Page 82 - Practical book PC406-MNU-2025
P. 82

MANSOURA NATIONAL UNIVERSIY
         PHARM D- CLINICAL PHARMACY                        LEVEL II                       INSTRUNENTAL ANALYSIS (PC 406)




                                Interpretation of Chromatograms























           The data acquired from the chromatogram:

           tm , tRA , tRB , WA , WB ,  ............. cm


                               The required chromatographic parameters:

                                Parameters calculated for each drug (each peak)

                                {i.e. calculated 2 times each time for one drug}

                            Number of theoretical plates (NTP):


                                             2
                            NTP = 16 (    tR  )
                                          w


                            Height equivalent to theoretical plates (HETP):


                            HETP =      L
                                       NTP



                                                  '
                            Capacity factor (K ) =     tR  tM   =   R t 
                                                         tM        tM




          54 | P a g e                                 S e c o n d   s e m e s t e r       2 0 2 4 - 2 0 2 5
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