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

State in brief about posterior maxilla, Posterior Maxilla Posterior max...

Posterior Maxilla Posterior maxilla has very poor quality of bone demanding special consideration in implant placement:  Increasing the number of implants to decrease the cr

What are the main characteristics of the age pyramids, What are the main ch...

What are the main characteristics of the age pyramids of developed countries? In a stabilized human population the age pyramid has a narrower base as the reproduction rate is

Glycosylated hemoglobin, Pre-Diabetes is a condition where blood sugar leve...

Pre-Diabetes is a condition where blood sugar level is above normal but below the value to be diagnosed as diabetes mellitus. It has been found that those people with blood sugar v

Cells, What surrounds a plant cell

What surrounds a plant cell

Non-renewable energy sources, In many countries of Asia biomass contributes...

In many countries of Asia biomass contributes l argely as a source of primary energy. People in rural areas at the peripheries of forests, continue to collect fuel wood from adjace

First type of rheological model, Q. First type of rheological model? Th...

Q. First type of rheological model? This method establishes relation between the pressure gradient and the volume rate of flow. Here, the piston measurement is used to measure

Biotolerant materials, Biotolerant materials, are characterized by a thin f...

Biotolerant materials, are characterized by a thin fibrous tissue interface. The fibrous tissue layer develops as a result of the chemical products from leaching processes, leading

Water loss - plant water relation, Water Loss - Plant Water Relation ...

Water Loss - Plant Water Relation Plants lose about 98% of water to the atmosphere by transpiration. Often water loss by transpiration exceeds gain by absorption and results

Explain three parts of homogenate, Differential centrifugation divides cell...

Differential centrifugation divides cellular components based on the differences in their size and / or density. A tissue sample was homogenized and three parts (aliquots) of this

Lymphatic system, L YMPH A TI C SYSTEM As 'Middle man' of circul...

L YMPH A TI C SYSTEM As 'Middle man' of circulation it mediates exchange between blood and the tissue. It is also a collecting system like venous system. Basically 'o

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