TY  - BOOK
AU  - Enas Elhassan Ebrahim Khodier 
AU  - Ahmed Fahmy A. Youssef  , 
TI  - New potentiometric sensors for determination of lead in some environmental samples / 
PY  - 2015///
CY  - Cairo : 
PB  - Enas Elhassan Ebrahim Khodier  , 
KW  - Chemically modified carbon paste electrode (CMCPE)
KW  - ISE
KW  - Lead ions
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Analytical Chemistry; Issued also as CD
N2  - 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)
ER  -