a headspace-solid phase microextraction (hs-spme) and gas chromatography-mass spectrometry (gc-ms) method has been developed for the simultaneously determination of 20 disinfection by-products (dbps) in water samples from reverse osmosis (ro) membranes. selected compounds belong to different families including: trihalomethanes (thms), halogenated acetonitriles (hans), halogenated nitromethanes ...

Introduction Chromatography is an effective and very useful method for separation and purification of organic compounds that can be used even for complex mixtures. Chromatography separates components of a mixture based upon how well they are adsorbed on an inert phase (the stationary phase) versus how well they dissolve in a liquid phase (the mobile phase) (Figure 1). A mixture is introduced t...

Introduction Chromatography is an effective and very useful method for separation and purification of organic compounds that can be used even for complex mixtures. Chromatography separates components of a mixture based upon how well they are adsorbed on an inert phase (the stationary phase) versus how well they dissolve in a liquid phase (the mobile phase) (Figure 1). A mixture is introduced t...

Abstract The application of temperature gradient interaction chromatography (TGIC) as an advanced technique for the characterisation polymers is discussed, in comparison to other liquid techniques and particular ubiquitous size exclusion chromatography. Specifically, use reversed-phase TGIC interrogation complex branched normal-phase high-molar mass end-functionalised highlighted.