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Define Precaution for Separation of Amino Acids by Paper Chromatography?
1. Hold the paper with the extra strip kept at one side. Handling of whatman paper with hand should be avoided.
2. The spotting of amino acid should not be more than 1 mm in diameter since large spots lead to diffused and large amino acid patterns with no sharp outline.
3. The petridish should be saturated with solvent vapours.
4. Solvent front should be marked immediately after removing teh chromatogram, since it disappears rapidly.
5. The outline of each amino acid should be immediately marked with pencil, Do not mark with ball point or ink pen.
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Viscosity The viscosity at temperatures above its gelation point is relatively constant at pH values of 4.5 to 9.0 and is not greatly affected by age or ionic strength within
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Risk analysis - Definition of Hazard Hazard : A biological, chemical or physical agent in or property of food that might be have an adverse health effect.
Digestion of Nucleic Acids Several nucleases present in the pancreatic juice like RNAase and DNAase digest various nucleic acids- These enzymes are endonucleases which h
Green leaves give off oxygen in sunlight Place some water weed under a funnel in a beaker of water reverse a test tube full of water over the tube of the funnel. Leave the appa
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In which of the following functional groups ionization is stabilized by resonance? Select one: a. Carboxyl b. Hydroxyl c. Amine d. Aldehyde e. All of the above
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