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3,5-dinitrosalicyclic acid is an aromatic compound that react with reducing sugar to form 3-amino-5-nitrosalicyclic acid which absorbs light strongly at 540nm.
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Estimation of sugars by DNSA method?
DNSA reagent appears yellow due to ts nitro gp.(chromophore) an alkaline solution of Dnsa is boiled with the reducing sugar to bbe estimated Orange brown coloration result which is read colorimetrically.
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Colorimetric method where blood is mixed with solution containing potassium ferricyanide and potassium cyanide. Potassium ferricyanide oxidizes iron to form methemoglobin and potassium cyanide then combines with methemoglobin to form cyanmethemoglobin.
Why is the froth flotation method selected for the concentration of sulphide ores?
This method is based on the principle of the difference in the wetting properties of the ore and the gangue particles with the water and oil. This method is used for that metals whose ore gets preferably wetted by the oil and the gangue by the water. The sulphide ores preferably wetted by the oil and the gangue with the water. Hence this method is suitable for the concentration of the sulphide ore
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The transforming principle contain DNA.
Estimation of sugars by DNSA method?
DNSA reagent appears yellow due to ts nitro gp.(chromophore) an alkaline solution of Dnsa is boiled with the reducing sugar to bbe estimated Orange brown coloration result which is read colorimetrically.
What are the methods of estimation of reducing sugar?
by comparing the colours or the amount of precipitate
What is the full form of dnsa?
3, 5- dinitrosalicylic acid is the full form of dnsa.
Does DNSA detect polysacchrides?
It detects reducing sugars. DNSA -----> 3-A, 5-N SA
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vaduz
Which is more accurate to measure density Archimedes principle or water displacement method?
They are both the same. displacement method is another name for Archimedes' principle
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the principle of this test are used the method of a qualitative test for the detection of nematode and cestode eggs and coccidia oocysts in the faeces.
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Weaknesses of the direct write-off method is?
Violates the matching principle
Does the full disclosure principle requires that the notes to the financial statements report a change in accounting method for inventory?
The full disclosure principle requires that the notes to the financial statements report a change in accounting method for inventory.
What is principle of high resistance by method of leakage of charge of condenserp?
what is the meaning of infinitesimal.
A major principle underlying the SQ3R study method is that?
the SQ3R study method is based on the principle that active engagement in the learning process helps improve understanding and retention of information. By Surveying, Questioning, Reading, Reciting, and Reviewing material, students can better absorb and remember what they have learned.
