Nanoparticles (NPs) are objects of variable shapes with the dimensions in the range of units to hundreds of nanometers possessing unique physical and chemical properties [1, 2]. Typical features of NPs are a large surface-to-volume ratio and other fascinating properties derived from the “quantum size effect” [2]. NPs have significantly influenced many fields of science including analytical sepa...

A fast method for separation, preconcentration and determination of cadmium in drinking (source, well, tap) and water for irrigation is described. Iron(III) hexamethylenedithiocarbamate, Fe(HMDTC)3, has the role of colloid precipitate flotation collector. The determination of cadmium in final water solutions preconcentrated by flotation can be performed by flame (FAAS) or electrothermal atomic ...

The adsorption behavior of aluminium ions on chamotte clay has been studied in this study. Chamotte used for the first time determination trace levels aqueous solutions. Quantitative and recovery were both rapid reached an equilibrium 30 minutes. Aluminium was detected based formation highly fluorescent Al(III)-morin complex. Two linear calibration graphs obtained range 0.5-10 µg L-1 10-100 wit...

Over the last two decades, miniaturization, integration, and automation have made microfluidic systems popular. Core to advances in microfluidics are numerous electrophoretic separation and preconcentration strategies, some finding their origins on bench-top systems. Among them, gradient-based strategies are especially effective in addressing sensitivity challenges. This review introduces sever...

Analytical methods published in the last 20 years for the extraction, chromatographic separation, and quantification of alkylphenol ethoxylates (APEO) and related compounds in environmental samples are reviewed. Examples of various isolation and preconcentration techniques for water, effluent, sediment and sludge are presented. This includes procedures from the classical liquid-liquid and Soxhl...

Synthetic resin, Amberlite XAD-4 was linked covalently with the third generation supramolecule, octa-O-methoxy resorcin [4] arene through -N=Ngroup to form chelating resin, which has been characterized and effectively used for the separation and preconcentration of metal ions such as Ni(II), Cu(II), Zn(II) and Cd(II). Critical parameters such as pH, flow rate, sorption capacity, breakthrough st...

Tandem mass spectrometry coupled to HPLC is the state of the art technique in proteomic research. Here we describe a highly sensitive nano liquid chromatography system (nano HPLC) for analysis of protein digests. Using preconcentration in a column-switching set-up, we were able to inject large sample volumes (< or =250 microL) without significant loss of sensitivity. The major problem with this...