background: in this study we have prepared the iga solution from normal human plasma using plasma fractionation and ion exchange chromatography. materials and methods: using fractionation of plasma with cold ethanol (starting with 8% ethanol), fraction iii was prepared as a suitable source for iga preparation. then it was treated with caprylic acid for separation of impurities. for enrichment o...

By combining a multiple micron-gap ion separator with a novel high-frequency separation waveform drive topology, it has been possible to considerably extend the separation field limits employed in Field Asymmetric Ion Mobility Spectrometry (FAIMS)/Differential Mobility Spectrometry (DMS); giving rise to an Ultra-High-Field operational domain. A miniature spectrometer, based around the multi-mic...

in this article, preparation of polypyrrole and its nanocomposites as adsorbents werediscussed and the capability of separation of copper ions from aqueous solution were studied.polypyrrole was prepared by chemical oxidative polymerization method of pyrrole usingfecl3 as an oxidant. the removal of cu (ii) was investigated using ppy, ppy/tio2 andppy/tio2/dhsna nanocomposites. the products were i...

Electrokinetic transport in fluidic channels facilitates control and separation of ionic species. In nanometer-scale electrokinetic systems, the electric double layer thickness is comparable to characteristic channel dimensions, and this results in nonuniform velocity profiles and strong electric fields transverse to the flow. In such channels, streamwise and transverse electromigration fluxes ...