wt is difference between assay and purity in hplc?
Answer Posted / arun tiwari
In assay we estimate the exact amount of substance present
in sample matrix w.r.t standard of known potency.
Potency is a measure of the activity of a drug in a
biological system and assay of std refered as potency.
Purity is the test to calculate the content of impurities
present in sample matrix.All impurities can not be analyse
by single method.
| Is This Answer Correct ? | 10 Yes | 4 No |
Post New Answer View All Answers
why require to do water content for drug product?
how to get accurate result for Residue on evaporation in purified water
how pda detector works over uv?
what is the origin to prepare standard operating procedure
why xterra column require to use at higher ph?
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
how to decide for one product require water content or LOD?
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
In which situation we require to prepare the standard solution from sample in Related substance method?
What is the difference between chromatographic purity and related substances?
If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately
is it nessesary to do solution stability for 7 days?
In Dissolution Test why limit is define Q+5% what is the role of +5%.
How do we fix the sample concentaryion in hplc method development. What is the basis?
how we can identify the impurity is coming below loq at transfering site?