In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?
1 3092Post New Analytical Chemistry Questions
What is mean by PDR?
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
can i use hplc detector to uplc and why?
[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?
How to do regeneration of Metacarb Pb plus column?
in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?
for which product require to do content uniformity? what is limit of cu?
Tell me about analytical method validation in QC
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
we can use expired sample for validation and analyst qualification?
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 ?
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
what is the origin to prepare standard operating procedure
How to set specification of assay, fisdolution and related substances?