Determination by AAS of some trace heavy metal ions in some natural and biological samples after their preconcentration using newly chemically modified …

IMM Kenawy, MAH Hafez, MA Akl, RR Lashein - Analytical sciences, 2000 - jstage.jst.go.jp
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 …

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

ME Mahmoud, IMM Kenawy, MMAH Hafez… - Desalination, 2010 - Elsevier
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 …

Overview of analytical methodologies for sea water analysis: Part I—Metals

TP Rao, P Metilda, JM Gladis - Critical Reviews in Analytical …, 2005 - Taylor & Francis
A comprehensive, critical and up-to-date review of analytical methods developed during the
last decade for metals present in sea water is presented. Separate sections are devoted to …

Separation and preconcentration in a batch mode of Cd (II), Cr (III, VI), Cu (II), Mn (II, VII) and Pb (II) by solid-phase extraction by using of silica modified with N …

KS Abou-El-Sherbini, IMM Kenawy, MA Hamed… - Talanta, 2002 - Elsevier
The complexes formed between IE11 and Cd (II), Cr (III), Cu (II), Mn (II) and Pb (II) were
identified and confirmed by IR, UV and pH-metric titration. The uptake behavior of porous …

Flow injection methods of analysis for waters. I. Inorganic species

AF Dănet, M Cheregi, JM Calatayud… - Critical Reviews in …, 2001 - Taylor & Francis
A comprehensive, critical, and an updated review of the applications of flow-injection
analysis (FIA) techniques for the analysis of inorganic cations and anions in several types of …

Precipitation–dissolution system for silver preconcentration and determination by flow injection flame atomic absorption spectrometry

OD Sant'Ana, ALR Wagener, RE Santelli, RJ Cassella… - Talanta, 2002 - Elsevier
In this paper, flame atomic absorption spectrometry was used for the determination of silver
in various materials. The proposed preconcentration method is based on the continuous …

Column chromatographic separation of metal ions on 1‐(2‐pyridylazo)‐2‐napthol modified Amberlite IR‐120 resin

S Nabi, A Alim, A Islam, M Amjad - Journal of separation …, 2005 - Wiley Online Library
Cation exchange resin, Amberlite IR‐120, has been modified by the sorption of 1‐(2‐
pyridylazo)‐2‐napthol (PAN) at pH 6.0. The optimum conditions for the sorption of PAN on …

Chemical modification of chloromethylated polystyrene with pyridylazo‐β‐naphthol

MY Abdelaal, IMM Kenawy… - Journal of applied …, 2000 - Wiley Online Library
Chloromethylated polystyrene was chemically modified through alkylation of pyridylazo‐β‐
naphthol (PAN) in the presence of a phase‐transfer catalyst. The chemical modification was …

Atomic Spectrometry Update–Environmental analysis

JR Dean, O Butler, A Fisher, LM Garden… - Journal of Analytical …, 1998 - pubs.rsc.org
This is the thirteenth annual review published in JAAS of the applications of atomic
spectroscopy to the chemical analysis of environmental samples. The format used continues …

Selective flotation-separation and spectrophotometric determination of cadmium using phenanthraquinone monophenythiosemicarbazone

MA Akl, ME Khalifa, SE Ghazy, MM Hassanien - Analytical sciences, 2002 - jstage.jst.go.jp
The intense current interest in cadmium arises from its known toxicity. 1 The effects of acute
cadmium poisoning are manifested in a variety of different symptoms including high blood …