Answer / vani

1)deutirIUM will not give nmr signal.
2)Here proton exchange reaction takes place b/w the
chloroform(CHCl3)and the analyte protons.If deutirated
chloroform ie CDCl3 is used, it is easy to locate the
position of proton in the analyte which is exchanged with
the D in the
deutirated chloroform.

what is rs test why we are perfoming rs test

2 Answers  

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2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

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5 Answers   Celon Labs,

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some compound havving uv region but not give much more response during hplc analysis

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why we use x terra columns at higher ph ?

2 Answers   Hetero,

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