Volume 33: Recent submissions

  • 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 ...
  • Localization of Streptolysin S (SLS) by Blood Agar Overlay Technique (Zymogram) 
    BADARUDDIN A. MEMON (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    Streptolysin S (SLS) is the non-antigenic, oxygen-insensitive cytolysin which is produced by Group A streptococci. It is largely responsible for a zone of beta-haemolysis surrounding colonies on blood agar media. In this ...
  • Concentration of Residual Copper in the Bitter Gourd Samples Available in Punjab-Pakistan 
    ATHER, ABDUL QAYYUM; SABRI, MUHAMMAD USMAN; PHOOL SHAHZADI (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    Copper is very common substance that occurs naturally in the environment and spread through natural phenomena. Human widely use copper. In agriculture copper sulfate is used as a pesticide and fertilizer. The trade ...
  • Historical Development of Magnetite Nanoparticles Synthesis 
    KHAN, UMAR SAEED; KHATTAK, NAZIR SHAH; AMINUR RAHMAN; FARIDULLAH KHAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    Top down and bottom up are two fundamental routes for the formation of magnetite nanoparticles (MNPs). These routes are generally utilized for producing technologically and economically significant MNPs. This review discusses ...
  • Gasification Characteristics of Auto Shredder Residue 
    SHAHID NAVEED; NAVEED RAMZAN; ABDULLAH MALIK; MUHAMMAD AKRAM; ROSKILLY AP (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    Given the large volume of used tyre waste generated each year it is imperative that suitable re-use and disposal techniques are developed for dealing with this problem; presently these include rethreading, reprocessing for ...
  • Effect of UHT Processing and Storage Conditions on Physico-chemical Characteristics of Buffalo Skim Milk 
    IMTIAZ HUSSAIN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-12-20)
    The obtained results indicated that physico-chemical and nutritional changes in UHT processed buffalo skimmed milk were more pronounced at 45°C than 25°C and 10°C. Duration of storage adversely affected the chemical and ...
  • Phytochemical and Antimicrobial Studies of Grewia tenax 
    EJAZ AHMED; AHSAN SHARIF; SABBIR HUSSAIN; ABDUL MALIK; MUKHTAR-UL-HASSAN; MUNAWAR ALI MUNAWAR; SAEED AHMAD NAGRA; JAMIL ANWAR; MUHAMMAD ASHRAF; NIGHAT AFZA; MAKSHOOF ATHAR (Karachi: The Chemical Society Of Pakistan, 2011-10-12)
    For the first time eleven compounds have been isolated from the ethyl acetate soluble fraction of whole plant of Grewia tenax namely, β-sitosterol (1), β-sitosteryl acetate (2), β-amyrin (3), β-amyrin acetate (4), ...
  • Microwave Assisted Synthesis of Triphenodioxazines: A Novel and Convenient Approach 
    MUHAMMAD NAJEEBULLAH; MUNAWAR ALI MUNAWAR; AMRAN WAHEED; AHSAN SHARIF; EJAZ AHMED (Karachi: The Chemical Society Of Pakistan, 2011-10-11)
    A novel and economical method for the synthesis of triphenodioxazines is described. The method involves the oxidative cyclisation of the intermediates 2,5-bis-(arylamino)-3,6- dichlorocyclohexa-2,5-diene-1,4-dione in 95-97% ...
  • Synthesis of High-Activity TiO2/WO3 Photocatalyst via Environmentally Friendly and Microwave Assisted Hydrothermal Process 
    GUANGJUAN REN; YUAN GAO; JUNGANG YIN; AN XING; HUITAO LIU (Karachi: The Chemical Society Of Pakistan, 2011-10-09)
    This work focused on the synthesis of high-activity TiO₂/WO₃ photocatalysts through an environmentally friendly and novel process. A high energy-efficient microwave assisted hydrothermal method was employed to prepare ...
  • Comparing Heavy Metals Accumulation Potential in Natural Vegetation and Soil Adjoining Wastewater Canal 
    NAUREEN AURANGZEB; MUHAMMAD IRSHAD; FURRUKH HUSSAIN; QAISAR MAHMOOD (Karachi: The Chemical Society Of Pakistan, 2011-10-09)
    Heavy metal (HM) pollution of waters, soils and vegetation is a major ecological problem that needs to be investigated. The present study involved the collection of soil samples and natural vegetations (Tribilas terristris, ...
  • Potentiometric Titrations of Para and Nitro Substituted Aromatic Acids and their Mixtures in Methylethylketone 
    CEMAL ÖZEROĞLU; MESUT KARAHAN (Karachi: The Chemical Society Of Pakistan, 2011-10-08)
    In this study, it was the purpose to examine the potentiometric titrations of para and nitro substituted aromatic acids in methylethylketone (MEK) as a non-aqueous solvent. Good analytical results were obtained in determining ...
