In collaboration with Payame Noor University and Iranian Chemical Science and Technologies Association
Development of An Optical Sensor Based on Sol-gel Doped with 2,6-Dichlorophenol Indophenol for Analysis of Ascorbic Acid

Ashraf Salmanipour; Sara Hooshmand

Volume 1, Issue 1 , March 2014, Pages 1-6

Abstract
  In this work, an optical sensor for detection of ascorbic acid is described. The sensor is fabricated by casting and spin-coating silica sol-gel doped with 2,6-dichlorophenol indophenol on the glass plates. The sols are in turn obtained by acidic hydrolysis of various precursors such as tetraethoxysilane, ...  Read More

Solid Phase Extraction–Spectrophotometric Determination of Phosphate Using Modified Magnetite Nanoparticles as Extractor

Mohammad Ali Karimi; Abdolhamid Hatefi-Mehrjardi; Alireza Mohadesi; Sayed Zia Mohammadi; Mehdi Taghdiri; Javad Yarahmadi; Havva Mahmoodian; Shahla Nezhad Khorasani

Volume 1, Issue 1 , March 2014, Pages 7-11

Abstract
  In this work, a new, simple and fast method for the solid phase extraction-spectrophotometric determination of phosphate using cetyltrimethyl ammonium bromide immobilized on alumina-coated magnetite nanoparticles (CTAB@ACMNPs) has been developed. The determination of phosphate is based on the molybdenum ...  Read More

Simultaneous Determination of Glutathione and Tryptophan at the Surface of Carbon Nanotube Paste Electrode in the Presence of Catechol

Jahanbakhsh Raoof; Mohammad Ali Karimi; Leila Asadian-Zarrinabadi; Mohaddeseh Amiri-Aref

Volume 1, Issue 1 , March 2014, Pages 12-19

Abstract
  The electrochemical oxidation and determination of tryptophan (Trp) and glutathione (GSH) in the presence of catechol as a homogeneous redox in the aqueous medium were investigated at the surface of a carbon paste electrode modified with multi-walled carbon nanotube (MWCNT-CPE) using cyclic voltammetry ...  Read More

Development of Homogeneous Liquid-Liquid Microextraction via Flotation Assistance Method for Determination of Benzene, Toluene, Xylene and Styrene in Water Samples

Majid Haji Hosseini; Mohammad Reza Rezaei; Mohammad Rezaee; Peyman Asaadi; Khatereh Ashtari

Volume 1, Issue 1 , March 2014, Pages 20-28

Abstract
  This study propose a new analytical protocol for the determination of benzene, xylene, toluene and styrene in water samples using homogeneous liquid-liquid microextraction via flotation assistance (HLLME-FA) technique followed by gas chromatography-mass spectrometry (GC-MS). In this research, a special ...  Read More

Novel Reagents for the Spectrophotometric Determination of Isoniazid in Pure and Pharmaceutical Formulations

Kumble Divya; Badiadka Narayana

Volume 1, Issue 1 , March 2014, Pages 29-35

Abstract
  New, simple and cost effective spectrophotometric methods have been developed for the quality assessment of isoniazid (INH), in bulk and in pharmaceutical formulations by using novel reagents. The proposed methods involve the utility of ethyl 2-[(E)-(4-hydroxyphenyl) diazenyl]-3-oxobutanoate and benzil ...  Read More

Application of Modified Nano Alumina as a Solid Phase Extraction Sorbent for the Separation and Preconcentration of Manganese (II) in Milk and Water Samples and Its Determination by Flame Atomic Absorption Spectrometry

Mohammad Reza Jamali; Aysanam Kazemi

Volume 1, Issue 1 , March 2014, Pages 36-43

Abstract
  A simple, selective and efficient solid phase extraction method based on the use of  γ-alumina nanoparticles coated with sodium dodecyl sulfate (SDS) and modified with 2-​(5-​Bromo-​2-​pyridylazo)​-​5-​(diethylamino) ​phenol (5-Br-PADAP) as a new adsorbent was developed for ...  Read More

Cloud Point Extraction and Spectrophotometric Determination of Cadmium in Some Vegetables

Foroozan Hasanpour; Zahra Alimirzaei; Masoumeh Taei; Hamed Karimi; R. Samimi

Volume 1, Issue 1 , March 2014, Pages 44-49

Abstract
  Cloud point extraction and spectrophotometric determination of trace quantities of cadmium in some vegetables have been developed. The research area for vegetables analysis was near to the Zarin Shahr where the soil received heavy metals from the Esfahan Steel Company. Cloud point extraction used dithizone ...  Read More

Selective Complexmetric Determination of Titanum (IV) by Using 5-Sulphosalicylic Acid as Releasing Agent

Nagaraj P Shetty; Gopalakrishna Bhatn; Chandrashekara Kg

Volume 1, Issue 1 , March 2014, Pages 50-52

Abstract
  A complexometric method for the determination of titanium in the presence of other metal ions based on the selective masking ability of 5-sulphosalicylic acid towards titanium is described. Titanium (IV) present in a given sample solution is complexed with a known excess of EDTA and surplus EDTA is titrated ...  Read More

Separation and Preconcentration Trace Amounts of Nickel Ion Us-ing Modified Multiwalled Carbon Nanotubes Sorbent Prior to Flame Atomic Absorption Spectrometry Determination

Maryam Ghanbarian; Farzad Etemadi; Ali Mostafavi; Moslem Afzali

Volume 1, Issue 1 , March 2014, Pages 53-57

Abstract
  In this work, a selective method for separation and preconcentration of nickel ions at trace level on modified multiwalled carbon nanotubes columns and determination by flame atomic absorption spectrometry (FAAS) has been developed. Multiwalled carbon nanotubes were oxidized with concentrated HNO3 and ...  Read More