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Determination of some metal ions using carbon paste electrodes / Heba Aly Mohammad Marzouk ; Supervised Eman Yossri Frag , Marwa Elbadry Mohamed

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Heba Aly Mohammad Marzouk , 2021Description: 72 P. : charts , facimiles ; 25cmOther title:
  • تتقدير بعض أيونات العناصر بإستخدام أقطاب عجينة الكربون [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Analytical Chemistry Summary: In this paper, an effective, selective, and inexpensive Cr(III) ions modified carbon paste electrode (MCPE) based on benazepril (BNZ) was developed and described. It shows a good Nernstian slope of 19.20 + 0.39 mV decade-1 over a wide linear range of 8.0 {u00D7} 10-6{u2013} 1.0 {u00D7} 10-1 mol L-1 with a fast response time (10 s) and can be applied for measurements for at least 54 days with negligible change in results. The proposed sensor was pH-Independent in the range of 2.5{u2013}6.5 and showed an excellent selectivity towards Cr(III) ions over many other cations. The Cr(III)-BNZ surface interaction was investigated by using the energy dispersive X-ray analysis (EDX) and a scanning electron microscope (SEM). The proposed MCPE was completely validated according to the EURACHEM guidelines. Lastly, the proposed electrode efficiency for trace amount determination of Cr(III) ions in various food samples was examined, and the obtained results were compared with the results of the inductively coupled plasma-optical emission spectroscopy (ICP-OES)
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.08.M.Sc.2021.He.D (Browse shelf(Opens below)) Not for loan 01010110083999000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.08.M.Sc.2021.He.D (Browse shelf(Opens below)) 83999.CD Not for loan 01020110083999000

Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Analytical Chemistry

In this paper, an effective, selective, and inexpensive Cr(III) ions modified carbon paste electrode (MCPE) based on benazepril (BNZ) was developed and described. It shows a good Nernstian slope of 19.20 + 0.39 mV decade-1 over a wide linear range of 8.0 {u00D7} 10-6{u2013} 1.0 {u00D7} 10-1 mol L-1 with a fast response time (10 s) and can be applied for measurements for at least 54 days with negligible change in results. The proposed sensor was pH-Independent in the range of 2.5{u2013}6.5 and showed an excellent selectivity towards Cr(III) ions over many other cations. The Cr(III)-BNZ surface interaction was investigated by using the energy dispersive X-ray analysis (EDX) and a scanning electron microscope (SEM). The proposed MCPE was completely validated according to the EURACHEM guidelines. Lastly, the proposed electrode efficiency for trace amount determination of Cr(III) ions in various food samples was examined, and the obtained results were compared with the results of the inductively coupled plasma-optical emission spectroscopy (ICP-OES)

Issued also as CD

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