how to qualify the impurity?
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How much area of methanol or other solvent are acceptable in blank (Diluent) of Gas chromatography.
What is principle of Polarimeter?
1)why use benzophenon,uracil in hplc calibration. 2)why use sucrose in polarimeter calibration. 3)what is S/N ratio, noise and drift in hplc 4)how we can find lod and loq in method validation
why we need to do karl ficher fector ?
why the ph scale range is 1 t0 14 and why not beyond 14 and not to below 1?
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why IR graph or spectra comes down ? Any reason
about method developement in hplc
why did uyou choose analytical chemistry?
which brands GC coloumn available in market
what is the identification test of volatile substance? what is volatile compound?
why buffer is added in solvent system in HPLC ??
Why we inject a standard 6 times for Related substances by HPLC and 5 times for Assay?