Yazan Abbassi
Ion exchange resins are polymers that are capable of exchanging particular ions within the
polymer with ions in a solution that is passed through them. This ability is also seen in
various natural systems such as soils and living cells. The synthetic resins are used
primarily for purifying water, but also for various other applications including separating
out some elements.
In water purification the aim is usually either to soften the water or to remove the mineral
content altogether. The water is softened by using a resin containing Na+ cations but
which binds Ca2+ and Mg2+ more strongly than Na+. As the water passes through the resin
the resin takes up Ca2+ and Mg2+ and releases Na+ making for a 'softer' water. If the water
needs to have the mineral content entirely removed it is passed through a resin containing
H+ (which replaces all the cations) and then through a second resin containing OH- (which
replaces all the anions). The H+ and OH- then react together to give more water.
The process has some disadvantages in that there are substances occurring in some water
(such as organic matter or Fe3+ ions) which can foul the resin, but in general the
advantages of the process (long life of resins, cheap maintainance etc.) outweigh the
disadvantages. In addition, the process is very environmentally friendly because it deals
only with substances already occurring in water.
A zeolite is any of several minerals which have a porous structure, such as aluminosilicates of sodium, potassium, calcium or magnesium, which are used in water softeners and ion exchange chromatography.
In ion chromatography, "prime" typically refers to the process of preparing and conditioning the ion exchange column to ensure optimal performance. This involves flushing the column with a suitable eluent to remove impurities and equilibrate the stationary phase before sample analysis. Proper priming enhances resolution and sensitivity, allowing for accurate separation and quantification of ions in the sample.
Chromatography separates chemicals based on their affinity for a stationary phase and a mobile phase, allowing them to travel at different rates. Different types of chromatography like gas chromatography, liquid chromatography, and thin-layer chromatography utilize different mechanisms such as adsorption, partition, ion exchange, and size exclusion to separate the components in a mixture. By adjusting the conditions like solvent polarity, temperature, and column material, chromatography can effectively separate complex mixtures into individual components.
there are different types like gas chrom. and thinlayer chrom Answer: There are two types of chromatography:liquid chromatography gas chromatography
Size exclusion chromatography would be ideal for separating two proteins based on their size. This technique separates proteins by allowing smaller proteins to enter the pores of the stationary phase while larger proteins elute first.
Yes they are the same
Anion exchange chromatography and cation exchange chromatography are both types of ion exchange chromatography used to separate molecules based on their charge. The key difference between them is the type of ions they attract and retain. Anion exchange chromatography attracts and retains negatively charged ions (anions), while cation exchange chromatography attracts and retains positively charged ions (cations).
Examples: distillation, ion-exchange, chromatography, decantation, extraction.
Joseph X. Khym has written: 'Analytical ion-exchange procedures in chemistry and biology: theory, equipment, techniques' -- subject(s): Ion exchange, Ion exchange chromatography
Douglas T. Gjerde has written: 'Ion chromatography' -- subject(s): Ion exchange chromatography 'DNA chromatography' -- subject(s): Analysis, Chromatographic analysis, DNA, Genetic Techniques, High Pressure Liquid Chromatography, Isolation & purification
Shahab A Shamsi has written: 'Reversed phase /ion chromatography and capillary electrophoresis of ionic compounds with indirect detection' -- subject(s): Chemistry, Ion exchange chromatography, Capillary electrophoresis
T. R Acciani has written: 'Chemical analysis of wet scrubbers utilizing ion chromatography' -- subject(s): Analysis, Ion exchange chromatography, Scrubber (Chemical technology)
Single column depends upon small differences in conductivity between sample ions and elutent ions. Suppressor based ion exchange has a second ion exchange column, (suppressor) after the original ion exchanger that converts ions to a limited charged product.
Examples are: distillation, decantation, centrifugation, filtration, chromatography, ion exchange, etc.
R. T. Allsop has written: 'Chemical analysis, chromatography, and ion exchange' 'Chemicals and where they come from'
Anion exchange chromatography separates molecules based on their negative charge, while cation exchange chromatography separates molecules based on their positive charge.
Cation exchange chromatography separates molecules based on their positive charge, while anion exchange chromatography separates molecules based on their negative charge.