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

What are antioxidants, What are antioxidants? To put it simply, antioxi...

What are antioxidants? To put it simply, antioxidants are important naturally occurring nutrients, (vitamins, minerals) which help to protect body from certain types of cancers

Importance of forests - fuel wood, Importance of Forests - Fuel Wood T...

Importance of Forests - Fuel Wood The forests are renewable resources which provide us a wide variety of commodities. For man, forests have been a source of recreation and the

Determine the significance of siphuncle., Determine the significance of Sip...

Determine the significance of Siphuncle. A cord of tissue that passes between different chambers of a Nautilid shell. Siphuncle regulates the amount of air or fluid in chambers

Hemicellulose, HEMICELLULOSE It consists of mannose, galactose, arab...

HEMICELLULOSE It consists of mannose, galactose, arabinose & xylose. It is a structural polysaccharide which helps in formation of cell wall. Maximum quantity of hemic

Functions of polysaccharides, FUNCTION S OF POLYSACCHARIDES Chitin...

FUNCTION S OF POLYSACCHARIDES Chitin is a structural component of fungal cell wall and exoskeleton of insects, crustaceans and some other arthropods. Peptidoglycan o

What is the purpose to use hydrocolloids, Hydrocolloids are extremely versa...

Hydrocolloids are extremely versatile and are used for many other purposes including: (a) Production of pseudoplasticity  (i.e. fluidity under shear) at high temperatures to ea

Define recommended intake of fibre, Define Recommended Intake of Fibre? ...

Define Recommended Intake of Fibre? 1. A minimum of fibre intake of 20 g/day is recommended by the American Dietetic Association (ADA), the National Cancer Institute, US and th

What do you meant by medical writing, Question 1 : What do you meant by ...

Question 1 : What do you meant by medical writing? Show various types of medical writing. Define and explain briefly medical writing Discuss various types of medical w

Explain precautions for gram staining of bacterial cultures, Explain Precau...

Explain Precautions for Gram Staining of Bacterial Cultures? 1. The dilutions should be chosen on the basis of expected counts in the food sample. 2. Food should be kept in

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