Browsing MASTERS' THESES (Chemistry) by Issue Date

ANALYSIS OF NUTRITIONALLY IMPORTANT ELEMENTS IN SOME VEGETABLES AND BIOLOGICAL STANDARD REFERENCE MATERIALS

Singh, Manjul (1998)

Seventeen green and leafy vegetables have been analysed for eight nutritionally important elements (Ca, Cu, Mn., Mg, Fe, Co, Zn and Cr) and three environmentally toxic heavy metal pollutants (Ni, Cd and Pb) in various ...

EXTRACTION AND DETERMINATION OF METAL IONS BY USING THE LIGAND HAVING NITROGEN AND SULPHUR DONOR ATOMS

Pokharia, Sandeep (1998)

3-Amino-5-mercapto-1,2,4-triazole (5.0x10-2M) and its schiff base with salicylaldehyde (synthesis described) have been evaluated for solvent extraction of Cu from its aqueous solution (1.0x10-2M) into kerosene and toluene ...

SYNTHESIS AND CHARACTERISATION OF DOUBLE METAL CYANIDES

Verma, Minakshi (1998)

Double metal cyanides are the special class of compounds having importance in scientific and biological fields. The present work describes the synthesis of potassium hexacyanomanganate (III) and potassium hexa-cyanochromate(III) ...

TOXIC METAL IONS ADSORPTION ON BAGASSE FLY ASH

Rashmi (1998)

Adsorption is an efficient and widely used technique for the treatment and recovery of the metal ion from the waste water. The bagasse fly ash has currently created an interest among the various workers to use it as an ...

PHOTOOXIDATION OF CERTAIN ORGANICS USING TiO2 SUSPENSION AS CATALYST

Singh, Jagat (1998)

TiO2 sensitized photochemical reaction of ethanolamine has been studied under different experimental conditions and reaction environments. The irradiation of TiO2 - ethanolamine reaction mixture by the light of wavelength ...

STUDIES OF METAL IONS INTERACTION WITH PURINE PYRIMIDINE BASE PAIR

Kumar, Lokesh (1998)

The interaction of some divalent transition metal ions, viz. Co (II), Ni (II), Cu (II), Zn (II) and Cd (II) with adenine (A), uracil (U) and 5 bromouracil (5 BrU) separately in binary (1:1) and in presence of each other ...

STUDIES ON VANADIUM (V), MOLYBDENUM (VI) AND TUNGSTEN (VI) DIOXO AND PEROXO COMPLEXES OF POLYDENTATE LIGANDS

Bharti, Neelam (1998)

Stirring of V205 in an aqueous solution of KOH and 30% H202 results in the formation of oxoperoxovanadium(V) species, [V0(02)2.X H20]. Reaction of this species with 2-(a-hydroxymethyl)benzimidazole or 2-(a-hydroxyethyl)b ...

DIFFERENTIAL PULSE VOLTAMMETRIC DETERMINATION OF GUANOSINE AND 8-HYDROXYGUANOSINE

Deepshikha (1998)

Purine nucleosides are well known for their metabolic and biological effects on human beings. The development of sophisticated techniques in electrochemistry and growing importance of oxidation reactions in biological ...

ESTIMATION OF METAL IONS BY MACROCYCLIC MEMBRANE ELECTRODES

Shailendra (1998)

Polystyrene and Poly (vinyl chloride) based membranes of Ph4(14)tetraene and Me8(14)ane were prepared and explored for their possible use as Cr3+ and Al3+ selective electrodes. The solvent mediators dibutyl phthalate (DBP), ...

SYNTHESIS, CHARACTERIZATION AND CATALYTIC ACTIVITY STUDIES OF OPTICALLY ACTIVE PYRAZOLES

Tyagi, Nidhi (2006)

The optically active pyrazoles (+)-3(5)(cyclohexylethylamino)methylpyrazole (3c) and (-)-3(5)-N-(phenylmethylene)benzenaminopyrazole (31) were prepared by the reaction of diketopiprazine with optically active amine ...

