Oxide aerogels are pore–solid networks notable for their low density, large pore volume, and high surface area. This three-dimensional arrangement of solid provides critical properties: the area required to maximize number active sites a through-connected porosity that plumbs reactants interior. In decontamination applications where reactivity beyond adsorption is desired degrade deleterious mo...

Herein, a fabric phase sorptive extraction-based scheme was reported for the determination of amphotericin B in human urine. The developed method allowed direct extraction analyte from biological matrix with improved selectivity, repeatability and recovery. Due to membrane’s engineered affinity towards analyte, equilibrium achieved 30 min. Moreover, no additional sample pretreatment required du...

Excessive concentrations of heavy metals in food we eat are among the current issues safety. This becomes especially evident if consider highly toxic elements such as copper, lead and cadmium. With regard to foregoing, it would be helpful get information about use novel sorbents livestock farming their effects on distribution animal bodies. The drug study is based natural mineral raw materials ...

Simultaneous extraction of the morpholino dithiocarbamate (MDTC) chelates of Cr(III) and Cr(VI) ion from aqueous samples was accomplished by applying fabric phase sorptive extraction (FPSE) using a cellulose fabric modified with a sol-gel/polytetrahydrofuran composite. Following extraction, the chelates were separated by HPLC on a reverse phase C18 column with acetonitrile:water (65:35; v/v) as...

A study was made of the hygroscopicity of two samples of cork with the same characteristics, taken from trees of the same age but with a 38year gap between debarking. This was achieved by plotting the 35oC sorption-desorption isotherms and fitting them using the GAB model. Infrared spectra were used to determine any chemical changes in the cell wall. Extended exposure to controlled relative hum...

Accurate identiication of interactions of reactive solutes with porous media constituents is necessary for reliable risk assessment studies and the development of eecient sanitation strategies. Standard parameter estimation procedures bear a number of unsolved problems with respect to uniqueness and identiiability. This paper presents a new approach for the identiication of nonlinear interactio...

Extruded polystyrene (XPS) is often treated with hexabromocyclododecane (HBCD) as fire retardant (FR). Because of its aliphatic structure, HBCD is not suspected to cause formation of polybrominated dioxins upon combustion. Precursors of polybrominated dioxins, namely bromophenols, were detected during tubular furnace combustion experiments of FR-XPS in combination with sorptive enrichment on po...

several factors effect on sorption of polycyclic aromatic hydrocarbons (pahs) in soil. co-existence of metals and organic matter of soil are among important affecting factors on sorptive behavior of pahs. this research investigated the effect of organic matter content and heavy metals (lead, nickel and zinc), on sorption of phenanthrene onto kaolinite. for this purpose, sorption of the organic ...

Magnetic nanopowders were developed by functionalization of bimagnetic core@shell nanoparticles with cysteine (CoFe2O4@ɣ-Fe2O3@Cys), which present a core high saturation magnetization (CoFe2O4) combined shell long-term chemical stability (ɣ-Fe2O3) and sorptive L-cysteine layer. Samples two different mean sizes elaborated characterized XRD, TEM, FTIR, SER, zetametry SQUID magnetometry. The adsor...