New potentiometric sensors for determination of lead in some environmental samples / Enas Elhassan Ebrahim Khodier ; Supervised Ahmed Fahmy A. Youssef

By:

Enas Elhassan Ebrahim Khodier

Contributor(s):

Ahmed Fahmy A. Youssef []

Material type: Text

TextLanguage: English Publication details: Cairo : Enas Elhassan Ebrahim Khodier , 2015Description: 154 P. : charts , facsimiles ; 25cmOther title:

محسنات جهدية جديدة لتقدير الرصاص فى بعض العينات البيئية [Added title page title]

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Issued also as CD

Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Analytical Chemistry Summary: This work has been carried out to present and characterize new chemically modified carbon paste electrodes (CMCPEs) which are based on recently synthesized two ion- associates including lead-diclofenac (Pb-DC) and lead-thiopental (Pb-THP), for determination of lead ions in some environmental samples. These samples were collected from different locations in Egypt, indoor samples including dust samples, respirable particulate matter (PM ) and even baby 10 toys of low quality (cheap toys and may be made of recyclable matter). The methods involved characterization of these electrodes in terms of slope, linear Nernstian range, detection limit, response time, usable pH range, working temperature range, life time when hanging the electrode in air. The effect of interfering ions was studied by applying matched potential method. Each electrode was applied for potentiometric determination of lead ions in pure solutions and the cited samples. The electrodes were successfully applied as indicator electrodes for potentiometric titration of lead with EDTA titrant. Surface characterization and surface morphology of the proposed CMCPEs was carried out using scanning electron microscope and energy dispersive X-ray (SEM-EDX)

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Item type	Current library	Home library	Call number	Copy number	Status	Date due	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.08.M.Sc.2015.En.N (Browse shelf(Opens below))		Not for loan		01010110069185000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.08.M.Sc.2015.En.N (Browse shelf(Opens below))	69185.CD	Not for loan		01020110069185000

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

This work has been carried out to present and characterize new chemically modified carbon paste electrodes (CMCPEs) which are based on recently synthesized two ion- associates including lead-diclofenac (Pb-DC) and lead-thiopental (Pb-THP), for determination of lead ions in some environmental samples. These samples were collected from different locations in Egypt, indoor samples including dust samples, respirable particulate matter (PM ) and even baby 10 toys of low quality (cheap toys and may be made of recyclable matter). The methods involved characterization of these electrodes in terms of slope, linear Nernstian range, detection limit, response time, usable pH range, working temperature range, life time when hanging the electrode in air. The effect of interfering ions was studied by applying matched potential method. Each electrode was applied for potentiometric determination of lead ions in pure solutions and the cited samples. The electrodes were successfully applied as indicator electrodes for potentiometric titration of lead with EDTA titrant. Surface characterization and surface morphology of the proposed CMCPEs was carried out using scanning electron microscope and energy dispersive X-ray (SEM-EDX)

Issued also as CD

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