what is the extinction coefficient for Indomethacin or at 319nm wave length.2495
how PH an important role in HPLC separation3 12251
Why the same type of columns showing different RT for a single product?6 8544
Shall i use a same hplc column for two different products.?3 5911
What is the difference between low pressure gredient and high pressure gredient in hplc instrument?3 8871
why did uyou choose analytical chemistry?1 1804
Is it compulsory to prepare KBr disc with sample in identification test by FTIR?2 6607
If we are getting split peak in Chromatogram,what we can do?7 11533
Generally for Normal Phase HPLC,stationary phase is Polar.In place of polar if we take non-polar means what happened & why?7 9374
What are modes of quantification in related substances
Why to use propyl paraben in HPLC gradient calibration
EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc
what type of questions asked on analytical balance and also give answers................all pharma companies?
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space
can i use hplc detector to uplc and why?
i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me
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 ?
Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?
What is intact assay method development.....?
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.
WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY
Dear sir, This is R.Kadambavadani working in a pharma industry. while doing RS analysis of ibuprofen API, unknown peak eluting some times in the 0.6 Min RT. Kindly send me what is the exact reason behind that. also am using ACN the mobile phase.
what is definition of validation? which components are followed give detail?