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Issue 06: Recent submissions

Now showing items 1-20 of 21

IONIC LIQUID CATALYZED SYNTHESIS OF 3,4-DIHYDROPYRIMIDIN-2(1H)-ONES UNDER MICROWAVE IRRADIATION

QIN WANG; AND WEN PEI (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-12-20)

An effective synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives using ionic liquid 1-n-butyl-3-methylimmidazolium hexafluorophosphate ([bmim]PF₆) as the catalyst from aldehydes, 1,3-dicarbonyl compounds and urea ...
Catalytic Conversion of Waste Inner Tube Rubber (Isobutylene Isoprene) into Valuable Products

FAZAL MABOOD; MOHAMMAD RASUL JAN; JASMIN SHAH; FARAH JABEEN; SULTAN ALAM; MOHAMMAD SADIQ; JAVID HUSSAIN; ZAHID HUSSAIN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-12-11)

Waste inner tube rubber (isobutylene isoprene) represents a source of energy and valuable chemical products. Waste inner tube rubbers were pyrolysed catalytically in a batch reactor under atmospheric pressure. Calcium ...
On-Line Inhibition Study of Immobilised Acetylcholinesterase by Aqueous Extracts of Momordica charantia (Bitter Melon)

TAHSEEN GHOUS; NOSHEEN AZIZ; ALMAS ABID; AAMIR RASHEED; MAZHAR IQBAL (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-12-20)

Momordica charantia (MC) also known as bitter melon is commonly used as a folk medicine in most parts of South Asia. The role of MC in diabetes is of great importance because it lowers blood sugar and delays diabetic ...
Comparison of Human Serum Neopterine and CRP Levels

MUSTAFA YONTEM; GORKEM UMUT (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-12-20)

Neopterine (NP), low weight molecule of 2-amino-4-hydroxy, is pterin. NP is a catabolic product of guanosine triphosphate (GTP) that is apurine nucleotide. It also is synthesized by macrophages. These cells are the most ...
Preparation of a Novel Rechargeable Storage Battery Using Proteins for the Storage of Electricity

ZAHID HUSSAIN; KHAN, KHALID MOHAMMED; KHADIM HUSSAIN; SHAHNAZ PERVEEN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-12-20)

The first rechargeable battery which is using the oxidation and reduction reactions of the protein has been prepared. The source of oxidizeable protein is the boiled kidney bean and that of the reducible protein is chickpea. ...
Antileishmanial Steroidal Alkaloids from Roots of Sarcococca coriacea

MUHAMMAD IQBAL, CHOUDHARY; ACHYUT ADHIKARI; SAMREEN; ATTA-UR-RAHMAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-12-20)

Bio-assay guided isolation of secondary metabolites from the plant Sarcococca coriacea (Hook. f.) yielded two steroidal alkaloids, alkaloid C (1) and iso-N-formylchonemorphine (2). The structures of compounds were identified ...
Physicochemical Analysis and Biomarker Distributions in Waxy Crude Oils from the Lower Indus Basin, Pakistan

ABDUS SALEEM; TAHIRA FAZEELAT; MUHAMMAD ASIF (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)

Lower Indus Basin, Sindh Province Pakistan, produces many small to medium petroleum reservoirs. The petroleum hydrocarbons mainly contain two types of oils, condensates (light crude oils) and waxy crude oils (higher wax ...
Conversion of Low Density Polyethylene into Fuel Products Using Indian Fuller’s Earth as Catalyst

ZAHID HUSSAIN; KHALID MOHAMMED, KHAN; FAZAL MABOOD; MOHAMMED RASUL JAN; JASMIN SHAH (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-12-20)

The catalytic activity of Indian Fuller,s earth was explored for the cracking of polyethylene. The catalyst was used both in the crude and activated form. The catalytic activity of these was discussed in terms of the ...
Gas chromatographic-Mass Spectrometric Analysis of the Products Obtained by Microwave-Metal Interaction Pyrolysis of Coal

NADIA BASHEER; KHADIM HUSSAIN; KHALID MOHAMMED KHAN; ZAHID HUSSAIN (Karachi: The Chemical Society of Pakistan, 2010-12-14)

A novel method for the liquefaction of coal has been investigated. It is a microwave assessed thermal cracking of coal in the presence of iron mesh. The iron mesh acts as antenna for the microwaves. This microwave metal ...
Capillary Gas Chromatographic Determination of Dopamine by Pre-column Derivatization Method using Trifluoroacetylacetone as Derivatizing Reagent

MUHAMMAD YAR KHUHAWAR; LIAQUAT ALI ZARDARI; SUBHAN ALI MAJIDANO; ASGHAR ALI MAJIDANO (Karachi: The Chemical Society of Pakistan, 2010-12-13)

Capillary gas chromatographic separation of putrescine (Pu), cadaverine (Cd), dopamine (DA) and octopamine (OA) as derivatives of trifluoroacetylacetone (FAA) has been carried out using a column HP-5 (30 m × 0.32 mm id), ...
Physicochemical Analysis of Citrus sinensis, Citrus reticulata and Citrus paradisi

