Pakistan Science Foundation: Recent submissions

  • Novel Ru-Complex of Methyldiphenylcyclopentadienylide 
    SYEDA ROBINA GILANI; ZAID MAHMOOD (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    Ylide CpPMePh₂ was synthesized by the deprotonation of Ylide salt of iodide by using different deprotonating agent like n butyl Li, NaH, (CH₃)₂N Li, isopropyl Li and ((CH₃)₃Si)₂N.Li. Out of all these deprotonating agents ...
  • MIXED LIGAND COPPER(II) COMPLEXES OF PYRROLIDINEDITHIOCARBAMATE AND DIAMINES 
    SAEED AHMAD; MASOOD SARWAR; SAJJAD AHMAD; SAQIB ALI; KHURRAM (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    Copper(II) complexes of pyrrolidinedithiocarbamate (PDTC) and diamines having the general formula, [Cu(diamine)(PDTC)]Cl, [Cu(diamine)Cl₂][Cu(PDTC)Cl] or [Cu₂(di-amine)(PDTC)₂Cl₂] (diamine = 1,3-diaminopropane, ...
  • Evaluation of Nitrogen Uptake Patterns in Spring and Winter Wheat in Western Oregon 
    DOST MOHAMMAD BALOCH; MAQSOOD AHMED KHAN; EHSANULLAH KAKAR; MOHAMMAD AYAZ KHAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    An understanding of the ground nitrogen (N) uptake pattern for wheat (Triticum aestivum L.) is essential to facilitate nitrogen management. The purpose of this study was to determine the nitrogen uptake pattern of spring ...
  • ADSORPTION OF CADMIUM (II) BY CHITIN 
    CHUNHUA XIONG (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    The feasibility of using chitin as an adsorbent for cadmium (II) was examined. The adsorption characteristics were studied as a function of solution pH, temperature, contact time et. al., Maximum uptake amount of cadmium ...
  • Thermodynamics and Kinetics of Adsorption of Dyes from Aqueous Media onto Alumina 
    IQBAL, MUHAMMAD JAVED; ASHIQ, MUHAMMAD NAEEM (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    Use of alumina for the removal of industrially important dyes namely, methylene blue, methyl blue, bromophenol blue, malachite green, eriochrome black-T, phenol red and methyl violet from aqueous media at different shaking ...
  • Purification and Characterization of Alkaline Proteases from Aspergillus terreus 
    AHSAN HUSSAIN; ABDUL MANNAN; HASSAN ZUBAIR; BUSHRA MIRZA (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    Proteases belong to an important class of enzymes known as hydrolases and catalyze hydrolysis of proteins. They act primarily to degrade proteins that are used for energy production and as biosynthetic precursors. In the ...
  • Obesity: A Road to the Type 2 Diabetes 
    MUHAMMAD ANWAR WAQAR; SANA AIJAZ; SOHAIL SHAUKAT (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    The prevalence of type 2 diabetes is on the increase. Among the other factors, obesity is considered to be a major contributor in the occurrence of type 2 diabetes by disturbing the metabolic regulators of the body. These ...
  • Modified Synthesis of Phenolic Novolac by Biomass Pyrolysis Oil 
    XU JUNMING; JIANG JIANCHUN; DAI WEIDI; SUN YUNJUAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    The possibility of synthesis of fast curing phenolic novolac has been studied under the catalyst of HCl/ Zn(AC)₂ . Synthesis of high-ortho novolac resins modified with different concentration (10, 20, 30 and 40 wt %) of ...
  • GC-MS Analysis of n-hexane Extract from Seeds and Leaves of Phoenix dactylifera L. 
    SUMBUL AZMAT; REHANA IFZAL; MUNAWWER RASHEED; FARYAL VALI; VIQAR UDDIN AHMAD (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    n-hexane extract of Phoenix dactylifera L (Date Palm) seeds and leaves was analyzed through capillary GC-MS. The compounds were identified by comparison of GC-MS spectrum with library searches. A total of forty one compounds ...
  • Role of Plant Growth Regulators on oil yield and biodiesel production of Linseed (Linum usitatissimum L) 
    FAIZANULLAH; ASGHARI BANO; ASIA NOSHEEN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    A field experiment was conducted to compare the effect of plant growth regulators (PGRs) viz. kinetin (K), chlorocholine chloride (CCC) and salicylic acid (SA) on seed yield, oil content and oil quality of Linseed (Linum ...
  • Epicuticular Wax of Tamarix aphylla L. 
    MUHAMMAD SABER; MUHAMMAD AKRAM KASHMIRI; MUSHTAQ AHMAD; RAISA KHANUM; AYESHA MOHY-UD-DIN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    Epicuticular wax from the leaves of Tamarix aphylla L. was extracted using n-hexane as a solvent and its yield was found to be 0.34 %. The wax constituents were characterized and identified by GC/MS and NMR spectroscopy. ...
