This reaction was investigated kinetically to determine its rate constant and half-life at different temperatures.

scholarly journals Preparation and Description of Potentiometric Electrode for the Limitation of Sulbutamol Sulphate

2019 ◽  
Author(s):  
Mohauman Majeed ◽  
Zahraa Motaweq
Keyword(s):  
Selectivity Coefficient ◽  
Membrane Electrode ◽  
Relative Standard Error ◽  
Pharmaceutical Drugs ◽  
Counter Anion ◽  
Direct Potentiometry ◽  
Relative Standard ◽  
Electrode Selectivity ◽  
Ph Range ◽  
Complex Ion

A new sulbatamol sulphate SBS membrane electrode was prepared that utilizing for its determination ; depend on the forming of the association complex ion of sulbatamol sulphate by the phosphotungstate counter anion deposed in poly vinyl chloride PVC polymer, by use a (Di-n- Octyl Phenyl Phthalate)(Dopp) as the plastizier substance, in membrane.The features properties as well as the behavior of it .The new electrode have been elaborated. The concentrations of medicine by utillizing This sensor show a fast, stable, near-Nernstian response in the range (1x10-1-1x10-6) mol/ L were determined with correlation coefficient of about (r = 0.9991) and with of a relative standard about 0.416 additionally deviation relative standard error of 1.710  %.pot The nernast linearity slop was founded and it is equal to 28.9 mV/decade and the detection limit was 4.1 x 10-6 mol/ L.The electrode selectivity coefficient Ki,j was calculated, in the existence of several interferences cations with confirmed medicine solutions. It was found the pH range response is in the range of (3 -7), with the response time of (30 – 116) sec. for various  concentrations at room temperture , the lifetime for  electrode was found to be more than 21 days. The electrode was successfully used for potentiometric limitation of sulbatamol sulphate in several pharmaceutical drugs by using direct potentiometry.

Fabrication of Gelatin-Zr (IV) Phosphate and Alginate-Zr (IV) Phosphate Nanocomposite Based Ion Selective Membrane Electrode

2018 ◽  
Vol 20 ◽  
pp. 108-120 ◽  
Author(s):  
Manita Thakur ◽  
Deepak Pathania
Keyword(s):  
Electron Microscopy ◽  
Sol Gel ◽  
Membrane Electrode ◽  
Membrane Electrodes ◽  
Ion Exchangers ◽  
Selective Electrode ◽  
Transmission Electron ◽  
Selective Membrane ◽  
Ph Range ◽  
Scanning Electron

Gelatin- Zr (IV) phosphate nanocomposite (GT@ZPNC) and alginate- Zr (IV) phosphate nanocomposite (AG@ZPNC) ion exchangers has been prepared by sol-gel method. The nanocomposites are characterised by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The SEM results of GT@ZPNC and AG@ZPNC confirmed that after the binding of polymer matrix to inorganic part, morphology was completely reformed. TEM results confirmed the synthesised materials were nanocomposite in nature. The GT@ZPNC and AG@ZPNC ion exchangers have been explored to fabricate ion selective electrode for the detection of Cd (II) and Al (III) metal ions. Both ion selective membrane electrodes show wide working concentration and pH range with good response time.

scholarly journals Selective Membrane Sensor for Aluminum Determination in Food Products, Real Samples and Standard Alloys

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 504
Author(s):  
Sabry Khalil ◽  
Ashraf Y. Elnaggar
Keyword(s):  
Liquid Membrane ◽  
Food Products ◽  
Ion Selective Electrodes ◽  
Real Samples ◽  
Membrane Sensor ◽  
Aluminum Ion ◽  
Electrode Response ◽  
Aluminum Ions ◽  
Selective Membrane ◽  
Ph Range

The study involves the fabrication of an aluminum liquid membrane sensor based on the association of aluminum ions with the cited reagent 2,9-dimethyl-4,11-diphenyl -1,5,8,12-tetraaza cyclote tradeca-1,4,8,11-tetraene [DDTCT]. The characteristics slope (58 mV), rapid and linear response for aluminum ion was displayed by the proposed sensor within the concentration range 2.5 × 10−7–1.5 × 10−1 M, the detection limit (1.6 × 10−7) M, the selectivity behavior toward some metal cations, the response time 10 s), lifetime (150 days), the effect of pH on the suggested electrode potential and the requisite analytical validations were examined. The suitable pH range was (5.0–8.0 ), in this range the proposed electrode response is independent of pH. The suggested electrode was applied to detect the aluminum ions concentration in food products, real samples and standard alloys. The resulting data by the suggested electrode were statistically analyzed, and compared with the previously reported aluminum ion-selective electrodes in the literature.

A Lead-Selective Membrane Electrode Based Upon a Phosphorylated Hexahomotrioxacalix[3]Arene

2007 ◽  
Vol 54 (6) ◽  
pp. 1535-1542 ◽  
Author(s):  
Mohammad Reza Yaftian ◽  
Massoumeh Parinejad ◽  
Dominique Matt
Keyword(s):  
Membrane Electrode ◽  
Selective Membrane
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