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 …

An overview is presented dealing with the use of pure, chemically modified, and sol‐gel‐
derived silicates for designing electrode materials that are then exploited in various …

Abstract Six new 1-benzoyl-3-phenylthiourea and 1-benzoyl-3-(2-methylphenyl) thiourea
complexes of mercury (II) were obtained in the reactions of the ligands with HgX 2 in …

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 …

Natural clinoptilolite tuff was mechanically converted to micro (MCP) and nano (NCP)
particles. The MCP and NCP powders were respectively modified with hexadecyltrimethyl …

A simple and selective method based on a sodium dodecyl sulfate (SDS)–coated
chromosorb P modified by 2‐mercaptobenzoxazole (MBO) has been developed to …

A sensitive and simple method for the simultaneous preconcentration of Cr3+, Fe3+, Cu2+,
Ni2+, Co2+ and Zn2+ in real samples has been reported. The method is based on the …

A novel solid phase extraction method for the determination of mercury has been developed.
The Hg (II) ions were retained on a mini-column packed with agar powder modified with 2 …

Adsorption of Hg (II) ions onto selective adsorbent of dithizone-immobilized natural zeolite
(DIZ) from Wonosari, Yogyakarta, Indonesia has been investigated in batch mode. Some …

The speed at which selected reactants are reaching active sites grafted on porous silica gels
of various nature and porosity was evaluated using some model systems: protonation of …