How much area of methanol or other solvent are acceptable in blank (Diluent) of Gas chromatography.
2 8043Why 1.2% KCl is used for limit of stray light? and why limit of stray light is required in UV calibration?
5 50166What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.
2121What is the difference between Normal phase method & Reverse method in HPLC ? Define application of both method.
4 19620Post New Analytical Chemistry Questions
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
what is mean by ambient temperature?
How would you decide dissolution medium for NCE compound of class I drug
how many types of balance calibration test?
Why are use silicon oil mr?
Why perchloric acid used for potentiometric titration
In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.
in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
What is the calibration of uv process and preparation
What is delay volume?
Basic principle of ESI?
why multimedia dissolution require to do?
please explain about aluminium hydroxide assay
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
