Even though instrumental advancements are constantly being made in analytical chemistry,
sample preparation is still considered the bottleneck of analytical methods. To this end …

This work presents a detailed study about the adsorption of Methylene Blue (MB) onto
polyether type polyurethane foam (PUF). The adsorption process is based on the formation …

In this work, an extraction and preconcentration method based on dispersive liquid–liquid
microextraction (DLLME) for Cu determination in beer by flame atomic absorption …

This paper reports the development of a new strategy for low-level determination of copper
in water samples by using a flow-injection system coupled to solid-phase extraction (SPE) …

In this work, the application of dispersive liquid–liquid microextraction (DLLME) for the
extraction and preconcentration of Cd and Pb in honey and subsequent determination by …

The present paper proposes an on-line pre-concentration procedure for lead determination
in drinking water and saline waste from oil refinery by flame atomic absorption spectrometry …

The ability of solid N-propyl quaternized magnetic poly (4-vinylpyridine) for the extraction of
chromium (VI) in aqueous solutions was investigated. For the synthesized Cr (VI) magnetic …

A spectrophotometric procedure for the simultaneous determination of zinc (II) and copper
(II) in a mixture using diethyldithiocarbamate (DDTC) as ligand has been described …

This work reports a study about the adsorption of the herbicides diquat and difenzoquat from
aqueous medium employing polyurethane foam (PUF) as the adsorbent and sodium …

Carboxylated multi-wall carbon nanotube (c-MWCNT)-Fe 3 O 4 magnetic hybrids (c-
MWCNTMCs) were prepared by mixing FeCl 3· 6H 2 O, sodium acetate, ethylene glycol and …