How to calculate lamp energy in hplc?1 2361
Polarized meter calibration, 1. Method name? 2. Which solution use? 3.why?1 2331
What is definition of RRT and what is the difference between RT and RRT in HPLC2 6154
What is the definition of RRF2 4634
In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?1 2220
What is difference between assay by Hplc and uv2 7797
why we use actone for Gpv test in hplc calibration1 7503
How to choose the which salt is suitable for mobilephase
Explain the relations between number of carbon atoms in alkanes and retention time ?
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
if you have given a blank water how you analyse by general analytical techniques?
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
A ha tc is actual defination of retention time?
why octanol used to determine the partition coefficient ?
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?
WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?
what is %labelled amount in content uniformity of dosage unit and its calculation?
using gradient pressure in gas chromatography are not ?using gradient pressure why
what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?
in dissolution why pool sample needed? in which type of drug pool sample need?