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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.
Define the Standard Deviation (2 score) classification? Statistics teaches us that when normal values of any variable are distributed as per their frequency of occurrence, they
The genetically-modified (GM) brinjal in India has been developed for: 1. Insect-resistance 2. Enhancing shelf life 3. Enhancing mineral content 4. Drought-resistance
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Evaluate the Moisture Requirement - The Concept of Water Activity We already know that moisture is one of the important factors for the survival of living species. As suc
If the cans of regular soda are made with aluminium than diet soda, then regular soda will sink. Write brief descriptions of how you could test this hypothesis.
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advantage sand disadvantages of protozoa
The heart is drained by vessels that travel in the interventricular and atrioventricular grooves. One set runs in the anterior part of the atrio-ventricular groove. The vessels of
what is diffusion
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