What is the diference between residual solvents and organic volatile matter626
How to decide the standard concentration for related substances hplc method1 865
Why we have to use KBr pellet technology ?1 797
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...505
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth522
What is the difference between qualitative and quantitative analysis (hplc)1 1016
How NMR spectra can be calibrated in presence or absence of TMS?1 814
What is Band broading effect explain500
we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion434
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
Can we interpret accuracy from linearity in method validation?
WHY given much noise PDA dector then VWD Dector
why we use a particular hplc column for a particular compound give reasons?please
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
What is stray light in uv what are units for stray light
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
why equlirium conatant of water have 14 value
What is third generation HPLC Columns?
what type of questions asked on analytical balance and also give answers................all pharma companies?
Why to use propyl paraben in HPLC gradient calibration
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
What is the calibration of uv process and preparation