Difference between uv detector nd RI DETECTOR? wt s the difference between OVI Solvents nd residual solvents incase of GAS CHROMATOGRAPHY? nd wt s its detection limit?
3 14347on what basis SOP's can be changed? IF mobile phase ratio is 70:30 to how much % can we change the ratio in HPLC process
7 14918how do start hplc method development? how much sample required for developing the method development?
3 51076which pharmacopeoia mentions that caffiene is used as a standard for HPLC calibration? which other standardscan be used for the same?
1 8038Why will a solution of aspirin without acid or basic hydrolysis give yellow colour with a solution of Ferric chloride?
1 4917In HPLC what is Single point threshold, peak purity index and minimum peak purity index? what should be consider for pure peak.
3 30053Post New Analytical Chemistry Questions
For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
if peak get problamatic then what require to do?
what is mean by peak intigrity?
What is the requirement for brazil in the analytical method vslidation comparr to ich?
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
how require to interprit the method precision data of hptlc?
what is the principle involved in turbidometry and nephelometry ?
What is the difference between spectro meter and spectro photo meter?
What is rs test why we are performing rs test?
what you do when compound having dwel wavelength?
If combination product how require to identify which imp is of which api?
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
on saturation solubility study data how we can find out the bcs class of drug?
In Dissolution Test why limit is define Q+5% what is the role of +5%.
