PASTIC Dspace Repository

Browsing Issue 04 by Title

Browsing Issue 04 by Title

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  • Maclafferty Rearrangement in Germyl Derivatives of Organo-tin Carboxylates 
    MUHAMMAD AZIZ CHOUDHARY; KHAWAJA ANSAR YASIN; HABIB-UR-REHMAN; SADIQ-UR-REHMAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    Bimetallic compounds of general formula [(R¹)₃GeCHR²CHR³COO]₂Sn[R⁴]₂and [R¹GeCHR²CHR³COO]Sn[CH₂C(CH₃)]₃ have been synthesized by the reported methods and were studied by mass spectrometric analysis to explore their ...
  • 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, ...
  • Naturally Occurring Antifungal Aromatic Esters and Amides 
    MUHAMMAD SHAIQ ALI; SHAHNAZ; SOBIA TABASSUM; MUHAMMAD KASHIF PERVEZ; ISIAKA AJANI OGUNWANDE; OLADOSU ADEBAYO IBRAHIM (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    During the search of antifungal natural products from terrestrial plants, a new long chained aromatic ester named grandiflorate (1) along with spatazoate (2) from Portulaca grandiflora and N-[2-methoxy-2-(4-methoxyphenyl) ...
  • 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 ...
  • Organochlorine Pesticides (OCPs) Contaminants in Sediments from Karachi Harbour, Pakistan 
    NUZHAT KHAN; JOCHEN MULLER; SHAUKAT HAYAT KHAN; SHAHID AMJAD; SHAFI NIZAMANI; MUHAMMAD IQBAL BHANGER (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    Mangrove swamps, intertidal mudflats and creeks of backwaters represent main feature of Karachi harbour area. Karachi harbour sediment is under continuous influence of untreated industrial effluents and domestic waste ...
  • Preparation of High Exhaust Chrome from Leather Shavings and Hydrocarbons with its Application in Leather Processing for Green Tanning Technology 
    HAFIZ RUB NAWAZ; BARKAT ALI SOLANGI; UZMA NADEEM; BEENA ZEHRA (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    The use of chrome in tanning has made the remarkable advances to achieve the best quality and quantity of leather. But the chrome tanning process is associated with the generation of heavy metal containing solid wastes and ...
  • PROPERTY OF NOVEL SODIUM ION EXCHANGER LI₁.₄CR₀.₂AL₀.₂TI₁.₆(PO₄)₃ 
    JIAN- ZHI SUN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-04)
    A novel sodium specific kind of ion exchanger LI₁.₄CR₀.₂AL₀.₂TI₁.₆(PO₄)₃ fabricated by a solid-state reaction method. The microstructure XRD, FTIR, Raman spectra, adsorption performances were investigated. The average grain ...
  • 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 ...
  • Review on Properties, Dispersion and Toxicology of Carbon Nanotubes 
    KHALID SAEED (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    Carbon nanotubes (CNTs) have the most intensely studied nanostructures because of their unique properties. There are two types of carbon nanotubes CNTs, single-walled carbon nanotubes (SWNTs) and multi-walled carbon nanotubes ...
  • Spectrophotometric Method for Quantification of Fenoxaprop-p-ethyl Herbicide in Commercial Formulations and Agricultural Samples 
    JASMIN SHAH; MUHAMMAD RASUL JAN; FARHAT-UN-NISA SHEHZAD; MIAN MUHAMMAD (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    A simple spectrophotometric method was developed for determination of fenoxaprop-p-ethyl herbicide in agricultural samples. The method is based on the acid hydrolysis of fenoxaprop-p-ethyl to form 6-chloro-2,3-dihydroben ...
  • Strategies for Low-Cost Water Defluoridation of Drinking Water-A Review of Progress 
    AMIR HAIDER MALIK; SADIA NASREEN; QAISAR MAHMOOD; ZAHID MAHMOOD KHAN; RIZWANA SARWAR; GHULAM JILANI; AFSAR KHAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    One of the biggest challenges of 21st century is to ensure safe drinking water-supplies and environmental sanitation which are vital for protecting the environment, improving health and alleviating poverty. Natural ...
  • Studies on the Preparation of Sea buckthorn (Hippophae rhamnoides L.) Powder I)rink and Its Nutritional Evaluation 
    ARSHAD HUSSAIN; JAVED ALI; SHAFQAT ULLAH; HAMIDA ABID (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    The pulp of sea buckthorn (Hippophae rhamnoides L) fruit was processed to obtain different concentrations (11.8°, 33°, 66° & 75° brix) used for the preparation of sea buckthorn powder drinks. Various parameters of the ...
  • SYNTHESIS OF ETHYL-4,6-DIHYDROXY-2-OXO-1-PHENYL-5-ARYLAZOPYRIDINE-3-CARBOXYLATE, PART (IV): NEW DISPERSE DYES 
    KHAN, KHALID MOHAMMED; MAHWISH; ABDUL JABBAR; SHAHNAZ PARVEEN; RASHEEDA PARVEEN; SYED MOAZZAM HAIDER (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    The reaction of ethyl-4,6-dihydroxy-2-oxo-1-phenyl pyridine-3-carboxylate (3) with different diazotized substituted aromatic amine (2) yielded compound ethyl-4,6-dihydroxy-2-oxo-1-phenyl-5-arylazopyridine-3-carboxylate (4) ...
  • SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL STUDIES OF 2-(4-NITROPHENYLAMINO-CARBONYL)BENZOIC ACID AND ITS COMPLEXES WITH CR(III), CO(II), NI(II), CU(II) AND ZN(II) 
    MUHAMMAD IMRAN; SUMAIRA NAZIR; SHOOMAILA LATIF; ZAID MAHMOOD (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
    Cr(III), Co(II), Ni(II), Cu(II) and Zn(II) complexes of 2-(4-Nitrophenylaminocarbo-nyl)benzoic acid were synthesized and characterized on the basis of physical, analytical and spectroscopic data. The ligands, as well as ...
  • 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 ...

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