Plz explain the formula in uv calibration =Absorbance of the sample ( x ) x 10 x 1000/Weight of potassium dichromate taken in mg1 6179
how v can identify functional groups by wet techniques?2 2733
what is the method of UV cabinet CALIBRTION2 11508
WHAT IS THE USE OF STARTER ?????????1317
why IR graph or spectra comes down ? Any reason4 13183
what is partion and column chromatography1248
why we are adjusting the ph in buffer solution preparation2 9808
what is the film thickness in ftir8 9411
what is the principle of assay of sodium nitrite?2 8073
why required specificity in valdation3 5784
whate is difference between calibration and validation11 42953
what type of questions asked on analytical balance and also give answers................all pharma companies?
pharma industries oriented
If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?
how much mass should be there in volumetric flask while in preparation of sample for assay?
In the gas chromatography what is used carrier gas and make up gas?
what is procedure of actual procedure for registration of drug?
how the compound separate in coulunm,explain
if you have given a blank water how you analyse by general analytical techniques?
why we should take dst factor for below 1%moisture samples
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?
How you develop a method in HPLC?
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
As per ICH related substances stability trend limit from initial to shelf life
How do we fix the sample concentaryion in hplc method development?
Why sodium hydroxide used for maintain pH of phosphate buffer