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The Application of Cryptand 22 as a Bifunctional Stationary Phase for Ion Chromatography
Author(s) -
Chen SihJen,
Shih JengShong
Publication year - 1991
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199100036
Subject(s) - chemistry , cryptand , bifunctional , protonation , deprotonation , column chromatography , alkali metal , inorganic chemistry , ion exchange , ion chromatography , elution , ion , organic chemistry , chromatography , catalysis
Poly (styrene/divinyl benzene) with cryptand 22 as an anchoring group was synthesized and applied as a bifunctional packing material for the separation of both cations and anions. At pH < 2, the resin can be protonated and applied as an anion exchanger for the separation of anions; with water as eluent, inorganic anions such as F − , Cl − , Br − , NO 3 − ”, I − were well separated. After deprotonation at pH> 10, the resin became a cation exchanger and successfully separated alkali metal ions such as Li + , K + and Cs + with methanol as eluent. The effects of solvents, flow rate and temperature on the separation of various ions were also investigated.