Vol. 20 No. 1 (2006) | Bulletin of the Chemical Society of Ethiopia

Published: 2006-05-08

SIMULTANEOUS SEPARATION AND PRECONCENTRATION OF TRACE AMOUNT OF COPPER, NICKEL, CADMIUM AND ZINC IONS ONTO MODIFIED AMBERLITE XAD-4 LOADED WITH 5-Br-PADAP

M.A. Taher*, A. Mostafavi, S.Z. Mohammadi Mobarake, D. Afzali

1-7

DOI:

10.4314/bcse.v20i1.21138

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ANALYSIS OF VEHICULAR FALLOUTS FROM TRAFFIC IN THE KUMASI METROPOLIS, GHANA

D.K. Essumang*, D.K. Dodoo, S. Obiri, B.A.K. Oduro

9-15

DOI:

10.4314/bcse.v20i1.21139

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REMOVAL OF EXCESS FLUORIDE FROM WATER BY ALUMINUM HYDROXIDE

Beneberu Shimelis, Feleke Zewge*, Bhagwan Singh Chandravanshi

17-34

DOI:

10.4314/bcse.v20i1.21140

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COPPER(II) COMPLEXES OF o-VANILLIN ACETYLHYDRAZONE (H₂L) AND THE SINGLE-CRYSTAL X-RAY STRUCTURE OF [{Cu(HL)(H_{O)(HPZ)}].NO₃}

Ousmane Diouf*, Mohamed Gaye, Diariétou Gningue Sall, Abdou Salam Sall, Yves Pontillon, Andrea Caneschi

35-43

DOI:

10.4314/bcse.v20i1.21141

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PREPARATION, SPECTROSCOPIC STUDIES AND X-RAY STRUCTURE OF HOMOBINUCLEAR LANTHANIDE(III) COMPLEXES DERIVED FROM 2,6-DIFORMYL-4-CHLOROPHÉNOL-BIS-(2'-HYDROXY-BENZOYLHYDRAZONE)

Pepe Marcel Haba, Farba Bouyagui Tamboura, Ousmane Diouf, Mohamed Gaye*, Abdou Salam Sall, Cheick Abdoul Baldé, Carla Slebodnick

45-54

DOI:

10.4314/bcse.v20i1.21142

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ORGANOSILICON CHEMISTRY I: CYCLOPROPANATION BY CARBENE OR CARBENOID ADDITION TO AN ALLYLIC SILANE

E.O. Dare*, Ling-Kang Liu

55-60

DOI:

10.4314/bcse.v20i1.21143

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PHLOROGLUCINOL DERIVATIVES AND FLAVONES FROM HELICHRYSUM PARONYCHIOIDES

J. Mutanyatta-Comar, O.J.K. Phale, B.M. Abegaz*, K. Croft

61-68

DOI:

10.4314/bcse.v20i1.21144

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**3,7-DIDEACETYL-6α-HYDROXYKHIVORIN, A NEW LIMONOID FROM KHAYA SENEGALENSIS (MELIACEAE)**

Michel K. Tchimene, Dieudonne Ngamga, Pierre Tane*, Olov Sterner, Joseph D. Connolly

69-73

DOI:

10.4314/bcse.v20i1.21145

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GAS CHROMATOGRAPHIC AND SPECTROSCOPIC ANALYSIS OF EPOXIDISED CANOLA OIL

E.T. Akintayo*, T. Ziegler, A. Onipede

75-81

DOI:

10.4314/bcse.v20i1.21146

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SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF INSIGNIN AND ITS 8-METHOXY- AND 6-DEMETHOXY DERIVATIVES

Aamer Saeed

83-87

DOI:

10.4314/bcse.v20i1.21147

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CUMENE CRACKING ON MODIFIED MESOPOROUS MATERIAL TYPE MCM-41

Ahmed Belhakem*, Abdelkader Bengueddach

89-97

DOI:

10.4314/bcse.v20i1.21148

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CATALYTIC PROPERTIES AND ACIDITY OF MODIFIED MCM-41 MESOPOROUS MATERIALS WITH LOW Si/Al RATIO: HEPTANE ISOMERISATION

Ahmed Belhakem*, Abdelkader Bengueddach

99-112

DOI:

10.4314/bcse.v20i1.21149

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THE INFLUENCE OF TRANSITION METALS ON THE PERFORMANCE OF Pt Rh Pd/γ-AL₂O₃ THREE WAY CATALYSTS FOR PURIFICATION OF AUTOMOTIVE EXHAUST GAS

Laitao Luo*, Zhonghua Gu, Jianjun Guo

113-120

DOI:

10.4314/bcse.v20i1.21150

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STRUCTURE OF Co(III) AND Fe(III) TRANSITION METAL IONS IN AQUEOUS SOLUTION

Ahmed M. Mohammed*

121-131

DOI:

10.4314/bcse.v20i1.21151

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THE COMPARISON OF STRUCTURE AND PROPERTY OF AZT CONFORMERS AND ITS ANALOGUE CS-87 USING DENSITY FUNCTIONAL THEORY CALCULATIONS: A STUDY OF ANTI-AIDS

M. Monajjemi*, A. Abedi, H. Passdar

133-142

DOI:

10.4314/bcse.v20i1.21152

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SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF IODATE USING METHYLENE BLUE AS A CHROMOGENIC REAGENT

B. Narayana*, Chand Pasha, Tom Cherian, Mendalin Mathew

143-147

DOI:

10.4314/bcse.v20i1.21153

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APPLICATION OF A MIXED SOLVENT SYSTEM IN THE DETERMINATION OF METALS IN LUBRICATING OILS USING ATOMIC ABSORPTION SPECTROMETRY

E.O. Ojeka*

149-153

DOI:

10.4314/bcse.v20i1.21154

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EVALUATION OF THE LEVELS OF TOTAL VOLATILE BASES AND TRIMETHYLEAMINE FORMED IN FISH STORED AT LOW TEMPERATURE

M. Horsfall Jnr*, B.S. Kinigoma, A.I. Spiff

155-159

DOI:

10.4314/bcse.v20i1.21155

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INTERACTION OF 2-(2'-HYDROXY)PHENYLBENZOTHIAZOLINE WITH SOME METAL IONS: DETERMINATION OF ITS DISSOCIATION CONSTANT IN AQUO-ORGANIC MEDIA

K. Laxmi, G. Bhargavi, B. Sireesha, Ch. Sarala Devi*

161-166

DOI:

10.4314/bcse.v20i1.21156

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SYNTHESIS AND PRELIMINARY STRUCTURAL CHARACTERIZATION OF SOME LANTHANIDE(III) SEMICARBAZONE COMPLEXES

Ram K. Agarwal*, Surendra Prasad*, Rajiv Garg, Sushil K. Sidhu

167-172

DOI:

10.4314/bcse.v20i1.21157

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**SCORODOPHLONE A, A NOVEL ALKYLSULFONE FROM THE SEEDS OF SCORODOPHLOEUS ZENKERI. HARMS**

Jules Lobe Songue, Anatole G. B. Azebaze*, Juliette C. Vardamides, Jean C. Ndom, Alain Blond, Michèle Meyer, Etienne Dongo, Théophile Ngando Mpondo*

173-176

DOI:

10.4314/bcse.v20i1.21158

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**VOLATILE LEAF OIL CONSTITUENTS OF OCIMUM AMERICANUM L. OCCURING IN WESTERN KENYA**

J.C. Matasyoh*, M.M. Bendera, J.O. Ogendo, E.O. Omollo, A.L. Deng

177-180

DOI:

10.4314/bcse.v20i1.21159

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