Why we use caffeine for HPLC calibration in Detector wave ength accuracy test59 134057
Why Deuterium lamp is used as UV light Source for UV.4 12125
What is unit of pH?26 33233
Why sodium lamp is used as source of Polarimeter?12 40427
why there is a need of optical activity & specific optical activity measurement by polarimeter6 8232
How many clauses in ISO!1 8712
Why 10%,20%,30% Sucrose solution is used for the calibration of polarimeter?5 18007
what is %labelled amount in content uniformity of dosage unit and its calculation?
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.
Tell me something about Vitamin A test method by HPLC
Why sodium hydroxide used for maintain pH of phosphate buffer
how can delete the impurity in 1-(2:6 dichloro phenyl)-2-indolenone.and desolving the impurity in which solvent but does not desolve product in solvent.
iam usig ph buffers merk. manually how to prepare ?
What is the meaning of Base deactivated vials
Principle of single pan analytical balance
in dissolution in one tablets two molecule one is losartan & second is HCTZ losartam is complies in s1 stage & hctz is complies in s2 stage then how to report result losartan s1 stage result or losartan s2 stage result
how will you do the prep for unstable componds?
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?
If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?
what is the structure of DOWEX-50
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version