ANALYSIS OF ORGANIC CONSTITUENTS AND TRACE ELEMENTS OF ALOE VERA

Krishna, Kosaraju Vamsi (2006)

Ten organic constituents (aloesol, aloesin, aloenin, aloeresinA, isobarbaloin, isoaloresin, barbaloin, feruloyaloeresin, aloeresinE, and aloe-emodin) of Aloe vera plant have been determined. These compounds are found be ...

NOVEL HALOGEN-SUBSTITUTED CYCLOHEXA-Z4-DIENONES AS DIENES FOR THE INTER MOLECULAR DIELS-ALDER REACTION. SYNTHESIS AND CHARACTERIZATION OF BICYCLO[2.2.2.] OCTENONE DERIVATIVES

Rajora, Virendra Singh (2006)

Utilization of easily available and less expensive starting materials for the rapid construction of complex molecules with defined stereochemistry is an exciting and challenge for the synthetic organic chemists. In this ...

SYNTHESIS OF SOME PHARMACOLOGICALLY ACTIVE QUINOXALINE DERIVATIVES AND STUDY ON THE KINETICS OF THE REACTION OF 2-CHLOROQUINOXALINE WITH PHENYLHYDRAZINE

Mishra, Sushanta Kumar (2006)

Synthesis of various types of heterocyclic compounds is dominating the field of modern organic and medicinal chemistry. The presence of heterocyclic rings in drugs represents the majority of known pharmaceutical preparations. ...

PERCHLORATE ION SELECTIVE SENSOR BASED ON NEWLY SYNTHESIZED N1, N3 (114-BENZOIMIDAZOLE.241) ISOPHTHALAMIDE RECEPTOR

Kumar, Ravindra (2006)

Novel ionophore, NI,N3-di(1H-benzoimidazole-2-ypisophthalamide receptor (I) has been synthesized and characterized by UV, IR and CHN analysis. Polyvinyl chloride (PVC) based membranes of (I) have been prepared and explored ...

ANALYSIS OF TRACE ELEMENTS AND ORGANIC CONSTITUENTS IN ARJUNA (TERMINALIA ARJUNA) BARK

Gajbhiye, Pratima T. (2006)

Arjuna (Terminalia Arjuna) bark powder is a widely used heart tonic as described in ancient Sanskrit texts. Five samples including two commercial brands, collected from different places have been analyzed for elemental ...

ZEOLtTE-Y ENCAPSULATED COPPER COMPLEXES AND THEIR CATALYTIC ACTIVITIES

Singh, Baljit (2007)

Interaction of Copper(II) exchanged zeolite-Y with N,N'- ethylenebis(pyridoxyliminato) (H2pydx-en, I) and propylenebis(pyridoxyliminato) (H2pydx-1,3-pn, II) in refluxing methanol leads to the formation of corresponding ...

SYNTHESIS AND CHARACTERIZATION OF LUMINESCENT MATERIALS

Tyagi, Payal (2007)

We have successfully synthesized new organic and organometallic luminescent materials which possess moderate thermal stability and may find use in electroluminescent devices. Complexation behavior of bipyridine and ...

ANTIMONY TRICHLORIDE-CATALYZED AMINOLYSIS OF EPDXIDES

Singh, Mahesh Chander (2007)

Synthesis of n-amino alcohols from the reaction of epoxides such as cyclohexene oxide and cyclopentene oxide with aniline and its derivatives using antimony trichloride as a novel catalyst is described. This methodology ...

SYNTHESIS OF SOME HETEROCYCLIC COMPOUNDS AND THEIR CHARACTERIZATION

Rani, Varu (2007)

A number of amidine derivatives were synthesized by condensation of 2-cyanopyridine, 4-cyanopyridine and 2-cyanopyrazine with amines in the presence of sodium methoxide. All the compounds, that is, III(a-f), IV(a-g), and ...

ORGANOSILICON DERIVATIVES OF OXYGEN AND NITROGEN DONOR LIGANDS

Maurya, Sanjay Kumar (2007)

Reactions of chlorotrimethylsilane with long chain fatty acids in 1:1 molar ratio led to the formation of a new series of trimethylsilicon(IV) carboxylates of general formula Me3Si(OCOR), [where R is different for different ...

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