Comparison of porous copolymers and related adsorbents for the stripping of low molecular weight compounds from a flowing air stream

Literature Review and Evaluation of Solid Sorbents for Water Sampling of Explosives

“…The acrylic esters were more efficient than either anion exchange resins or activated carbons. Sydor and Pietrzyk (1978) found that Amberlite XAD-7 had a higher sorbent capacity than XAD-2 for removal of low molecular weight compounds from an air stream. Sorption data on acrylic esters are summarized in Table VII. C.…”

“…Amberlite XAD-8 Tenax GC is a low capacity sorbent (Sydor and Pietrzyk, 1978). The surface area of the polymer is 19 m 2 /g (Butler and Burke, 1976), and the sorbent contains pores varying from 30 A to 10,000 A (Sakodynskii et al, 1974).…”

Impact of volatiles on flavor of fresh and stored soybean oils

“…The adsorbed compounds can be desorbed by either thermal desorption (43) or solvent extraction (44). Table 1 shows comparisons of adsorbents in surface area and capacity (45). Although Tenax has a poor adsorption capacity which easily results in "breakthrough", it still is widely used because of analyzed the headspace volatiles of roasted peanuts by using Tenax adsorption.…”

Functional properties of food and non-food soy protein-based products

“…Charcoal ( coconut carbon) strongly adsorbs nonpolar compounds but weakly adsorbs polar compounds such as water molecules. The surface area of the absorbent is 1150-1250 m 2 g (44). It has a very large adsorption capacity if compare to other synthetic polymers.…”

“…It has a very large adsorption capacity if compare to other synthetic polymers. For example, Porapak Q that is made from ethyl vinyl benzene-divinyl benzene, retained less ethanol than charcoal (44). Porapak Q has a surface area of 550-650 m 2 g. The disadvantage of using charcoal as an absorbent is the impure carbon could produce artifacts during the thermal desorption of the analysis (41,43).…”