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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
1 149641 why polyesterene film used for ftir calibration ? 2 why k2cr2o7 is used for control of abs in uv ? 3 why holmium oxide used for control of wavelength in uv
3 13065In lcms analysis some times we get sodium and potassium adducts. if the compound is havine sodium ions how can we confirm wether sodium is from sample or it is a adduct?
2 7754Post New Analytical Chemistry Questions
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
why we use a particular hplc column for a particular compound give reasons?please
how can give the expiry period and restadardisation of volumetric solution
what you do when compound having dwel wavelength?
why we are using hexane in calibration of number of drop per mL
Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?
Tell me about analytical method validation in QC
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
How to calibration of the uv spectroscopy and its test?
Why six unit used for precision?
if peak get problamatic then what require to do?
Which are the diffrent grades of api in pharma?
what is the extinction coefficient for Indomethacin or at 319nm wave length.
why we should take dst factor for below 1%moisture samples
