What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?
313How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?
281if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?
280in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?
340Post New Analytical Chemistry Questions
What is shaking level in GC?
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
if content uniformity passing but dissolution varrying then what is next step?
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?
In rs method development when we are going area normalization method to dilute standard method?
how you start the solubility study?
Many times I don't got a caffeine peak in calibration of hplc using guard column ❓
why require to do water content for drug product?
Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...
in api coa contains only process impurities and in product coa contains degradation impurities?
Difference between the quantitative analysis and qualitative analysis?
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
sop of a uv visible spectrophotometer double beam elico model
