Define adsorption chromatography -basic separation technique, Biology

Assignment Help:

Define Adsorption chromatography - Basic Separation Technique?

Adsorption is surface interaction and is by number of forces, between surface atoms of solids and molecules of external solute. Adsorption chromatography comprises of systems where active absorption occurs at the surface of the solid stationary medium, often alumina or silica gel. Competition for adsorptive sites occurs between the molecules of the mixture to be separated and the molecules of mobile phase, be it gas or liquid.

The speed of migration of a component will depend on its adsorptive affinity relative to the other species present. A number of attractive forces (Vander Waal forces, hydrogen bonding etc.) between the stationary phase and substances to be separated have been recognized and separation takes place due to differences in these adsorption forces.


Related Discussions:- Define adsorption chromatography -basic separation technique

Explain the marasmus - protein energy malnutrition, Explain the Marasmus - ...

Explain the Marasmus - protein energy malnutrition? Marasmus, the other end of the same spectrum as kwashiorkor, is common in children below the age of 2 years. The characteris

Describe what is respiration in dynamic auscultation, Describe what is Resp...

Describe what is Respiration in Dynamic Auscultation ? a) S 2 : Splitting of S 1 is audible during inspiration. b) Diastolic sounds and Ejection sounds: Inspiration augment

What is exudative diarrhoea, Q. What is Exudative diarrhoea? Exudative ...

Q. What is Exudative diarrhoea? Exudative diarrhoea: It is associated with the mucosal damage leading to out pouring of mucus, blood and plasma proteins with a net accumulation

Adrenal medulla, ADRENA L MEDULLA The adrenal medulla develops from th...

ADRENA L MEDULLA The adrenal medulla develops from the neuroectoderm of the embryo. Medulla consists of chromaffin cells or phaeochromocytes. These cells are connected wi

Preparing financial statements from the work sheet, When the work sheet is ...

When the work sheet is finished all the essential information to prepare the statement of retained earnings, income statement and balance sheet is readily available. Currently you

Coronary flow limiting stenoses, Coronary Vasoconstriction 1) Coronary f...

Coronary Vasoconstriction 1) Coronary flow limiting stenoses are caused by concentric or eccentric artherosclerotic plaques, with or without potential for local vasomotor change

How vitamin e is directly related to selenium and pufa, How Vitamin E is di...

How Vitamin E is directly related to selenium and PUFA? Selenium: An inter-relationship exists between vitamin E and selenium, as selenium functions as an integral par1

How does the amoeboid movement occur, How does the amoeboid movement occur?...

How does the amoeboid movement occur? What are examples of beings and cells that use such movements for locomotion? Amoeboid movements are formed by cytoplasmic movements and p

Wildlife - ecology, Wildlife - Ecology The term wildlife probably orig...

Wildlife - Ecology The term wildlife probably originated in 1913 in a book, Our Vanishing Wildlife by William Hornaday, Director of the New York Zoological Park. The main focu

Venting of the heart in myocardial protection, Venting of the Heart :  It ...

Venting of the Heart :  It is important that heart does not distend during cardio pulmonary bypass. This is prevented by venting of the left side of the heart by inserting a cannu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd