Conclusion The use of SPE procedures has been growing in the past few years due to their
advantages offered for trace element determinations, namely conservation of species, good …

The presence of uranium in soil and underground water generate an important issue against
public perception on the risk, which the contamination poses to the environmental and …

Increased utilization of mechanically stable synthetic matrices particularly silica gel as a
solid support and its surface modification either by impregnation of organic ligands directly …

Interference of organic compounds in the matrix of heavy metal solution could suppress their
pre-concentration and detection processes. Therefore, this work aimed to develop simple …

The immobilization of gallic acid on the surface of amino group-containing silica gel phases
for the formation of a newly chelating matrix (GASG) is described. The newly synthesized …

Silica gel chemically bonded with aminothioamidoanthraquinone was synthesized and
characterized. The metal sorption properties of modified silica were studied towards Pb (II) …

Simple, sensitive, and economical methods for the determination and solid phase extraction
of metal ions using chelating resins in the past 25 years have been surveyed. Chelates …

Two silica gel phases loaded with dithizone were synthesized based on chemical binding
and physical adsorption approaches. The stability of a chemically modified dithizone phase …

The demand for the recovery of valuable metals and the need to understand the impact of
heavy metals in the environment on human and aquatic life has led to the development of …

A method is described for the selective extraction of mercury (II) from aqueous solutions as
well as natural water samples, based on the use of four newly synthesized solid phase …