please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development717
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?805
How can we calculate offset value pH measurment611
What is stray light in uv what are units for stray light627
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio774
Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...730
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?965
How to check hplc detecter sensitivity?672
How to estimate potassium?1 798
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
How to calculate coreletion coefficient
In IR spectra, generally a molecule vibrates without apply emr or ir light?
EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE
What is the Formula for coreletion coefficient in plhplc calibration
How you develop a method in HPLC?
What is the difference between c8 and c18 hplc column?
What is a difference between potency and purity?
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
why are measure gas flow " ml " in Gas chromatography
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
How to know the estimated LOQ concentration in ppm
what is the purge flow & how to calculate