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what are the sources in ELSD,PDA, RI and UV Detectors?
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which solution used for detecting factor of k.f.titroter except water
Suppose we prepared pH buffer solution in lab.and calibrate against NIST solution, and same shall going to used upto 30 days. is it possible to stable pH and apperance ? suggest ?
How we will choose pH of a mobile phase if analyte pKa value is 4
how to pepare 6.8 pH phosphate buffer
How you start the method development of unknown compound.
on what basis SOP's can be changed? IF mobile phase ratio is 70:30 to how much % can we change the ratio in HPLC process
what is stability study ? why it is needed and how itis done
In capadity factor formula is K'= (RT of main compound/RT of first eluted peak)-1 in this formula what is 1
Why do we use 0.005M h2so4 solution for preparation of k2cr2o7 solution for UV calibration?
3 Answers Jubilant, Medreich, Mylan,
What is the difference between Normal phase method & Reverse method in HPLC ? Define application of both method.
Why using Holmium oxide in UV calibration
8 Answers Dr Reddys, Matrix, Nakoda Chemicals, Orchid,
why sucrose used in polarimeter calibration?
2 Answers Reddy Labs, Sugar Factory,
Organic Chemistry 
