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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.
What is Archaebacteria ? Archaebacteria is a relatively new grouping that was created in the light of relatively recent biochemical and electron microscopic evidence. These fin
This innovative, pacemaker-based approach to the treatment of patients with heart failure who have a wide QRS complex (>140 ms) on 12-lead ECG aims at providing electromechanical c
Uterine Torsion Incidences of uterine torsions in cattle and buffaloes are not common. However, they are very common in heavy breeds and buffaloes and animals in slopy terrain
Coelenterata – General characters and classification.
Define Primary motor cortex corticospinal interneuron A Primary motor cortex (M1) corticospinal interneuron A that produces action potentials during movements of the big toe of
What is the primary structure of a protein? What is the importance of the primary structure? Ans) The primary protein structure is the linear sequence of amino acids that produc
Patient is a 7-year-old girl who was brought to her physician by her mother with complaints of general fatigue, anorexia, and unexplained bruises and "rash" for the past 2 weeks. C
The cytoskeleton is a network of very little tubules and filaments spread throughout the cytoplasm of eukaryotic cells. It is made of microtubules, microfilaments and intermediate
Protozoan phyla
SOIL GENESIS Soil a product of evolution, is constantly changing as the landscape changes. It is a product of the interaction of five factors: parent material, climate, organis
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