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



In Number of Theoretical Plates (N) = 16 (tr/w)2. where tr: retention time, and W: peak width. My..

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

In Number of Theoretical Plates (N) = 16 (tr/w)2. where tr: retention time, and W: peak width. My..

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

In Number of Theoretical Plates (N) = 16 (tr/w)2. where tr: retention time, and W: peak width. My..

Answer / guest

16 giving to USP md

Is This Answer Correct ?    2 Yes 8 No

Post New Answer

More Analytical Chemistry Interview Questions

is it nessesary to do solution stability for 7 days?

0 Answers  


in each media we require to use SLS? how to proceed?

0 Answers  


full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ?

10 Answers   Orchid,


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

0 Answers  






difference between quality and quantity

3 Answers  


From peak purity spectrum, where or at which point peak purity angle & purity threshold is checked?

1 Answers   Cipla, MSN Pharma,


what is primary solution and secondary solution

2 Answers  


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.

2 Answers  


Why are use silicon oil mr?

0 Answers  


Is it compulsory to prepare KBr disc with sample in identification test by FTIR?

2 Answers  


Categories
  • Organic Chemistry Interview Questions Organic Chemistry (342)
  • Inorganic Chemistry Interview Questions Inorganic Chemistry (123)
  • Analytical Chemistry Interview Questions Analytical Chemistry (1387)
  • Physical Chemistry Interview Questions Physical Chemistry (62)
  • General Chemistry Interview Questions General Chemistry (478)
  • Chemistry AllOther Interview Questions Chemistry AllOther (190)