Preconcentration–separation of Co2+, Ni2+, Cu2+ and Cd2+ in real samples by solid phase extraction of a calix[4] resorcinarene modified Amberlite XAD-16 resin

Chemical modification of Amberlite XAD-4 by carbonyl groups for phenol adsorption from wastewater

“…However, the polystyrene matrix of XAD-4 is highly hydrophobic, making it very difficult in contacting with aqueous solutions, inducing a relatively smaller adsorption capacity towards hydrophilic organic compounds from aqueous solutions. In order to improve the adsorption of macroporous polymeric adsorbents for hydrophilic organic compounds, chemical modification is a typical method and it is often adopted by introducing some special functional groups on the matrix of the adsorbent [19][20][21][22]. These added functional groups modify the chemical composition of the adsorbent surface and hence improve the adsorption behaviors [23][24][25].…”

Applications of Amberlite XAD based Chelating resins in Online Pre concentration of metal ions

“…Amberlite XAD-2 loaded resins [15][16][17] have low surface area as compared to Amberlite XAD-16. Modified Amberlite XAD16 resin [18][19][20][21][22][23][24] shows good sorption capacity and higher preconcentration factor because of large surface area and these resins can be reused for many cycles of sorption desorption without any significant change (<2%) in its sorption capacity. However, the main problem with this technique is its low sensitivity for trace metals even at mgL -1 level, use of manual devices, more reagent consumption and time consuming.…”

Amberlite IR-120 Modified with 8-Hydroxyquinoline as Efficient Adsorbent for Solid-Phase Extraction and Flame Atomic Absorption Determination of Trace Amounts of Some Metal Ions

“…Various solid-phase extraction materials including Sepabeads SP70 [17], Diaion HP-2MG [18], cellulose [19], activated carbon [3,20], Lewatit S 100 [21], polyurethane foam [22], Chelex 100 [23], microcrystalline naphthalene [24], Amberlite XAD-2000 [25], sodium dodecyl sulfatecoated alumina [26], and Amberlite XAD-16 resin [27] have been used.…”