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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 147141 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 12790In 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 7535Post New Analytical Chemistry Questions
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
in stress study if your api not soluble in hcl naoh h2o2 then what require to do?
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
on the basis of bcs class how to proceed the solubility?
on saturation solubility study data how we can find out the bcs class of drug?
how pda detector works over uv?
what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?
What is delay volume?
how you start the solubility study?
how decide the clining method and cleaning method validation require for this perticular products?
we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion
WHY given much noise PDA dector then VWD Dector
What is the acceptance criteria for moisture balance when calibrated with sodium sulfate
can i use hplc detector to uplc and why?
