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Define Ion exchange chromatography?
In this method a reversible exchange of ions is effected. Usually resins and ionic solutes are the two components involved in ion-exchange. Ion exchange resins are of two types cation and anion exchange resins. The acidic or cation exchange resins contain sulfonic acid groups (SO3H), carboxylic groups (COOH) or phenol groups (OH).
Basic or anion exchange resins contain weakly basic amine groups (NH2) or strongly basic quarternary ammonium groups (NH4)+ OH-. The surfaces of acid resins bind cations such as H, Na+, Ca2+, NH4+. The basic or anion exchange resins carry positive charges on the surface and thus adsorb negative ions.
Foliose Lichen Stage - Xerarch As mentioned earlier, the weathering of the rocks and the decaying of the crustose lichens results in the formation of soil on the otherwise bar
What is Metabolism ? Metabolism is usually defined as the sum of the chemical processes required to sustain life. These processes, called metabolic pathways, are catalyzed by
Measles: The causative organism for measles is paramyxovirus. Disease spreading takes place through the nasal discharge and saliva of persons affected with measles by dro
Explain the Properties gum karaya Gum karaya is water-swellable rather than water-soluble and absorbs water very rapidly to form viscous colloidal dispersions at low concentra
Classification of Freshwater Ecosystems Fresh water ecosystems depend on the terrestrial ecosystems for large quantities of organic and inorganic matter which are constantly a
Some observations seen in this fever are: 1. Massive loss of lean body mass or muscle due to tissue breakdown (250-500 g muscle tissue is lost/day) leading to excessive nitro
Factors that affects Oxygen Dissociation Curves - Temperature At higher temperature haemoglobin gives up oxygen more readily and the dissociation curve shifts to the right. Th
Congenital Syphilis A positive serological test for syphilis in a newborn without stigmata of syphilis may be due either to passive transfer of maternal antibodies or to prena
A simple method used to identify areas of high conservation priority is the selection of countries according to highest species richness. Among the top 12 countries identified this
pour plate method
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