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what is basc principle of the HPLC,IR,UV AND GC?
what is difference between diffusion spectra and transmision
spectra in IR?
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Answer / varsha
L1 is octadecyl silane (ODS) bonded with prus silica whereas L7 is tha Octyl silane
| Is This Answer Correct ? | 21 Yes | 25 No |
how to hplc calibrated
when we use pda detector in hplc instead of uv detector
why we use pyridine to determine moisture content of acetonel
Why using Holmium oxide in UV calibration
8 Answers Dr Reddys, Matrix, Nakoda Chemicals, Orchid,
why a ph meter require KCL solution for their storing condition?
what r the parts calibrated in gc
What is the difference between the working standard and reference standard?
ash or residue in that what will be there.
If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?
Why will a solution of aspirin without acid or basic hydrolysis give yellow colour with a solution of Ferric chloride?
In GC and HPLC ,how we can decide which of following method will be suitable or use for quantitation of chromatogram at the time of method development. 1.Area Normalisation 2.External standard method 3.Internal standard method
Why we have to take 42gm of sodium hydroxide instead of 40gm for preparation of 1M Sodium hydroxide as per Pharmacopia? Whether it means the formula for calculating molarity was wrong?
5 Answers Claris Otsuka, Ranbaxy,
Organic Chemistry 
