In Number of Theoretical Plates (N) = 16 (tr/w)2.
where tr: retention time, and W: peak width.
My Question is here in formula what is 16.Can u explain
briefly?
---Veerabhadrarao.M
Answers were Sorted based on User's Feedback
Answer / m.sivalingeswara rao
This belongs to statistical approach.Theoritical plates are
calculated by 4-Sigmamethod and 5-Sigma method.In 4-sigma
method the constant is 16 and in 5-sigma method constant is-
25
Is This Answer Correct ? | 30 Yes | 3 No |
Answer / chennusrinivas
No use from dat 16 or 25
values, Suppose 16
entered in denominator as a diff units.
Here changing units from original to our known format units,
its mean actually "tow " is converted in to "width".
Is This Answer Correct ? | 2 Yes | 2 No |
is it nessesary to do solution stability for 7 days?
in each media we require to use SLS? how to proceed?
full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ?
what is the use of tap density apparatus? why we calculate it? what is the difference between the bulk density and tap density?
1 Answers Alchemist, Alembic, Apex,
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
difference between quality and quantity
From peak purity spectrum, where or at which point peak purity angle & purity threshold is checked?
what is primary solution and secondary solution
why we are used 4,7,9,2 buffers for the ph calibration
4 Answers Aurobindo, Enaltec Labs,
why we are using buffer solutionas as a mobile phase in hplc.
Why are use silicon oil mr?
Is it compulsory to prepare KBr disc with sample in identification test by FTIR?