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We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
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
what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
What is the use of tlc and hplc? And when and where use?
What is related substance by HPLC impurity limits as per USP?
What is rs test why we are performing rs test?
how to select short coloum and long coloumn for new molecule
What are modes of quantification in related substances
why salisylic acid not using now days for disdolution calibration?
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
how require to fix the linearity and accuracy cincentration range?
How can I develope method of dissolution by HPLC OR UV
why xterra column require to use at higher ph?
