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Browsing Volume 33 by Title

Browsing Volume 33 by Title

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  • Adsorption of Gold (III) from Aqueous Solutions on Bagasse Ash 
    GHULAM HUSSAIN; M. ALI KHAN (Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, 2011-06-04)
    To assess the potential of cheap biomass materials for the recovery of gold from industrial, and electroplating waste water effluents, adsorption of gold (III) from dilute solutions of hydrochloric acid on bagasse ash has ...
  • Advances in the Development of Methane Bromination 
    HAROON UR RASHID; KAICHAO YU; JINLAN ZHOU (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    The bromination reactions of Methane were studied and majority of the work done so far was outlined, as these reactions have gained immense importance for years in the industrial sector. Thermodynamically, Bromine (Br) is ...
  • allo-Imperatorin: A Potent Urease Inhibitor from Fresh Unripe Fruits of Aegle marmelos (Rutaceae) 
    ALI, MUHAMMAD SHAIQ; GHAFOOR AHMED; PERVEZ, MUHAMMAD KASHIF; MEHREEN LATEEF; NIGHAT AFZA; LUBNA IQBAL (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    During the search for bioactive constituents from different parts of Aegle marmelos (Rutaceae), the ethanol soluble portion of fresh unripe fruits yielded two known amides named aegeline (1) and 2-O-methyl aegeline (2), ...
  • Analysis of Heavy Metals in Selected Medicinal Plants from Dir, Swat and Peshawar Districts of Khyber Pakhtunkhwa 
    IQBALHUSSAIN; MUNEEB UR REHMAN, KHATTAK; FARHAT ALI, KHAN; INAYAT UR REHMAN; FARMAN ULLAH, KHAN; FARID ULLAH, KHAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-08-20)
    Essential and non-essential heavy metals like Manganese, Zinc, Iron, Nickel, Copper, Chromium, Lead and Cadmium were analyzed quantitatively in selected medicinal plants including, Acorus calamus, Artemisia annua, Chenopodium ...
  • Analysis of Vitamin C in Selected Medicinal Plants 
    IQBAL HUSSAIN; LAJBER KHAN; GUL AKHTER MARWAT (Karachi: The Chemical Society Of Pakistan, 2011-04-22)
    Vitamin C or ascorbic acid, a very useful constituent of redox mechanism is used in medicine and also added in manufactured food for anti-oxidation. A UV-spectrophotometric method was used for the determination of Vitamin ...
  • Anti-bacterial and Anti-leishmanial Studies of 4, 6-diarylpyrimidin-2-amines 
    MUJAHID HUSSAIN BUKHARI; HAMID LATIF SIDDIQUI; CHAUDHARY MUHAMMAD ASHRAF; TANVIR HUSSAIN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-10-21)
    Seven new chalcones along with nine already reported ones were synthesized from aryl aldehydes and substituted acetophenones by Claisen-Schmidt condensation. Each chalcone was treated with guanidine hydrochloride followed ...
  • Antibactericidal Effect of Some Substituted-1, 2, 4-Triazole Derivatives 
    SINGH, RAM JANAM (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-08-20)
    The syntheses of a series of some substituted-1, 2, 4-triazole derivatives are described. The reaction of sodium salt of α-sulphonated of stearic acid hydrazide (1) with carbon disulphide in alcoholic KOH yielded the ...
  • Antifungal Activity of the Pyrolyzate of Glucose, Sucrose and Starch in Comparison to Paper Pyrolyzate 
    ZAHID HUSSAIN; KHALID MOHAMMED KHAN; SHAHNAZ PERVEEN; IFTIKHAR HUSSAIN BUKHARI (Karachi: The Chemical Society Of Pakistan, 2011-10-16)
    Glucose, sucrose, starch and cellulose were pyrolyzed at 300 º C. The antifungal activities of these pyrolyzates were investigated. All of these pyrolyzates were found to be remarkably active against Trychophyton longifusus. ...
  • Antimicrobial and Antioxidant Activities of Phenolic Compound Extracted from New Verbascum Species Growing in Turkey 
    FATMA ZERRIN SALTAN; MUNEVVER SÖKMEN; MEHTAP AKIN; HATICE TANER SARAÇOĞLU; RAMZAN SÜLEYMAN GÖKTÜRK; MANZOOR AHMAD; MUMTAZ ALİ; MUHAMMAD RAZA SHAH (HEJ Research Institute of Chemistry, University of Karachi, Karachi, 2011-10-28)
    The aim of this study was to evaluate the antimicrobial and antioxidant potential of the aerial parts of four new Verbascum L. (Scrophulariaceae) species namely, Verbascum bellum Hub.-Mor., Verbascum detersile Boiss. & ...
  • ANTIMICROBIAL CONSTITUENTS FROM AERVA JAVANICA 
    AHSAN SHARIF; EJAZ AHMED; ABDUL MALIK; MUKHTAR -UL- HASSAN; MUNAWAR ALI MUNAWAR; ALEEZA FARRUKH; SAEED AHMAD NAGRA; JAMIL ANWAR; MUHAMMAD ASHRAF; ZAID MAHMOOD (Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, 2011-06-24)
    In the course of screening program we have isolated six natural products from the whole plant of Aerva javanica. Isoquercetrin (1), 5-methylmellein (2), 2-hydroxy-3-O-β -primeveroside naphthalene-1,4-dione (3), Apigenin ...
