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Browsing PhD Thesis by Issue Date

Browsing PhD Thesis by Issue Date

Now showing items 1-20 of 23

Electrochemistry of malachite green and crystal violet in aqueous solution and surfactant-based organized media

Rahman, Mohammad Mijanur (University of Dhaka, 2014-07-08)

Electrochemical behaviors of malachite green (MG) and crystal violet (CV) in aqueous solutions and different surfactant-based organized media such as, micelles, reverse micelles and microemulsions of a cationic surfactant, ...
Studies on interaction between quinolone derivatives (Antibiotics) and transition metals

Akhtar, Hossain Mohammad Naseem (University of Dhaka, 2015-11-04)

The redox behavior of few first row transition metal ions, Cr(III), Mn(II), Ni(II), Cu(II) and Zn(II) in presence and absence of the ligand ciprofloxacin were studied in the aqueous medium using Cyclic Voltammetry. ...
Development of dyes removal method from textile waste water

Ara, Nargish Jahan (University of Dhaka, 2015-11-30)

Discharge of colored effluents without discoloration originated from textile industries may cause serious problems in the receiving environments. In this study, natural materials that are saw dust, coconut coir and jute ...
Micelles, reverse micelles and microemulsions as media for kinetic studies and electrodeposition of Co, Cu, Zn, Ni and Sn

Begum, Ferdousi (University of Dhaka, 2016-08-23)

Series of micelles, reverse micelles and microemulsions of cationic, anionic and surfactants were prepared with varying water to surfactant molar ratios in a wide range of compositions and their physicochemical properties ...
Hydroxyapatite from waste materials for treatment of heavy metals in aqueous medium

Jahan, Shirin Akter (University of Dhaka, 2016-09-18)

Hydroxyapatite (HAP) is an important biomaterial which could be a promising adsorbent for removal of heavy metals from aqueous medium besides its wide application in biomedical field. Flexible hexagonal structure of HAP ...
Synthesis and characterization of metallic and functionalized nanoparticles of copper, zinc, silver and iron and their polymer composites for biomedical applications

Fatema, Ummul Khair (University of Dhaka, 2017-07-03)

Series of water in oil (w/o) microemulsions of cationic, anionic and nonionic surfactants were prepared in a wide range of compositions by varying different parameters related to the preparation of microemulsionsincluding ...
Preparation and characterization of ionic liquid based microemulsions and their application in catalysis

Alam, Shaila (University of Dhaka, 2018-02-08)

Series of ionic liquid (IL) based microemulsions were prepared with ionic and nonionic surfactants. Hydrophilic and hydrophobic ILs were used instead of water and the oil phase, respectively. The structure of the ILs were ...
Synthesis, characterisation, and study of biological activity of some sulphur heterocycles

Das, Gouranga Chandra (University of Dhaka, 2018-02-08)

Long back in 1959, Latif and co-workers, department of Chemistry, Rajshahi University , Bangladesh in an attempt to prepare dithiobenzoic acid [Ph-(C=S)-SH] from a mixture of benzaldehyde and ethanol in presence of aqueous ...
Chemical contaminants in rice, spice and vegetable samples

Sultana, Abida (University of Dhaka, 2018-02-25)

The amount of food produced is very important as the human population increases. Over the last 40 years, food production has been increased 20-50 % where pesticides were played an important role. Proper use of pesticides ...
Polymer composites based on functionalized metal analogues incorporated with ionic liquids for electrochemical applications

Roy, Hemshankar Saha (University of Dhaka, 2018-03-22)

A series of polymer composites have been prepared by using both conducting and non-conducting polymer as matrix phases and different metal oxides as dispersed phases. Conducting polymer, polyaniline (PAni) was prepared by ...
Ionic liquids and their binary systems with molecular solvents as catalyst and reaction medium for organic synthesis

Ara, Gulshan (University of Dhaka, 2018-07-23)

Protic and aprotic ionic liquids (ILs) derived from an organic base 1,8-diazabicyclo[5.4.0]-undec-7-ene (DBU) were prepared and characterized.The structure and interactions between anions and cations of the AIL were studied ...
Studies of chemical contaminants in different food stuff

Munia, Zerin Sultana (University of Dhaka, 2019-05-21)

Imidacloprid, a neonicotinoid pesticide is allowed to use in food storage. A total of 30 rice samples and 15 wheat flour samples were analyzed to determine the residaul amount of imidacloprid. Among 30 rice samples, 9 ...
Dichlorodiphenyltrichloroethane in Environmental Samples and Human Blood of Chittagong Chemical Complex Area and Pesticide Residues in Some VegetableSamples

Khalil, Farzana (University of Dhaka, 2019-06-16)

Pesticide is one of the most used components in current agricultural practices for protecting the crops from different kinds of pests. The widespread use of pesticides contaminates soil, water, air and crops. The result ...
Method Development and Quantification for Some Non Pharmacopeial drugs

Alam, ABM Mahfuz ul (University of Dhaka, 2019-10-02)

Method of analysis for six different non pharmacopeial drugs was developed and the developed method was validated taken care of all criteria of validation process. The Methods were found to be highly sensitive, selective, ...
Investigation of Adsorptive Removal of Chromium (VI) from Aquatic System Using Dust Black Tea Leaves

Hannan, Md. Abdul (University of Dhaka, 2019-10-03)

Some heavy metals are highly toxic as ions or in form of compounds. Ions or compounds of heavy metals, which are soluble in water, can be readily absorbed into living organisms. Chromium (VI ) is a harmful heavy metal ...
Studies on Interactions of Transition Metals with Leucine and Isoleucine using Spectroscopic and Electrochemical Techniques

Hasan, Md. Mahmudul (University of Dhaka, 2021-08-24)

The redox behavior of the metal ions, Cu(II), Zn(II) and Cd(II) in absence and presence of the two isomeric ligand leucine and isoleucine were studied in aqueous medium using cyclic voltammetry. It was found that the ...
INVESTIGATION ON CHEMICAL CONTAMINANTS IN SELECTED FOOD STUFFS

Reza, Md. Shahed (©University of Dhaka, 2022-04-17)

This study describes determination of pesticide residues and heavy metals in fruits and vegetables, heavy metals in turmeric powder, aflatoxins in wheat and maize, benzoic acid and sorbic acid in fruit drinks and tomato ...
Preparation, Characterization and Applications of Nanoparticles from Chitosan

Jahura, Fatema Tuj (©University of Dhaka, 2023-07-26)

Chitosan is a naturally occurring amino polysaccharide and largely applicable in biomedical field as it is biodegradable, biocompatible and nontoxic. The nanoparticles of chitosan have gained more focus in the delivery ...
Synthesis and Characterization of Nonstoichiometric Ternary and Quaternary Compounds of Bismuth Metallates, Alkali Metal Tungsten Oxides and Tungsten Metaphosphates

Simol, Hasina Akhter (©University of Dhaka, 2023-08-22)
Phytochemical and Microbiological investigation on the roots of Piper chaba Hunter and Bombax ceiba Linn.

ROY, ANATH CHANDRA (©University of Dhaka, 2023-11-22)

Piper chaba H. belonging to the Piperaceae family and Bombax ceiba L. belonging to the Bombacaceae family has been investigated for isolation of secondary metabolites and evaluation of their biological activities. The ...

Now showing items 1-20 of 23

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