  • New High Performance Liquid Chromatographic Method for Simultaneous Determination of Diclofenac and Meloxicam in Oral Formulation of Liposomes and Human Plasma 
    ASADULLAH MADNI; MAHMOOD AHMAD; MUHAMMAD USMAN; MALIK MUHAMMAD ZUBAIR; MUHAMMAD QAMAR-UZ-ZAMAN; HAJI MUHAMMAD SHOAIB; ABUBAKAR MUNIR; SHUJAT ALI KHAN; MUHAMMAD NAEEM AMIR; MUHAMMAD SALEEM QURESHI (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    A new, easy and consistent reversed-phase high-performance liquid chromatographic method with diode array detection has been developed and validated for the simultaneous determination of diclofenac potassium (DP) and ...
  • COORDINATION TRENDS OF 6-AMINO-4-HYDROXY-2-MERCAPTOPYRIMIDINE TOWARDS CO (II), NI (II) AND CU (II) IONS 
    KHALIFA MOSBEH KHALIFA; ABDSULLAM ALI MAIHUB; MILOUD EL-AJAILY; SOAD ALI MOBAIN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    Co(II), Ni(II), and Cu(II) complexes of 6-amino-4-hydroxy-2-mercaptopyrimidine have been prepared and characterized by several physiochemical tools; in terms, CHNS elemental analyses, infrared, electronic, mass, and proton ...
  • Toxic Chromium from Tanneries Pollute Water Resources and Soils of Sialkot (Pakistan) 
    UZAIRA RAFIQUE; ABIDA KALSOOM KHAN; AISHA ASHRAF; SADlA NASREEN; QAlSAR MAHMOOD; REHANA RASHID (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    The present investigation reports the concentrations of total chromium and its species i.e. chromium (Cr (III) and Cr (VI)) assessed in soil, drinking water and effluents of tanneries distributed in ten clusters of Sialkot ...
  • Comparative Study on the Leaching Characteristics of Industrial Sludge and Fly Ash using KSLP and TCLP Techniques 
    BYUNG-KEUN LEE; HYEON-WOOK HWANG; TAHlR IMRAN QURESHI; YOUNG-JU KIM (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    Leaching characteristics of industrial sludge and fly ash using Korean Standard Leaching Procedure (KSLP) and Toxicity Characteristics Leaching Procedure (TCLP) were studied. Possibilities of re-adsorption of heavy metal ...
  • PREPARATION OF COMPLEXES OF 2-[{5-((5-AMINO-1,3,4-THIADIAZOLE-2-YL)METHYL)-1,3,4-THIADIAZOLE-2-YL-IMINO}METHYL]PHENOL WITH TRANSITION METAL SULPHATES 
    NEVIN TURAN; ZUHAL ERGIN; MEMET SEKERCI (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    n the present study, 2-[{5-((5-amino-1,3,4-thiadiazole-2-yl)methyl)-1,3,4-thiadiazole-2-ylimino}methyl]phenol (L) has been synthesized by the reaction bis(2-amino-1,3,4-thiadiazolyl)methane and salicylaldehyde. The metal ...
  • Econometrics Models for Copper Recovery: A Case Study of North Waziristan-Copper Deposits 
    SARDAR ALI; MUHAMMAD MANSOOR KHAN; MUHAMMAD AZAM KHAN; MUHAMMAD TUFAIL; SADAF (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    Fourteen econometrics models have been developed to evaluate the effects of various flotation process variables like, Propylxanthate (X1 g/tonne), pH (X2,) Sodium Cyanide (X3 g/tonne), Sodium sulphide (X4 g/tonne), Frother ...
  • Assessment of Iodine Status among Hostel Employees and Students of a University in Islamabad, Pakistan 
    MUHAMMAD RAFI; KAZI QASIM MAHMOOD; MUHAMMAD TUFAIL; MUHAMMAD MANSHA CHAUDHRY; NASEEM IRFAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    Iodine deficiency and related disorders are the major health hazard in the world, especially along the Himalayas. A study has been carried out to assess the status of iodine in students and employees living in the hilly ...
  • Calibration of Shahid's Analytical Method for Adulterated Zn-EDTA Fertilizers by Ion Chromatography and Atomic Absorption Spectroscopy 
    MUHAMMAD SALIK, Ali Khan; MUHAMMAD AKRAM; SHAHID MAHMOOD MIAN; RANA JAVAID IQBAL; MUHAMMAD AKRAM QAZI (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    Chelated zinc fertilizers are usually recommended in calcareous alkaline soils to provide Zn nutrition in order to prevent possible Zn precipitation. In Punjab (Pakistan), Zn.EDTA products are being manufactured, and ...
  • Impacts of Solid Waste Leachate on Groundwater and Surface Water Quality 
    SIDRA KARIM; MUHAMMAD NAWAZ CHAUDHRY; KHURSHED AHMED; ADlLA BATOOL (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-10-20)
    The present investigation was carried out to assess the impacts of solid waste leachate on groundwater and surface water quality at unlined dumping site. Six leachate samples collected from different locations have average ...

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