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In GC and HPLC ,how we can decide which of following method will be suitable or use for quantitation of chromatogram at the time of method development. 1.Area Normalisation 2.External standard method 3.Internal standard method
Atul,
1 7281In capadity factor formula is K'= (RT of main compound/RT of first eluted peak)-1 in this formula what is 1
1 7074
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
Define dipole-dipole force?
How are pka and strength of a weak acid related?
What is the organic structure of cetearyl alcohol?
SET Examination Previous Questions
What is acid anhydride of h2co3?
Why USP put two methods for tapped density? When I should use each one?
What is the role of silver sulphate?
WHAT TYPE OF QUESTION ASK FOR POST SENIOR TECHNICAL ASSISTANT IN DRDO
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 disso medium for tropsiun chloride
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
What can be the supporter of combustion except oxygen.
Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .
what is the structure of DOWEX-50
