whai is primary standard?

Answer Posted / narasaiah aurobindo

It must be purity,and impurities are not exceed 0.02 to
0.05%.it should not be hygroscopic and not oxidised by
air.under drying condition it will be stable.during the
storage condition its chemical structure should not be changed.

Is This Answer Correct ?    6 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

1745


if you get peak in blank then what require to do?

473


how require to set assay concentration for standard and sample?

355


What is delay volume?

837


In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

2459






please explain about aluminium hydroxide assay

699


in hplc chromatogram started from left to right and in uv spectrum started from left to right

461


What is the difference between purge septum flow and column flow in gas chromatography?

1823


what is turbidimetric titration?Give 2 examples.

1979


How to establish relative response factor for hplc. Why it is required?

692


can i use hplc detector to uplc and why?

1800


what is the extinction coefficient for Indomethacin or at 319nm wave length.

3511


what is mean by extactable and leachable study?

557


Why potassium dichromate is used in calibration of uv?

1376


from where i get mortar pastle for glass bottle crush? it's required for testing of it?

1725