How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?

3832

please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1589

why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

1659

What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

783

Why Ethanol is Used for Standardization of GC Head space?

4174

Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

2685

Did anybody have method for acetyl cysteine effervescnce tablet

2214

if peak get problamatic then what require to do?

756

In which situation we require to prepare the standard solution from sample in Related substance method?

730

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.

2178

What is aggregate and fragments in SEC?

2072

Why irmoisture balance is used for corrugated box moisture testing

2373

why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2259

Which parameters require to do in tech transfer?

701

How to do regeneration of Metacarb Pb plus column?

2530