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

Define about oxygen molecule, How many pairs of electrons do the two oxygen...

How many pairs of electrons do the two oxygen atoms in an oxygen molecule share with each  other? Explain your answer. The oxygen atoms share two pairs of electrons, sinc

The outside of the neuron to the inside, Which of the following require ATP...

Which of the following require ATP? The movement of potassium from the outside of the neuron to the inside? The movement of sodium into the neuron through a chemically gated

What is cellular respiration, What is Cellular Respiration? Cellular R...

What is Cellular Respiration? Cellular Respiration : The most important of the metabolic processes, cellular respiration, provides energy for most chemical reactions in an or

Define recommended dietary allowance for vitamin a, Requirement and Recomme...

Requirement and Recommended Dietary Allowance (RDA) for Vitamin A? Recommendations for adequate vitamin A intake based on the amounts needed to correct night blindness among vi

Define terpene alcohols - non glyceride fractions, Define Terpene Alcohols ...

Define Terpene Alcohols - non glyceride fractions? Partly free, partly esterified e.g. ferulic acid; these are found in significant amounts in rice bran oil, wheal germ oil, so

Define hydration properties of proteins, Define Hydration Properties of Pro...

Define Hydration Properties of Proteins? General conformation of individual proteins in solution is largely dependent on the interaction with water. The progressive hydration o

Reducing cost of accident, Reducing Cost of Accident One clear way to ...

Reducing Cost of Accident One clear way to control the cost of accident would be to follow all the rules of book for safety. All the methods of safety which were described ear

Culture conditions, Culture Conditions The culture vessels placed in s...

Culture Conditions The culture vessels placed in suitable trays or racks, are stored on the shelves in a hygienically maintained culture room, under controlled conditions of l

Disorders of pituitary function, Disorders of Pituitary Function: The ...

Disorders of Pituitary Function: The disorders of pituitary function result  in following conditions.  Hypopituitarism : Growth Hormone  (GH) Deficiency Hypopituitarism is

A field trip to observe flowers, A field trip to observe flowers:- Plan...

A field trip to observe flowers:- Plan a field trip to view flowers in bloom. If no interesting wildflowers can be found growing near the school, the trip can be planned to a p

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