PROMOTING ACCESS TO AFRICAN RESEARCH

Bulletin of the Chemical Society of Ethiopia - Vol 26, No 1 (2012)

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Table of Contents

Articles

Determination of lead at nanogram level in water samples by resonance light scattering technique using tetrabutyl ammonium bromide as a molecular probe EMAIL FREE FULL TEXT
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Fengling Cui, Yanru Yun, Guangquan Hui, Yi Wang
http://dx.doi.org/10.4314/bcse.v26i1.1
A novel separation/preconcentration technique based on ultrasonic dispersion liquid-liquid microextraction for determination of trace cobalt by flame atomic absorption spectrometry EMAIL FREE FULL TEXT
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Yukun Wang, Xiaojing Ke, Jingwen Zhang, Xin Du, Jingjun Ma, Jingci Li
http://dx.doi.org/10.4314/bcse.v26i1.2
Solid phase extraction of trace amounts of palladium ions using multiwalled carbon nanotube modified by N,N’-bis(2-hydroxy-benzylidene)-2,2’(aminophenylthio) ethane prior to determination by flame atomic absorption spectrometry EMAIL FREE FULL TEXT
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T. Shamspur
http://dx.doi.org/10.4314/bcse.v26i1.3
Concentration levels of major and trace metals in onion (Allium cepa L.) and irrigation water around Meki Town and Lake Ziway, Ethiopia EMAIL FREE FULL TEXT
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Reta Birhanu Kitata, Bhagwan Singh Chandravanshi
http://dx.doi.org/10.4314/bcse.v26i1.4
Composition, mineral safety index, calcium, zinc and phytate interrelationships in four fast-foods consumed in Nigeria EMAIL FREE FULL TEXT
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E.I. Adeyeye, O.T. Orisakeye, M.A. Oyarekua
http://dx.doi.org/10.4314/bcse.v26i1.5
Characteristics of oils and nutrient contents of Nigella sativa Linn. and Trigonella foenum-graecum seeds EMAIL FREE FULL TEXT
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M. Abbas Ali, M. Abu Sayeed, M. Shahinur Alam, Mst. Sarmina Yeasmin, Astaq Mohal Khan, Ida I. Muhamad
http://dx.doi.org/10.4314/bcse.v26i1.6
PVC-membrane potentiometric sensors based on a recently synthesized Schiff base for Fe(III) ion EMAIL FREE FULL TEXT
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Iran Sheikhshoaie, Tayebeh Shamspur, Ali Mostafavi, S. Yousef Ebrahimipur
http://dx.doi.org/10.4314/bcse.v26i1.7
Differential pulse voltammetric determination of theophylline at poly(4-amino-3-hydroxyl naphthalene sulfonic acid) modified glassy carbon electrode EMAIL FREE FULL TEXT
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Meareg Amare, Shimelis Admassie
http://dx.doi.org/10.4314/bcse.v26i1.8
Synthesis, characterization and thermodynamic studies of complexes of dimethyl, diethyl, and diphenyltin(IV) dichlorides with (2H)-1,4-benzothiazine-2,3-(4H)-dione dioxime EMAIL FREE FULL TEXT
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Abedien Zabardasti, Ali Kakanejadifard, Leyla Shabani
http://dx.doi.org/10.4314/bcse.v26i1.9
Synthesis, magnetic and spectroscopic studies of Ni(II), Cu(II), Zn(II) and Cd(II) complexes of a newly Schiff base derived from 5-bromo-2-hydroxybezylidene)-3,4,5-trihydroxybenzohydrazide) EMAIL FREE FULL TEXT
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Abeer A. Alhadi, Shayma A. Shaker, Wagee A. Yehye, Hapipah Mohd Ali, Mahmood A. Abdullah
http://dx.doi.org/10.4314/bcse.v26i1.10
Synthesis of 8-methylnonane-1,6,7-trien-4-one and related allenes as potentially useful synthetic precursors EMAIL FREE FULL TEXT
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S.J.M. Mdachi
http://dx.doi.org/10.4314/bcse.v26i1.11
Efficient synthesis of novel azo compounds based on pyrimido[4,5-e][1,3,4]thiadiazine EMAIL FREE FULL TEXT
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Mohsen Nikpour, Soroush Zarinabadi, Sattar Saberi
http://dx.doi.org/10.4314/bcse.v26i1.12
One-pot three-component synthesis of 4-aryl-3,4-dihydro-pyrimidin-2(1H)-thiones catalyzed by Ni loaded SiO2 EMAIL FREE FULL TEXT
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Suresh Maddila, Sreekanth B. Jonnalagadda
http://dx.doi.org/10.4314/bcse.v26i1.13
Physicochemical analysis of Tigray honey: An attempt to determine major quality markers of honey EMAIL FREE FULL TEXT
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Kebede Nigussie, P.A. Subramanian, Gebrekidan Mebrahtu
http://dx.doi.org/10.4314/bcse.v26i1.14
Synthesis and crystal structure of trans-[Ni(pyzdcH)M2(H2O) 2] based on pyrazine-2,3-dicarboxylic acid EMAIL FREE FULL TEXT
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Mohsen Nikpour, Hossein Eshtiagh-Hosseini, Masoud Mirzaei, Marek Necas, Nafiseh Alfi
http://dx.doi.org/10.4314/bcse.v26i1.15
Microwave assisted oxidative coupling of thiols to symmetrical disulfides with tripropylammonium fluorochromate(VI) (TPAFC) EMAIL FREE FULL TEXT
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Mohammad Kazem Mohammadi, Shahriare Ghammamy
http://dx.doi.org/10.4314/bcse.v26i1.16
Heteropolyacids as an efficient and reusable catalytic system for the regiospecific nitration of phenols with metal nitrates EMAIL FREE FULL TEXT
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Bita Baghernejad, Majid M. Heravi, Hossein A.Oskooie, Fatemeh F. Bamoharram
http://dx.doi.org/10.4314/bcse.v26i1.17
Synthesis of stabilized phosphorus ylides from electron-poor alcohols and their applications in the preparation of 2,5-dihydrofuran derivatives EMAIL FREE FULL TEXT
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Sadegh Salmanpour, Ali Ramazani, Yavar Ahmadi
http://dx.doi.org/10.4314/bcse.v26i1.18


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