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.
EPIBOLY - The epibolic movements occur only in the prospective ectodermal blastomeres. In the blastula of frog, migration and rearrangement of microceres over megameres i
Q. What is visual accommodation? Visual accommodation is the phenomenon of varying the curvature of the crystalline lens to make possible the difference of its refractivity to
Lack of Osseointegration (Indicated as Mobility) Loss of osseointegration can occur during the early stages of treatment because of the inability of the woven bone to interfac
I nfe c tio u s bursal disease Infectious bursal disease (popularly known as Gumboro disease) is an acute contagious disease of young chicks caused by an RNA virus, a memb
Explain the groups of diabetes food pyramid The six groups of diabetes food pyramid are shown in Figure below. 1) Fat, oils and sweets (smallest group) 2) Milk 3) Mea
Directly observed therapy In treating TB, poor adherence to therapy is the most important cause of treatment failure and is associated with emergence of drug resistance. Medica
Q What is signifying by binomial nomenclature and what are its basic rules? Scientific nomenclature of a species must have at least two names one that classifies it as genus an
AYou are a sergeant in a community relations unit in a mid-sized metropolitan police department. Your division commander sent you off to a 1-week ethics school run by the Justice D
What is the chemical equation of photosynthesis? The chemical equation of photosynthesis is the following: 6 CO 2 + 6 H 2 O + light --> C 6 H 12 O 6 + 6 O 2
Hormones
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