ion-exclusion chromatography

[′ī‚än iks‚klü·zhən ‚krō·mə′täg·rə·fē]

(analytical chemistry)

Chromatography in which the adsorbent material is saturated with the same mobile ions (cationic or anionic) as are present in the sample-carrying eluent (solvent), thus repelling the similar sample ions.

References in periodicals archive ?

The topics include a new perspective on retention processes in ion-exclusion chromatography, the ion chromatography analysis of aminoglycoside antibiotics, analyzing pharmaceuticals for authenticity and adulteration, two-dimensional ion chromatography for simultaneously determining amino acids and carbohydrates, and analyzing biological products.

Applications of ion chromatography for pharmaceutical and biological products. (website access included)

Producers like to use the ion-exclusion chromatography method because it monitors carbohydrate size and ethanol.

Biofuel watchdog: a surprising new application for a traditional HPLC column has created a new market segment for the separations industry

Ion-exclusion chromatography combined with ICP-MS and hydride generation ICP-MS for the determination of arsenic species in biological matrices.

Development and application of a robust speciation method for determination of six arsenic compounds present in human urine. (Research)