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Define Regents for Estimation of Vitamin C - Colorimetric Method?
1. 2, 4 dinitrophenylhydrazine reagent - Dissolve 2 g of dinitrophenyl hydrazine in 100 ml of 9N sulphuric acid and allow to stand overnight. Mix and use.
2. 5% thiourea solution - Dissolve 25 g of thiourea in 500 ml of distilled water.
3. 9N sulphuric acid
4. 85% sulphuric acid
5. 0.6% copper sulphate
6. Colour reagent or Dinitrophenylhydrazine - thiourea - copper sulphate (DTC) reagent - Mix
7. 5% trichloroacetic acid (TCA)
8. 5% metaphosphoric acid in 10% acetic acid solution - Mix 1000 ml of 5% metaphosphoric acid and 500 ml of 10% acetic acid.
9. Ice for cooling.
Q. Can you explain Bauhin? We got the first reference of binary use of species name in Pinax (1623), a publication of a Swiss physician and botanist Casper Bauhin (1560-1624).
Occupational Lung Diseases The common occupational lung diseases include silicosis due to inhalation of inorganic dust, allergic alveolitis due to inhalation of organic dus
Insect killing jar Secure a wide-mouth glass jar with a screw top or single which closes very tightly. Place a wad of cotton in the bottom and cover it with a round piece of ca
What is Barfoed's test and its principle? This test is a specific test for monosaccharides. Principle This test is also a copper reduction test but differs from Fehling
Use of the Activity Chart Organizing teams and to decide its strength of different operations on mass production work. Establishing teams for maintenance and similar
Explain the gradient theoryof experimental embryology
what cell organelle does photosynthesis take place in?
What are some prophylactic measures for tapeworm infections? The main prophylactic measures against taeniasis and cysticercosis are: not to ingest raw or badly cooked swine or
Novel Sources of Natural Colourants Microbial sources Production of materials by microbial cultures has several advantages. The rapid growth of microbes cuts the productio
Q. What is Dyspepsia? Dyspepsia is the most frequent disorder which we all experience some time or the other. Dyspepsia is the term given to a group of gastrointestinal symptom
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