Výsledky vyhledávání - "R. R. Lashein"

Removal, preconcentration and determination of trace heavy metal ions in water samples by AAS via chemically modified silica gel N-(1-carboxy-6-hydroxy) benzylidenepropylamine ion exchanger

Autor: R. R. Lashein, Ibrahim M.M. Kenawy, Mohamed E. Mahmoud, M. M. A. H. Hafez

Publikováno v: Desalination. 250:62-70

The use of chemically modified silica gel N-(1-carboxy-6-hydroxy) benzylidenepropylamine (SiG-CHBPA), ion exchanger for removal and preconcentration of Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd and Pb in natural water samples collected from River Nile, Mediterr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::79d4aa53818f2392fa5a4372f4421912
https://doi.org/10.1016/j.desal.2009.09.009

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Preconcentration and separation of total mercury in environmental samples using chemically modified chloromethylated polystyrene-PAN (ion-exchanger) and its determination by cold vapour atomic absorption spectrometry

Autor: R. R. Lashein, Magda A. Akl, M. A. H. Hafez, Ibrahim M.M. Kenawy

Publikováno v: Talanta. 53:749-760

The use of chemically modified chloromethylated polystyrene-PAN, CMPS-PAN (ion-exchanger) for the preconcentration and separation of total mercury after digestion in preparation for determination by cold vapour atomic absorption spectrometry (CVAAS)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eef53245877b1fe4be9962a163c535b
https://doi.org/10.1016/s0039-9140(00)00524-5

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[Untitled]

Autor: R. R. Lashein, M. A. H. Hafez, Ibrahim M.M. Kenawy

Publikováno v: Journal of Thermal Analysis and Calorimetry. 65:723-736

The complexes formed by the chemically modified chloromethylated poly(styrene)-PAN (CMPS-PAN) as a resin chelating ion exchanger were characterized by infrared and potentiometry. The thermal degradation of pure CMPS-PAN resin and its complexes with A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70293f5efa9264f252c8c421cebae60b
https://doi.org/10.1023/a:1011999325998

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Determination by AAS of some trace heavy metal ions in some natural and biological samples after their preconcentration using newly chemically modified chloromethylated polystyrene-PAN ion-exchanger

Autor: R. R. Lashein, Magda A. Akl, Ibrahim M.M. Kenawy, M. A. H. Hafez

Publikováno v: Scopus-Elsevier

The use of chemically modified chloromethylated polystyrene-PAN, CMPS-PAN ion-exchanger for the separation of Au(III), Cd(II), Co(II), Cr(III), Cu(II), Fe(III), Mn(II), Ni(II), Pb(II), Pd(II) and Zn(II) from aqueous solution is described. After preco

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cff6be199e6eaf138640014a582d037
http://www.scopus.com/inward/record.url?eid=2-s2.0-0033855165&partnerID=MN8TOARS

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