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could negative ions be produced by bombardment process in mass spectrometry?
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one gram of which below elements has the most atoms in its? a) H b) D C)T D) He
in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?
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 GF254 means in TLC plate?
why do we adjusted ph in the mobilphase
9 Answers Cipla, Dr Reddys, Reddy Labs,
HPLC Calibration was done in Reverse Phase, but not in normal phase why explain?
In which situation we require to analytical method validation of excipient?
why potassium dicromate use in calibration of UV VIIBLE SPECTROCOPY ?
what is the difference between the Purity and Potency of drug substance
1 Answers Divis Laboratories, Graviti Pharmaceuticals,
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
What is UV cut off?
In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?
8 Answers Aurobindo, Cipla, FDC,
Organic Chemistry 
