In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
2687Why Urasil and Caffeine use for HPLC wavelength accuracy calibration. which is most suitable, Why? other than these which can be used?
7 16815When we r doing processing method for sst in Empower software by HPLC, What value has to give in void volume and as per which pharmacopia!
5 13317is a bonded water molecule in an organic material can be easlisy and accuractly determined by KF rather than LOD
2 6631What will be the effect on HPLC analysis result if three mobile phases given separately through three valves and same proportion mixed together and given by one valve?
LOIL,
1 4459Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
2364mixed 1.0 ml of methanol and 1.0 ml of toluene and injected in gas chromatography.will you prove that both solvents are in the ratio 1:1(not by area normalization)
1 2865Post New Analytical Chemistry Questions
How we choose the mobile phase for method development.?
Related substance method equivalency on control sample or spiked sample?
which situation gc hs and gc als require to use?
What is the acceptance criteria for moisture balance when calibrated with sodium sulfate
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
if you get peak in blank then what require to do?
UV and PDA detector, which have less signal to noise ratio?
how require to select dissolution media? what is discrimination?
what is the principle involved in turbidometry and nephelometry ?
What is the principle of Thermal conductivity detector and FID?
What is control room temperature and which guide line says?
WHY given much noise PDA dector then VWD Dector
If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately
Why potassium dichromate is used in calibration of uv?
What is mean by PDR?