Determination of histamine in fish muscle at multi-walled carbon nanotubes coated conducting polymer modified glassy carbon electrode
- A. Geto, M. Tessema, S. Admassie
- Materials Science
- 1 May 2014
Indirect voltammetric determination of caffeine content in coffee using 1,4-benzoquinone modified carbon paste electrode.
- Muluken Aklilu, M. Tessema, M. Redi-Abshiro
- ChemistryTalanta: The International Journal of Pure and…
- 15 August 2008
Determination of Levels of Essential and Toxic Heavy Metals in Lentil (Lens culinaris Medik) by Flame Atomic Absorption Spectroscopy
- S. Leshe, M. Tessema
- Chemistry
- 21 July 2014
The concentrations of trace essential metals (Co, Cu, Fe, Mn, Ni and Zn) and toxic heavy metals (Cd and Pb) in lentil samples collected from Dejen (East Gojjam), Boset (East Shewa) and Molale (North…
Voltammetric Determination of Paracetamol with Poly(3,4-Ethylenedioxythiophene) Modified Glassy Carbon Electrode
- S. Mehretie, S. Admassie, M. Tessema, T. Solomon
- Materials Science
- 2011
This study describes the preparation and application of a poly(3,4- ethylenedioxythiophene) (PEDOT) modified glassy carbon electrode for paracetamol determination in pharmaceutical samples. The PEDOT…
Preparation and characterization of cationic surfactant modified zeolite adsorbent material for adsorption of organic and inorganic industrial pollutants
- S. Hailu, S. Hailu, M. Tessema
- Engineering, Chemistry
- 1 August 2017
Simultaneous determination of caffeine and theophylline using square wave voltammetry at poly(l-aspartic acid)/functionalized multi-walled carbon nanotubes composite modified electrode
- B. Mekassa, M. Tessema, B. Chandravanshi
- Materials Science
- 1 November 2017
Electrochemical determination of catechol in tea samples using anthraquinone modified carbon paste electrode
- F. Melak, Mesfin Redi, M. Tessema, E. Alemayehu
- Chemistry
- 7 August 2013
Electrochemical investigation of catechol using square wave voltammetry with anthraquinone modified carbon paste electrode was found to be very sensitive. Compared with the unmodified carbon paste…
Lignin modified glassy carbon electrode for the electrochemical determination of histamine in human urine and wine samples
- Hulugirgesh Degefu, Meareg Amare, M. Tessema, S. Admassie
- Materials Science
- 1 March 2014
Voltammetric Determination of Nicotine at Poly(4‐Amino‐3‐Hydroxynaphthalene Sulfonic Acid)‐Modified Glassy Carbon Electrode
- A. Geto, M. Amare, M. Tessema, S. Admassie
- Materials Science, Chemistry
- 1 March 2012
A poly(4-amino-3-hydroxynaphthalene sulfonic acid)-modified glassy carbon electrode was developed for the voltammetric determination of nicotine. An oxidation signal at lower potential with higher…
Oligosaccharide dehydrogenase-modified graphite electrodes for the amperometric determination of sugars in a flow injection system.
- M. Tessema, E. Csöregi, T. Ruzgas, G. Kenausis, T. Solomon, L. Gorton
- BiologyAnalytical Chemistry
- 1 October 1997
The highest relative response found was for glucose followed by maltose and lactose, and Fructose and isomaltotriose gave the lowest responses (<1%).
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