  • Antimicrobial Constituents from Buddleja asiatica 
    FARMAN ALI; MUHAMMAD IQBAL; RUBINA NAZ; ABDUL MALIK; IRSHAD ALI (Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, 2011-02-11)
    Seven compounds have been isolated for the first time from the chloroform soluble fraction of Buddleja asiatica namely, buddlejone (1), dihydrobuddledin-A (2), buddledone-B (3), ursolic acid (4), 2-phenylethyl-β-D-glucoside ...
  • Antiproliferative Activity and Chemical Constituents of Hypericum oblongifolium 
    MUMTAZ ALI; MOHAMMAD ARFAN; KHAIR ZAMAN; HABIB AHMAD; NAZIA AKBAR; ITRAT ANIS; MUHAMMAD RAZA SHAH (HEJ Research Institute of Chemistry, University of Karachi, Karachi, 2011-10-29)
    The antiproliferative activity of hexane (F1), ethyl acetate (F2), butanol (F3) and water (F4) extracts of H. oblongifolium were tested in vitro for their anti- proliferative (anticancer) activity on the cell lines: HT-29 ...
  • Antiviral Activity Evaluation of Pyrazolo[4,3-e][1,2,4]triazines 
    MARIUSZ MOJZYCH (Karachi: The Chemical Society Of Pakistan, 2011-10-17)
    The main purpose of this study is to screen synthesized pyrazolo[4,3- e][1,2,4]triazine derivatives for their antiviral activity against a panel of DNA and RNA viruses. Minimum cytotoxic and minimum virus-inhibitory ...
  • Assessment of Concentration of Lead, Cadmium, Chromium and Selenium in Blood Serum of Cancer and Diabetic Patients of Pakistan 
    MUHAMMAD SALMAN; RABIA REHMAN; TARIQ MAHMUD; WAHEED-UZ-ZAMAN; UMER SHAFIQUE; JAMIL ANWAR; ALI, SANA ZULFIQAR (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    Heavy metals have specific role in the progression of diseases. The aim of this study was to investigate the level of toxic elements, i.e. lead, cadmium, chromium and selenium in blood serum of type 1 diabetes mellitus and ...
  • Assessment of Dissolved/ Dispersed Aliphatic and Aromatic Hydrocarbon Pollution in Seawater at the Clifton Beach on the Karachi Coast 
    HINA AHSAN; ALIA BANO MUNSHI; SOHAIL SHAUKAT; FAYYAZ AHMED ANSARI; MOHAMMAD FAISAL KHAN (Karachi: The Chemical Society Of Pakistan, 2011-04-07)
    Sea water samples collected at different depths from 10 stations along the Clifton beach of Karachi Coast were analyzed for dissolved/dispersed polyaromatic and aliphatic hydrocarbons (PAHs and AHs) by GC and GC-MS. Sampling ...
  • Assessment of Pesticide Residues on Selected Vegetables of Pakistan 
    KHAN, MUHAMMAD SAQIB; SHAH, MOHAMMAD MAROOF; QAISAR MAHMOOD; AMJAD HASSAN; KEHKASHAN AKBAR (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    The present study was conducted to determine the pesticide residues on selected summer vegetables. Five vegetables were grown with three replicates in a split plot randomized complete block design. Pesticides were sprayed ...
  • Atom Transfer Radical Copolymerization of Phenoxycarbonylmethyl Methacrylate with Methylmethacrylate: Their Monomer Reactivity Ratios and Thermal Stabilities 
    NEVİN ÇANKAYA; KADİR DEMİRELLİ (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    The atom transfer radical polymerization of phenoxycarbonylmethyl methacrylate (PCMMA) and its atom transfer radical copolymerization (ATRP) with methyl methacrylate (MMA) were performed in bulk at 110 °C in the presence ...
  • Bioassay Directed Isolation Studies on Solanum surrattense 
    EJAZ AHMED; AHSAN SHARIF; HAQ NAWAZ; MUKHTAR-UL-HASSAN; MUHAMMAD AZAM RASOOL; KHADIJA NAFEESA; ROBINA BEGUM; MUHAMMAD ASHRAF; TARIQ MAHMUD (Karachi: The Chemical Society Of Pakistan, 2011-10-13)
    Bioassay directed isolation studies on solanum surrattense have resulted in the isolation of three steroidal alkaloids namely, acetyl-solasodine (1), khasianine (2) and solamargine (3) from the ethyl acetate soluble fraction. ...
  • Biofouling Management in the Cooling Circuit of a Power Industry Using Electrochemical Process 
    MUHAMMAD SALEEM (Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, 2011-06-01)
    Biofouling is one of the major issues in the power industry using seawater for cooling and other purposes. presence of biological organisms such as bacteria and algae that could foul pipes and expensive equipments need to ...
  • Calcium Channel Blocking Activity of Fruits of Callistemon citrinus 
    NIAZ ALI; SYED WADOOD ALI SHAH; BASHIR AHMAD (Karachi: The Chemical Society Of Pakistan, 2011-04-19)
    Callistemon citrinus is a plant of family myrtaceae that has a great medicinal importance. Traditional uses of the aerial parts of Callistemon citrinus in ethnic tribal communities are in practice, and very little are known ...

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