Volume 11, Issue 1

 

ارسال های اخیر

  • Effective Solvent Systems for Separation of PTH-Amino Acids on Polyamide Sheet 

    Mustafa, Gh.؛ Abbasi, A.؛ Zaidi, Z.H. (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 1992-06-01)
    Two dimensional thin layer chromatography on polyamide sheets is a useful method for identification of PTH-amino acids which have very close Rf-values. The solvent systems described here are particularly effective and ...

  • A Physico-Mathematical Model for Bisubstrate Enzyme Membrane Electrodes 

    Pishvaie, M.R.؛ Mozaffari, Sh.؛ Ghoorchian, H.؛ Sarbolouki, M.N. (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 1992-06-01)
    A physic-mathematical model has been developed that is suitable for biosensors incorporating membranes and bisubstrate enzymes. The set of equations regarding the transport of reactants across the membrane, the bisubstrate ...

  • Extraction - Spectrophotometric Determination of Palladium with Tetrabutyl Ammonium Iodide 

    Dadfarnia, Sh. Shamsipour, M. (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 1992-06-01)
    A sensitive and selective extraction - spectrophotometric method for the determination of trace amounts of palladium is reported. The method is based on quantitative extraction of brownish tetrabutylammoium tetraiodopalladium ...

  • Synthesis and Structural Analysis of -2,4,6,8- Tetrabenzyl -2,4,6,8- Tetraazabicyclo [3.3.0] Octane from Condensation of Glyoxal, Benzylamine and Formaldehyde 

    Farnia, M.؛ Kakanejadifard, A. (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 1992-06-01)
    The condensation of glyoxal with benzylamine in the presence of formaldehyde leads to 2,4,6,8-Tetrabenzyl-2,4,6,8-Tetraazabicyclo [3.3.0] octan (6) in methanol. The scopes and limitations of the reaction have been ...

  • Two New Prenylated Flavonoids From Paracalyx Scariosa 

    Ali Nia Asli Rodsay, M.؛ Gunasekar, D. (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 1992-06-01)
    Two new prenylated flavonoids, named scariosin (1) and isorhynchospermin (2) were isolated from the leaves of paracalyx scariosa together with kaempferol, quercetin, kaempferol 3-O- rutinoside and rutin. The structures ...

  • Calculation of Thermodynamic properties of Fluid Using a New Equation of State 

    Parsafar, Gh.؛ Kermanpour, F. (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 1992-06-01)
    Using the Lennard-Jones (12-6) potential, a new equation of state is obtained that can predict properties of both gases and liquids relatively well. This equation of state is given as (Z-a)V2=(A/V2)-B, ...

  • Development of An Immobilized Enzyme Electrode for the Determination of Sulfite Ion 

    NabiRahni, M.A. (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 1992-06-01)
    An enzyme electrode was developed using the enzyme sulfite oxidase (EC1.8.3.1) immobilized onto pig intestine. Hydrogen peroxide produced was monitored amperometrically. All experimental parameters such as pH, temperature, ...

  • Studies on One Step Removal of H2S: Aims and Design Criteria for a Pilot Plant 

    Abedinzadegan, M.؛ Jafari Nasr, Mohammad Reza (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 1992-06-01)
    In an attempt ot develop a one step process for the removal of H2S from sour gas, the engineering consideration were dealt with in two steps. In the first step it was attempted to derive the data required ...