Why do we use KMnO4 in the test of control of obsorbance ?
and why do we take specific quantity i.e 57-63mg?
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when we have polar type of sample and solvnt hen which type of stationry phase we have to use
what is separation techniques.
IN DISSOLUTION S1 STAGE 1 BOWL GOT 52%(Q POINT IS 80%)WHAT WE HAVE DO
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.
What is difference between FID and TCD in gas chromatography
why the same column give different retention time in hplc?
what is difference between polarity and dipolemoment
Why KBr pellet is used in IR?
why urasil use in hplc column perfomance?
WHAT IS DIFFERENCE BETWEEN RRT AND RRF IN HPLC
why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc
2 Answers GVK, Torrent Pharma,
How can we konw that the HPLC column is endcapped? Is it possible to identify visually without COA?
Organic Chemistry 
