Mehrorang Ghaedi talks with
ScienceWatch.com and answers a few questions about
this month's Fast Breaking Paper in the field of
Engineering.
Article Title: The determination of some heavy
metals in food samples by flame atomic absorption
spectrometry after their separation-preconcentration on bis
salicyl aldehyde, 1,3 propan diimine (BSPDI) loaded on
activated carbon
Authors: Ghaedi,
M;Shokrollahi, A;Kianfar, AH;Mirsadeghi,
AS;Pourfarokhi, A;Soylak, M
Journal: J HAZARD MATER, Volume: 154, Issue: 1-3, Page:
128-134, Year: JUN 15 2008
* Univ Yasuj, Dept Chem, Yasuj 75914353, Iran.
* Univ Yasuj, Dept Chem, Yasuj 75914353, Iran.
* Erciyes Univ, Dept Chem, TR-38039 Kayseri, Turkey.
Why do you think your paper is highly
cited?
It describes a very efficient method for preconcentration of trace
quantities of heavy metals.
Would you summarize the significance of your paper in
layman's terms?
This sensitive and simple method for the simultaneous preconcentration of
Cr3+, Fe3+, Cu2+, Ni2+, Co2+,
and Zn2+ in real samples is based on the adsorption of analytes
on bis salicyl aldehyde, 1,3 propan diimine (BSPDI) loaded on activated
carbon. The adsorbed metals on modified activated carbon were eluted using
8 mL of 2 mol L-1 HNO3 in acetone or 10 mL of 4 mol L-1
HNO3.
The influences of the analytical parameters, including pH and sample
volume, were investigated. The effects of matrix ions on the retentions of
analytes were also examined. The recoveries of analytes were generally
quantitative. The method has been successfully applied for these metals
content evaluation in some food samples.
How did you become involved in this research, and were
there any problems along the way?
It was during my Ph.D. research when I began working in this field. There
were some problems, such as the preparation of ligands and repeatable solid
phases, which were overcome.
Where do you see your research leading in the
future?
This method has been successfully applied for these metals' content
evaluation in some food samples. The proposed method can be applied on a
number of environmental and biological samples.
Mehrorang Ghaedi, Ph.D.
Associate Professor of Analytical Chemistry
Department of Chemistry
Yasouj University
Yasouj, Iran
KEYWORDS: SOLID-PHASE EXTRACTION; TABLE SALT SAMPLES; BLACK-SEA
REGION; SILICA-GEL; SELECTIVE PRECONCENTRATION; WATER SAMPLES; TRACE
AMOUNTS; COPPER; NICKEL; IONS.