Principle of colorimetric method-2, 4 dinitrophenylhydrazine, Biology

Assignment Help:

Define Principle of colorimetric method-2, 4 dinitrophenylhydrazine?

Ascorbic acid is oxidized to dehydro ascorbic acid by copper (Cu++) ions. 2, 4 dinitrophenyl hydrazine reacts with the ketone group of dehydro ascorbic acid under acidic conditions to give osazone. The depth of the yellowish orange coloured osazone produced upon acidification with sulphuric acid is directly proportional to the amount of ascorbic acid present and can be measured photometrically at 540 nm wavelength.

As you carry out the procedure in the laboratory you will understand the method even better. So then let's get started and practically learn the two methods we have studied above. There are four activities in this practical.


Related Discussions:- Principle of colorimetric method-2, 4 dinitrophenylhydrazine

Determine when the virus is in an inactive state, What is meant when it is ...

What is meant when it is said that a virus is in an inactive state? Viruses considered in inactive state are those whose genetic material is within host cells without synthesis

What result from unbridled continued of the population, Relative to carryin...

Relative to carrying capacity, what may result from unbridled continued growth of our population.

Explain the storage of vitamin a, Explain the Storage of vitamin A? The...

Explain the Storage of vitamin A? The primary organ for storage of vitamin A is the liver. Reserves are found in the stellate cells, as mentioned above. The average liver weigh

Explain plant-filling tissue -parenchyma, Which is plant tissue responsible...

Which is plant tissue responsible for the filling of the space between other tissues? Plant-filling tissue is basically called as parenchyma and the plant parenchyma can be div

How neural impulse is transmitted from one cell to another, Q. What is the ...

Q. What is the structure through which the neural impulse is transmitted from one cell to another? What are its parts? The structure through which the neural impulse passes fro

Biotic potential curve and the real population growth curve, Q. What is the...

Q. What is the relationship between environmental resistance and the population growth according to the biotic potential curve and the real population growth curve? The differe

State the degeneracy of the genetic code, Which of the following contribute...

Which of the following contributes to the degeneracy of the genetic code? A. The presence of 64 codons but only 20 amino acids. B. The ability of a single tRNA to bind to ma

What is termination , In the eukaryotes, eukaryotic release factor eRF...

In the eukaryotes, eukaryotic release factor eRF-1 recognizes all three termination codons that are UGA UAA, and UAG and, with the help of protein eRF-3, terminates translation.

Protein synthesis, Protein Synthesis The central dogma of modern bioche...

Protein Synthesis The central dogma of modern biochemistry is totally based on the coded information holds within deoxyribonucleic acid (DNA). Double stranded DNA is converted

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