verification of wave number why you are use in IR calibration
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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
what is difference between assayand potency
A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?
how can give the expiry period and restadardisation of volumetric solution
0 Answers Meenaxy Pharma, SRF,
Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?
use of stry light
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
What is the size of capillary tube used for analysing melting point?
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?
how many types oos and oot
what is the basis of separation in chromatography?
what is main use of primary standards in caliration
2 Answers Lee Pharma, Lupin, Nectar Lifesciences,
Organic Chemistry 
