why reference flow required during hplc analysis on rid?1 3414
why hydrogen and zero air used for flame ignition in gc?1 6373
How we get DST moisture 15.4-16.0%. what is the calculation or method behind it.2 13897
what is the results if we use ODScolumn instead of BDS column ,(ther parameter is same for column) in assay method ?3 6701
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.927
what is the use of tap density apparatus? why we calculate it? what is the difference between the bulk density and tap density?1 2044
What is the difference between void volume and delay volume in HPLC?3 14290
What are the primary standards?6 8077
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 2577
how much mass should be there in volumetric flask while in preparation of sample for assay?
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
about method developement in hplc
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
WHAT IS DIFFERENCE B/W MALTINGRANG/DSC
For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?
What is control room temperature and which guide line says?
In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )
if you have given a blank water how you analyse by general analytical techniques?
Why dissolution test is not performed in all of the products
how to calibrate hplc & gc
what is the extinction coefficient for Indomethacin or at 319nm wave length.
why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?
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
wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language