IKHTIAR KHAN; ZAFAR ALI SHAH; MUHAMMAD SAEED; HAMID ULLAH SHAH (Karachi: The Chemical Society of Pakistan, 2010-12-12)

Three species (35 varieties) of commonly utilized citrus fruits (Citrus sinensis, Citrus reticulata and Citrus paradisi) were collected from Agricultural Research Institute Tarnab, Peshawar in December 2007. They were ...
Microstructural Development of Superconducting Phases in Pb-BSCCO System Derived from Sol-Gel Technique

AMMAD HUSSAIN QURESHI; NAZAR HUSSAIN; SHAHID KHAN DURRANI; HASSAN WAQAS; MUHAMMAD ARSHAD (Karachi: The Chemical Society of Pakistan, 2010-12-10)

Sol-gel processing technique has been utilized to produce the gel of Pb-BSCCO system (Bi₂-xPbx Sr₂ Ca₂ Cu₃ O₁₀ ±y, where x = 0.2, 0.4, and 0.8, are the mole fraction of Pb substituted against Bi). The gel samples were ...
Recovery of Gold from Electroplating Waste Water Effluents by using Orange Peel

ASIM HAFEEZ; USMAN ALI; MUHAMMAD ALI KHAN (Karachi: The Chemical Society of Pakistan, 2010-12-09)

A method for the recovery of gold from the electroplating waste water effluents has been developed based on its adsorption on orange peel. Adsorption of gold(III) from dilute solutions of hydrochloric acid on orange peel ...
Quality Assessment of Surface and Groundwater of Taluka Daur, District Nawabshah, Sindh, Pakistan.

SUBHAN ALI MAJIDANO; MUHAMMAD YAR KHUHAWAR; ABDUL HAMID CHANNAR (Karachi: The Chemical Society of Pakistan, 2010-12-08)

In present work groundwater and surface water samples are analyzed from taluka Daur, district Nawabshah, Sindh. 38 water samples of the study area were examined. The physico-chemical parameters of the water samples were ...
Heavy Metal Levels in Commonly used Traditional Medicinal Plants

SUMAYYA SAIED; ERUM ZAHIR; AZHAR SIDDIQUE (Karachi: The Chemical Society of Pakistan, 2010-12-07)

In the present study a survey of 24 commonly used medicinal plants of Indian subcontinent origin was carried out to evaluate their levels of heavy metals by electrothermal atomic absorption spectroscopy. The results showed ...
Coatings of Poly-p-Aminophenol at Carbon Electrodes: Electrochemical Behavior

INAM-UL-HAQUE; KIRAN BANO; SHAHID IQBAL (Karachi: The Chemical Society of Pakistan, 2010-12-04)

Polymer coated carbon electrodes were prepared by reductive electro-polymerization of p-aminophenol in 1.0 M nitric acid. Polymer films thus formed were then investigated by voltammetric and electrochemical impedance ...
Chemical Oxygen Demand (COD) Fractions Characterization of Karachi Metropolitan Wastewater

YASMIN NERGIS; MUGHAL SHARIF; M. AFZAL FAROOQ (Karachi: The Chemical Society of Pakistan, 2010-12-03)

To prove the hypothesis that the inert products are given to environment due to biological degradation of substrate in activated sludge operations. This study was design to investigate the inert fractions of chemical oxygen ...
Synthesis and Spectral Characterization of Mono- and Homodinuclear Complexes of Co(II), Ni(II), and Cu(II) with a Compartmental Hexadentate Schiff Base Ligand Derived from 3-Formylsalicylic Acid

ESAM ABD El-MALEK; ABD-ALLAH ORABI (Karachi: The Chemical Society of Pakistan, 2010-12-02)

Reaction between 3-formylsalicylic acid and 4,5-dichloro-1,2-phenylenediamine gave a compartmental hexadentate Schiff base (H4fsacph) with an N₂O₄ donor frame involving an inner N₂O₂ set of donors and an outer set of O₂O₂ ...
Adsorption of Azo Dye on Activated Carbon Prepared from Waste Wood: 2. Equilibrium

SULTAN ALAM; FAZAL MABOOD; MOHAMMAD SADIQ; NOOR-UL-AMIN; FAZLULLAH KHAN BANGASH (Karachi: The Chemical Society of Pakistan, 2010-12-01)

The present study was designed to investigate the effect of activation temperature on carbon prepared from the wood of Salvadora oleoides. The samples were characterized. Activation at 800 ºC is higher due to the decrease ...
Mass Spectral Studies of Tetraorganotin (IV) Compounds Containing Long Chain Alkyl and Aryl Groups

SADIQ-UR-REHMAN; MUHAMMAD AZIZ CHOUDHARY; SAQIB ALI; MOAZZAM HUSSAIN BHATTI (Karachi: The Chemical Society of Pakistan, 2010-12-06)

Tetraorganotin (IV) compounds having general formula R₄₋xSnR'x where R = CH₃, n-C₄H₉, C₆H₅, C₆H₅CH₅, R' = n-C₆H₁₃and x = 1 or 2, have been synthesized by the reaction of R₂SnCl₂ and R₃SnCl with appropriate amount of ...

Now showing items 1-20 of 21

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