Spectrophotometric Determination of Iron(II) by Using Chitosan Coprecipitation with 1,10-phenanthroline and Tetrabromophenolphthalein Ethyl Ester

Adsorption Behavior of Cationic and Anionic Species on Chitosan Resins Possessing Amino Acid Moieties

“…Some researchers have applied chitosan to the separation and concentration of trace elements in water samples prior to trace analysis. [5][6][7][8][9][10][11][12][13][14][15][16][17][18] Chitosan as a base material for the development of a chelating resin and an ion-exchange resin is of great interest due to its advantages, such as easy derivatization of its amino group, and being more hydrophilic than synthetic base materials, like polystyrene-divinylbenzene, polyethylene, and polyurethane, which provides a fast sorption kinetic of ionic species in aquatic media. 8 Therefore, novel chitosan resins possessing chelating moieties have been developed by using a cross-linked chitosan resin as a base material.…”

Adsorption Properties of Ionic Species on Cross-linked Chitosans Modified with Catechol and Salicylic Acid Moieties

“…1 Some researchers have applied chitosan to the collection of trace elements in water samples prior to trace analysis. [2][3][4] In order to develop high-performance chitosan resins for the pretreatment of water samples, many researchers have discussed the adsorption properties of cationic species, such as heavy metals and lanthanoids on chitosan resins modified with chelating moieties, such as iminodiacetic acid (IDA) group, ethylenediaminetetraacetic acid (EDTA) group, diethylenetriaminepentaacetic acid (DTPA) group, methylthiocarbamoyl group, phenylthiocarbamoyl group, 2-pyridylmethyl group, 2-thienylmethyl group, and 3-(methylthio)propyl group. [5][6][7][8][9][10] In order to elucidate the adsorption properties, we must systematically examine the adsorption behavior of several similar elements at various pH conditions.…”