what is the meaning of linearity,principle of co-relation coefficient?3 6077
In UV we measure absorbance , how it is happend ? explain me4 7046
why we are performing residue on ignition?6 13085
why we are performing residue on ignition?2 6760
NMR is both qualitative and quantitative?EXPLAIN2 4163
HOW TO CALCULATE THE MASS OF UNKNOWN IMPURITY IN LC-MS? AND WHAT IS THE ROLE OF FRAGMENTATION IN LC-MS ?1 3997
How to choose concentration of LOQ solutions for RS analysis? Example.
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.
How to check hplc detecter sensitivity?
why we use sodium salicylate in uv light calibration at TLC chamber
What are modes of quantification in related substances
USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?
Why sodium hydroxide used for maintain pH of phosphate buffer
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
Why Ethanol is Used for Standardization of GC Head space?
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.
what type of questions asked on analytical balance and also give answers................all pharma companies?