which lights using during force degradation?
what is difference between zero air gas and o2 gas
1 Answers IPCA, Vasudha Pharma,
What is the reason for negative peak in HPLC while using UV detector.
what is the disso medium for tropsiun chloride
why KF factor is between 4.5 to 7.5 mg/ml ? why ? why sometime pyridine is used in analysis like in raw material solvent like acetone etc?
11 Answers Aurobindo, GVK, Sohan Healthcare,
How to fix the sample concentration in related substances development.
3 Answers Novartis, Watson Pharmaceuticals,
In method developement or in any analysis if we use small length column for analysis what happen then ? why ?
Qc interview questions
how to prepare solution in ppb
What are the six USP melting point reference standards?
When we calculate Impurity against impurity std.solution and when we calculate impurity against diluted standard with applying RRF?
Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...
Why we show ammonia vapours to tlc plate?to which compounds?