Silver(I)-selective electrode based on [Bz2Oxo4(18)dieneS4] tetrathia macrocyclic carrier

Singh, Ashok Kumar; Saxena, Puja
May 2006
Analytical & Bioanalytical Chemistry;May2006, Vol. 385 Issue 1, p90
Academic Journal
A polystyrene-based membrane of 7,8:16,17-dibenzo-6,9,15,18-tetraoxo-1,5,10,14-tetrathiacyclooctadeca-7,16-diene [Bz2Oxo4(18)dieneS4] was fabricated using sodium tetraphenylborate (NaTPB) and dioctyl phthalate (DOP) as anion excluder and plasticizing agent. The best performance was obtained from the membrane with the composition ionophore [Bz2Oxo4(18)dieneS4]:polystyrene:DOP:NaTPB, 5:100:150:10 ( w/ w). The response of the electrode was linear over a wide range of concentration, 1.26�10�6�1.00�10�1 mol L-1 for silver ion with a Nernstian slope of 58.4�0.1 mV per decade and a detection limit of 1.0�10-6 mol L-1. The electrode was found to be chemically inert and of adequate stability with a response time of 10 s and could be used for a period of 3 months without change of potential. It worked satisfactorily in mixtures containing up to 35% ( v/ v) non-aqueous content. The proposed membrane sensor had good selectivity for Ag+ over a wide variety of metal ions in the pH range 2.2�8.5. It was successfully used as an indicator electrode in potentiometric titration of silver ion. The electrode was also useful for determination of Ag+ in waste from photographic films.


Related Articles

  • Crystallization processes in silver-ion conducting borate and phosphate glasses. Nowiński, J. L. // Materials Science (0137-1339);2006, Vol. 24 Issue 1, p169 

    Crystallization processes in silver-ion conducting superionic borate and phosphate glasses_are presented. Experimental evidence indicates that these processes are determined by the dopant concentration x, glass former, molar ratio of modifier to former η = [Ag2O]/[P2O5], cooling rate of the...

  • Spectral Studies of Silver Ions in Barium Borate Glass and Effects of Gamma Irradiation. Abdelghany, A. M.; ElBatal, H. A.; ElBatal, F. H. // Middle East Journal of Applied Sciences;Oct-Dec2015 Special Issue, Vol. 5 Issue 5, p7 

    Combined optical and FT infrared absorption spectral measurements were carried out for prepared undoped barium borate glass of the molecular composition (45% BaO. 55%B2O3) and glasses of the same composition containing 0.3, 0.6, 1.0, 1.5% of either AgNO3 or AgBr. The same collective spectral...

  • Characterization of a New Ag+-Selective Electrode with Lower Detection Limit. Shenggang Sang; Chunwei Yu; Na Li; Yuxiang Ji; Jun Zhang // International Journal of Electrochemical Science;2012, Vol. 7 Issue 4, p3306 

    An Ag+-selective electrode based on thiaazacrown ether as ionophore with lower detection limit was prepared. The ion flux was decreased by controlling concentration of primary ion in inner solution according to the solubility product constant of AgCl. With the optimal composition of membrane,...

  • Partitioning of silver and chemical speciation of free Ag in soils amended with nanoparticles. Benoit, Rachel; Wilkinson, Kevin J.; Sauvé, Sébastien // Chemistry Central Journal;2013, Vol. 7 Issue 1, p1 

    Background: Knowledge about silver nanoparticles in soils is limited even if soils are a critical pathway for their environmental fate. In this paper, speciation results have been acquired using a silver ion selective electrode in three different soils. Results: Soil organic matter and pH were...

  • Mechanochemical synthesis of silver ion conducting glasses in the system AgI-Ag2O-B2O3. Hayashi, Akitoshi; Ishida, Tomohiko; Minami, Tsutomu; Tatsumisago, Masahiro // Glass Technology: European Journal of Glass Science & Technology;Feb2007, Vol. 48 Issue 1, p1 

    Highly Ag+ conductive glasses in the system AgI-Ag2O-B2O3 were prepared by mechanochemical synthesis using a high energy planetary ball mill apparatus. The glass forming region for the composition series of xAgI.(100-x)(0.5Ag2O. 0.5B2O3) (mol%) was determined. The mechanically milled sample with...

  • Electrical conductivity studies of AgI—Ag2O—B2O3—TeO2 glasses. Veeranna Gowda, V. C.; Anavekar, R. V. // Journal of Materials Science;Jun2007, Vol. 42 Issue 11, p3816 

    The silver ion conducting boro tellurite glasses have been prepared by melt quenching technique. The conductivity and dielectric measurements were carried out on these glasses as a function of frequency from 10 Hz to 10 MHz over a temperature range of 298–328 K. The analysis of...

  • Computer simulation of precipitation titration for some cations using pH glass electrode. Nezhadali, Azizollah; Ahmadi, Bi Bi Soghra // Der Pharma Chemica;2010, Vol. 2 Issue 3, p242 

    Abstract The analytical methods of qualitative and quantitative determination of ions in solutions are very flexible to automation. In this research by using a computer simulation a potentiometric titration of bromide and chloride ions by nitrate solution of some monovalent cations with pH glass...

  • A Comparative Study of Ag+-Selective Electrodes Based on Two 21-Membered N3S4-Macrocycles as Neutral Ionophores. Shijie Wu; Jun Zhang; Wenjing Lu; Haiyun Zhang; Dazhong Shen; Kang Qi; Dawei Pan // International Journal of Electrochemical Science;2012, Vol. 7 Issue 4, p3567 

    The performances of two 21-membered N3S4-azathiacrown ethers as neutral carriers for Ag+-selective electrodes (Ag+-ISEs) were investigated. Potentiometric responses revealed that the flexibility of the crown ether has great effect on the selectivity and sensitivity of sensors to Ag+. The...

  • A New Neutral Carrier for Silver Ions Based on a Bis(Thiothiazole) Derivative and its Evaluation in Membrane Electrodes. Badr, Ibrahim H. A. // Microchimica Acta;Feb2005, Vol. 149 Issue 1/2, p87 

    Membrane electrodes based on 2,2'-dithiobis(benzothiazole), DTBBT, as a neutral carrier for silver ions are described. Silver-selective membrane electrodes formulated with 2?wt% DTBBT ionophore and 50?mol% TFPB in an FPNPE plasticized poly (vinyl chloride) exhibited near-Nernstian responses...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics