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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.
Gastro Epiploic artery GEA is seldom used now. Patency has been reported as 94 per cent at one year, 88 per cent at five years and 83 per cell1 at ten years. Inferior Epiga
Role of citrate Citrate in addition to being an intermediate of citric acid cycle provides a source of acetyl CoA for the cytosolic synthesis of fatty acids. Citrate inhi
Chromosomes are the condensed, fibrillar, self- replicating genetic structures of cells containing the cellular DNA which bears in its nucleotide sequence the linear array of gene
characteristics of leucosolenia?
i need help with to do a pedigree charts.
Flagellates - Parasitic Protozoan Several flagellate protozoa parasitise man and live in the blood stream or tissues of the reticulo-endothelial system. Most significant of th
Goat pox Goat-pox is common in occurrence, and its nature is similar to sheep pox. The incubation period varies from 5 to 10 days. The disease tends to attack male kids and ewe
Alterations occuring in cereal & cereal products, legumes You are already aware of the chemical composition of cereals and pulses. We will now look into changes occurring in t
How do plants solve the problem of transporting substances throughout their tissues? In bryophytes the substance transport is completed by diffusion. In tracheophytes (pteridop
Class of Crustacea - Branchiura Branchiura involves only around 130 species of ectoparasitic crustaceans living mostly on the integument and gill cavities of freshwater and ma
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