Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Define Thin Layer Chromatography?
This is an improvement over paper chromatography and uses thin layers of slurried absorbents like silica gel, alumina, cellulose, Kieselguhr, modified celluloses and polyacrylamide on glass plate or plastic sheet. This facilitates the adhesion of the adsorbent to the plate, binding agents such as calcium sulphate is incorporated into the slurry. Sometimes, the slurry is mixed with fluorescent dye for compounds to fluoresce under UV light. The method of running the chromatography is almost the same as that of paper. The advantage of TLC over paper chromatography is the time required for development is considerably less and secondly the fineness of the adsorbent powder ensures very rapid capillary flow of the solvent along the layer of adsorbent and hence considerable sharpness of the spots from original.
The methods for detecting the spots are same as paper, with an added advantage of spraying with 25% H2SO4 or keeping the plate in iodine vapours. Both the methods are useful for qualitative and quantitative purposes.
What is the Rh factor? The RH factor is a protein of the red blood cell plasma membrane that behaves as antigen in blood transfusions triggering a humoral (antibody-based) immu
middle man of the body
Define about the Zinc Deficiency? Evidence suggests that nearly one-third of preschool children in lower-income countries have stunted growth, and that a considerable proportio
Bottleneck for External Sources for Health Care The implementation bottlenecks arising out of funding by external sources have important implications for the resource allocati
protozoa is divided into how many sub phykum?
Define the term price mechanism and how it works. The price mechanism and its working: The above demonstrated diagram assumes the market is into equilibrium, whereby deman
What are the different patterns of cleavage (segmentation of fertilized egg cell)?
Q. Describe Explicit and Semantic Memory? Explicit memory: This is the conscious recollection of information such as specific facts or events and at least in humans that can be
Which of the following pairs of functional groups CANNOT react with each other by a dehydration reaction? Select one: a. Carboxyl;Hydroxyl b. Carboxyl;Sulfhydryl c. Pho
What is the difference between the endocrine gland and the exocrine gland? Endocrine gland is a gland whose secretions (known as hormones) are collected by the blood and reach
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd