please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development324
How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?352
How can we calculate offset value pH measurment207
What is stray light in uv what are units for stray light241
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio301
Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...252
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?310
How to check hplc detecter sensitivity?233
How to estimate potassium?1 241
Principle of single pan analytical balance
why 6 tablets use for dissolution
acceptance criteria for lod & loq by standard deviation of response and slope??
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
Why Ethanol is Used for Standardization of GC Head space?
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
How can I develope method of dissolution by HPLC OR UV
how to calibrate hplc & gc
why octanol used to determine the partition coefficient ?
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
can i use hplc detector to uplc and why?
What is stray light in uv what are units for stray light