Sorptive separations

Chromatography Chromatography is a sorptive separation technique that allows multicomponent separations in both gas and Hquid phase. As a preparative tool, it is often used as a displacement-purge process, although many applications employ an inert-displacement mode, especially for use in analysis. General characteristics and operating modes are discussed in a separate part of this section. 

Chromatography Chromatography is a sorptive separation technique that allows multicomponent separations in both gas and liquid... 

Technical opportunities for sorptive separation of H2O, CO2, H2S and organic sulphur compoimds from natural gas were considered originally by the Linde Corp. in 1957 [31]. The first plant for drying and sweetening of gases by means of... 

This term is analogous to relative volatility or its reciprocal (or to an equilibrium selectivity). Similarly, the assumption of a constant separation factor is a useful assumption in many sorptive operations. [It is constant for the Langmuir isotherm, as described below, and for mass-action equilibrium with za = zh in Eq. (16-24).] This gives the constant separation factor isotherm... 

Besides classical headspace analysis, simultaneous distillation-extraction and solvent extraction, new sampling and enrichment developments include solvent-assisted flavour evaporation (SAFE) [3] and sorptive techniques like SPME solid-phase microextraction (SPME) [4,5] and stir-bar sorptive extraction (SBSE) [6], which are treated in a dedicated chapter in this book. This contribution will deal with advanced developments of GC techniques for improvement of separation and identification (classical multidimensional GC, or... 

Fig. 17.10 Stir-bar sorptive extraction-enantio-MDGC-MS analysis of tea tree oil, main column separation [45]...

An isolation-fractionation scheme for the separation of trace organic solutes from natural and drinking waters has been developed. This process involves the separation of a number of organic solutes into several fractions on the basis of their sorptive characteristics onto different adsorbents under varying pH conditions. The specific adsor-... 

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