In collaboration with Payame Noor University and Iranian Chemical Science and Technologies Association
Design and Developed Novel and Ultrasensitive Chemosensor for Sequential Determination of Arginine and Glutathione Amino Acids

Hossein Tavalali; Abolfath Parhami; Mohammad Ali Karimi; Jamshid Askari

Volume 10, Issue 2 , September 2023, , Pages 79-96

https://doi.org/10.30473/ijac.2023.69912.1281

Abstract
  In this study, a novel mixed ligand (Dithizone-Co(II)-Alizarin red S: DTZ-Co-ALR-) ensemble is designed and developed ultra-sensitive, and highly selective to UV-Vis absorption and for naked-eye detection of Arginine (Arg), and Glutathione (GSH). The out coming high sensitivity and selectivity for new ...  Read More

Novel Use of Congo Red and Alizarin Red S Dye Couple as Rapid and Selective Colorimetric Chemosensor for Naked Eye Detection and Determination of Carbonate in Aqueous Samples

Hossein Tavallali; Abolfath Parhami; Abbas Karimpour; Mohammad Ali Karimi

Volume 9, Issue 2 , September 2022, , Pages 92-103

https://doi.org/10.30473/ijac.2023.66378.1253

Abstract
  In this study, a new colorimetric sensor based on a couple of Congo Red (CR) and Alizarin Red S (ALRs) was ready for the detection of the carbonate in tracing levels in aqueous media. The linear range of carbonate derived from the results of this simple, selective, and rapid determination, was 1.21 × ...  Read More

Dye-Based Acceptor as a Colorimetric Chemosensor for Determination of Dual Ions, Tin (II) and Citrate Ion in Aqueous/ Dimethyl Sulfoxide Media with Analytical Applications

Hossein Tavallali; Gohar Deilamy-Rad; Mohammad Ali Karimi; Elaheh Sharifi; Zahra Tavallali; Arshida Najafi-Nejad

Volume 7, Issue 2 , September 2020, , Pages 75-84

https://doi.org/10.30473/ijac.2021.59511.1199

Abstract
  Bromopyrogallol Red (BPR) dye (Dibromopyrogallolsulfonphthalein), was evaluated as a highly selective colorimetric chemosensor for tin and citrate ion. BPR displayed rapid response, high specificity, visual determination and good selectivity toward tin and citrate ion over other competing cations and ...  Read More

Fast Removal of Reactive Red 141 and Reactive Yellow 81 From Aqueous Solution by Fe3O4 Magnetic Nanoparticles Modified With Ionic Liquid 1-Octyl-3-methylimidazolium Bromide

Sedigheh Kamran; Hossein Tavallali; Ali Azad

Volume 1, Issue 2 , September 2014, , Pages 78-86

Abstract
  Fe3O4 magnetic nanoparticles modified with 1-Octyl-3-methylimidazolium bromide([C8MIM]-Fe3O4) were used for the removal of reactive red 141 (RR141) and reactive yellow 81 (RY81) as model azo dyes from aqueous solution. The mean size and the surface morphology of the nanoparticles were characterized by ...  Read More

Speciation, Preconcentration and Determination of Iron in Legumes Sample Based on a Novel Magnetic Mixed Hemimicell Solid Phase Extraction Technique

Hossein Tavallali; Gohar Deilamy-Rad; Hoda Ansari

Volume 1, Issue 2 , September 2014, , Pages 87-96

Abstract
  A novel magnetic mixed hemimicell solid phase extraction (MMHSPE) technique for speciation analysis of soluble, ferrous and ferric iron in legumes sample by flame atomic absorption spectrometry analysis (FAAS) was developed. MMHSPE system consisting of alumina-coated magnetite nanoparticles (Fe3O4/Al2O3NPs) ...  Read More