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You searched for +publisher:"Addis Ababa University" +contributor:("Shimelis Admassie(Dr.)"). Showing records 1 – 2 of 2 total matches.

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Addis Ababa University

1. Tadele, Hunde. Simultaneous Determination of paracetamol and para -amino phenol using PEDOT Modified Glassy Carbon Electrode .

Degree: 2012, Addis Ababa University

In this study reliable and simple electrochemical method has been proposed for the simultaneous determination of paracetamol and para-amonophenol in pharmaceutical formulations. The oxidation and reduction peak potentials in of APAP at PEDOT/GC occurred at 381 and 353.65 mV vs. Ag/AgCl, respectively at pH 7.0, while those for PAP at PEDOT/GC appeared at 127 mV and 92 mV, respectively. In comparison to bare glassy carbon, the apparent reversibility and potential shift of the electrochemical reactions of APAP and PAP were significantly improved at PEDOT/GC. A peak separation of about 257.48 mV was observed while running the differential pulse voltammogram of APAP and PAP. This allows for the simultaneous determination of APAP and PAP in tablets. The linear range were found to be 1-100 μM for APAP and 4-320 μM for PAP with the detection limits of 0.4048 μM and 1.1880 μM (calculated by 3σ/m) respectively. Advisors/Committee Members: Shimelis Admassie(Dr.) (advisor).

Subjects/Keywords: Poly (3,4-ethylenedioxythiophene; modified glassy carbon electrode; paracetamol and para-aminophenol

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Tadele, H. (2012). Simultaneous Determination of paracetamol and para -amino phenol using PEDOT Modified Glassy Carbon Electrode . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/515

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Tadele, Hunde. “Simultaneous Determination of paracetamol and para -amino phenol using PEDOT Modified Glassy Carbon Electrode .” 2012. Thesis, Addis Ababa University. Accessed July 22, 2019. http://etd.aau.edu.et/dspace/handle/123456789/515.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Tadele, Hunde. “Simultaneous Determination of paracetamol and para -amino phenol using PEDOT Modified Glassy Carbon Electrode .” 2012. Web. 22 Jul 2019.

Vancouver:

Tadele H. Simultaneous Determination of paracetamol and para -amino phenol using PEDOT Modified Glassy Carbon Electrode . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2019 Jul 22]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/515.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tadele H. Simultaneous Determination of paracetamol and para -amino phenol using PEDOT Modified Glassy Carbon Electrode . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/515

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Addis Ababa University

2. Wassie, Mersha. Optical and Metal Ion Sensing Properties of Electronically Conducting Monomers and Polymer .

Degree: 2012, Addis Ababa University

Herein, the optical metal ion sensing properties of monomers (M1 and M2) containing imidazole group as molecular recognition units and conjugated polymer (P1) carrying thiophine and thiazole in their backbone were studied. Absorption and fluorescence emission spectra of the materials considered were not significantly changed in different solvents. Sensing ability of the monomers and the polymer solutions to metal ions was carried out using fluorescence spectrometer. Both monomers were highly selective and sensitive optical chemosensor only to Fe3+ ion in THF, chloroform, and dioxane. The sensing principle was based on fluorescence quenching by forming complex between Fe3+ and imidazole group in the monomers backbone. The limit of detection values (LOD) for M1 and M2 in THF were 1.386x10-5 mol/L and 3.902x10-6 mol/L, respectively. Moreover, LOD values for M1 and M2 in chloroform obtained were 1.315x10-5 mol/L and 3.707x10-5 mol/L, respectively. The sensitivity of the monomers towards Fe3+ ion was compared by calculating Stern-Volumer constant (Ksv). The Ksv values found for M1 and M2 in THF were 6.474x102 M-1 and 1.495x103 M-1, respectively, and in chloroform the Ksv values obtained for M1 and M2 were 3.928x102 M-1 and 5.535x102 M-1, respectively. Results obtained showed that monomer M2 was more sensitive than M1 towards Fe3+ in all solvents considered. The fluorescence spectra of conjugated polymer P1 in THF, toluene, chloroform, and dioxane was insensitive to all metal ions considered. Advisors/Committee Members: Shimelis Admassie(Dr.) (advisor).

Subjects/Keywords: optical chemical sensor; molecular recognition; fluorescence quenching; Stern- Volumer constant.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Wassie, M. (2012). Optical and Metal Ion Sensing Properties of Electronically Conducting Monomers and Polymer . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/518

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Wassie, Mersha. “Optical and Metal Ion Sensing Properties of Electronically Conducting Monomers and Polymer .” 2012. Thesis, Addis Ababa University. Accessed July 22, 2019. http://etd.aau.edu.et/dspace/handle/123456789/518.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Wassie, Mersha. “Optical and Metal Ion Sensing Properties of Electronically Conducting Monomers and Polymer .” 2012. Web. 22 Jul 2019.

Vancouver:

Wassie M. Optical and Metal Ion Sensing Properties of Electronically Conducting Monomers and Polymer . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2019 Jul 22]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/518.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wassie M. Optical and Metal Ion Sensing Properties of Electronically Conducting Monomers and Polymer . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/518

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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