why reference flow required during hplc analysis on rid?1 3321
why hydrogen and zero air used for flame ignition in gc?1 6243
How we get DST moisture 15.4-16.0%. what is the calculation or method behind it.2 13143
what is the results if we use ODScolumn instead of BDS column ,(ther parameter is same for column) in assay method ?3 6539
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.891
what is the use of tap density apparatus? why we calculate it? what is the difference between the bulk density and tap density?1 1908
What is the difference between void volume and delay volume in HPLC?3 13912
What are the primary standards?6 7884
why we want incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ? What is the use to incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ?1 2502
How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium
How to choose concentration of LOQ solutions for RS analysis? Example.
What is the principle of Thermal conductivity detector and FID?
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
could negative ions be produced by bombardment process in mass spectrometry?
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR
what is procedure of actual procedure for registration of drug?
What is the difference between qualitative and quantitative analysis (hplc)
What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.
In IR spectra, generally a molecule vibrates without apply emr or ir light?
Why sodium hydroxide used for maintain pH of phosphate buffer
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
During Validation study, Recovery is passing at all levels but Linearity is failing. Justify?
In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )