Practically why we get negative absorption in UV
SPECTROPHOTOMETER when the time of cleaning sample analysis.
is negative absorption in Uv valid or not?
how a particular wavelength can be different for a
particular compund while analysing by uv and by HPLC.
what is impurity profile. how to interpret this impurity
profile to a drug product or drug substance.
Basic principle of ESI?
how much mass should be there in volumetric flask while in preparation of sample for assay?
what is difference in ods I ods II
is this is realy from sorbent / packing characteristics or from other means
In the calculation of calorific value of any fuel why the
latent heat of vap. of water is taken as 587 kj/mol whereas
actually it is 540kj/mol?
Why we use potassium dichromate in control of absorbance in uv
region and copper sulphate in control of absorbance in visible
Assuming that the density of the solution is the same as the density of water (density of water=1.000g/ml), calculate the mass of water for both reactions using: mass of water = Volume of water Density of water.
Mass of water =
acceptance criteria for lod & loq by standard deviation of response and slope??
what are the differences between assay procedures and estimation in chemical analysis? also what is the equivalent factor that we consider in assay analytical procedures?
Shall i get the model question papers for junior lecture of
how you determine moist.of NaOH sol or NaOH flacks
can you email me because I have a report and I need you to
answer these questions if you would like to if not I
completely under stand.
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE
PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD
STORAGE SAMPLES BELOW 20* CENTIGRADE?