Basic principle of ESI?
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Why we use methanol as solvent in kf standardisation. Why not other solvent?
2 Answers Caplin Point, Epione Labs, Hetero,
how v can identify functional groups by wet techniques?
what is the relation of normality & molarity ? give me formula?
how do start hplc method development? how much sample required for developing the method development?
3 Answers BMS, Cipla, Indoco Remedies, Sun Pharma,
What is quality controle.
how to get accurate result for Residue on evaporation in purified water
Why linearity of detector performed in HPLC calibration
why we can use only 4 and 7 and 9 buffers in pH calibration
in hplc calibration we are using 0.05% acetone why we are using that one and what happen when its conc increases or decreases
4 Answers Aurobindo, Cadila, Martin,
Nitrogen test is used for which chromatography?
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
why we calibrate ph meter and balance daily.....but hplc and uv requires quaterly?