  • Synthesis and Physiochemical Investigation of Cobalt (II) and Nickel (II) Complexes of 1-2-[(Z)-2-(3-acetyl-4-hydroxyphenyl)-1-diazenyl]phenyl-1-ethanone 
    ABDELSALAM MAATOQ HAMIL; MAREI MAILOUD EL-AJAILY (Karachi: The Chemical Society Of Pakistan, 2011-10-07)
    Two divalent metal complexes of Co(II) and Ni(II) ions with the 1-2-[(Z)-2-(3-acetyl-4- hydroxyphenyl)-1-diazenyl]phenyl-1-ethanone were synthesized and investigated by several tools such as; CHN elemental analyses, molar ...
  • Effect of Fluorozis on the Erythrocyte Antioxidant Enzyme Activity Levels 
    MEHMET AKDOGAN; DUDU YILMAZ; MUSTAFA YONTEM; SULEYMAN KALELI; IBRAHIM KILIC (Karachi: The Chemical Society Of Pakistan, 2011-10-06)
    While the flourine level of (drinking) water was higher than normal ranges in the center of Isparta region before 1995 year, this problematic situation is solved in later years. (However) the individuals who are staying ...
  • Removal of Toxic Dichlorophenol from Water by Sorption with Chemically Activated Carbon of Almond Shells – A Green Approach 
    NADIA JAMIL; NAVEED AHSAN; MUNAWAR ALI MUNAWAR; JAMIL ANWAR; UMER SHAFIQUE (Karachi: The Chemical Society Of Pakistan, 2011-10-05)
    Chlorophenols (CP) represents a group of organic compounds having substituted chlorines attached to phenol ring. These trace organic pollutants represent a major environmental concern, because of toxicity, non-biodegradability, ...
  • Preparation of Ethylcellulose Latex by Aqueous Dispersions: Importance of the Particle Size and Plasticizer 
    MAHMOOD IQBAL; CHENGZHI CHUAI; KALSOOM MAHMOOD; YAN HUANG; HUI LIU; MUHAMMAD AIJAZ (Karachi: The Chemical Society Of Pakistan, 2011-10-04)
    Based on phase transfer processes ethylcellulose (EC) latex was prepared using dibutyl sebacate (DBS) as plasticizer and oleic acid, ammonia water as an emulsifier to evaluate film-formation properties. Atomic force ...
  • Modeling of Cd(II) Sorption on Mixed Oxide 
    MUHAMMAD WASEEM; SYED MUSTAFA; ABDUL NAEEM; KHIZAR HUSSAIN SHAH; SAMAD YAR HUSSAIN; MUHAMMAD SAFDAR (Karachi: The Chemical Society Of Pakistan, 2011-10-02)
    Mixed oxide of iron and silicon (0.75M Fe(OH)₃:0.25M SiO₂) was synthesized and characterized by various techniques like surface area analysis, point of zero charge (PZC), energy dispersive X-rays (EDX) spectroscopy, ...
  • Two Dimensional X-Ray Diffraction (2D-XRD) studies on Olivine of U.S.A. 
    SALMA JABEEN; SYED MOHSIN RAZA; MUHAMMAD ASHFAQ AHMED; MASOOM YASIN ZAI; KURT ERLACHER (Karachi: The Chemical Society Of Pakistan, 2011-10-01)
    The Olivine (Mg, Fe) 2SiO₄ of USA has been studied with two dimensional X-ray diffracto meter (D8 discover with GADDS). The two distinct phases of orthorhombic structure, one with Mg₈ [Fe₂ SiO₄] and the other with Mg₂ SiO₄ ...
  • Optimal Method for Preparation of Magnetite Nanoparticles 
    UMAR SAEED KHAN; NAZIR SHAH KHATTAK; AMINUR RAHMAN; FARIDULLAH KHAN (Karachi: The Chemical Society Of Pakistan, 2011-10-03)
    This paper deals with the synthesis and characterization of magnetite nanoparticles via the controlled modified chemical coprecipitation method using ferrous and ferric salt solution in alkaline medium with out any surfactant ...
  • Removal of Reactive Blue 19 from Wastewaters by Physicochemical and Biological Processes-A Review 
    MARIA SIDDIQUE; ROBINA FAROOQ; ASHRAF SHAHEEN (Karachi: The Chemical Society Of Pakistan, 2011-04-26)
    The developments for the removal of reactive blue 19 dye (RB 19) by various physicochemical methods such as sonolysis, photocatalysis, electrochemical, ozonolysis, adsorption, hydrolysis and biological methods like microbial ...
  • Effect of Season and Soil Concentration on the Uptake of Minerals in Spinacia Oleracea 
    AVED ABBAS BANGASH; MUHAMMAD ARIF; FAIZULLAH KHAN; FARIDULLAH KHAN; IQBAL HUSSAIN (Karachi: The Chemical Society Of Pakistan, 2011-04-25)
    To study the effect of season and soil concentration on the uptake of minerals in Spinacia oleracea, it was grown on minerals chromium (Cr), zinc (Zn), manganese (Mn), copper (Cu), magnesium (Mg) and iron (Fe) supplemented ...

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