Page 22 - Basic Gas Chromatography
P. 22

Introduction   9  Disadvantages   and  Advantages  Overview:      retention,   for  stand   S   and   M,   R,  subscripts   the   and  volume   a  represents   V   of  volumes   the  represent   Vs   and   Vy  respectively.  stationary,   and  mobile,   retention   The  respectively.  column   the   in  phase  stationary   and  phase  mobile   1.5.  Figure   to  reference   by  described   be   can   Vp  volume,   by  deduced   be   can  pro







                                      ——>   Chromatography:   courtesy   solute   a   F.,  flow  rate,   assumed   used   be   can   sorb   not   without   peak   the   hold-up   interparticle   Vg,   and   V,   term   The   theoretical   gas  carrier   column   the   Snyder,   and   166.
                                      phase   Reproduced   of     is     does   and   the                the   through   R.   and
                   Nu                 mobile   of   M.,   J.   8.   p.   characteristic   column   X  F,   rate   flow   both   and   that   column   methane,   called   or   include   column.   the   used.   chromatographic   the   to   KcVs   pressure,   passage   L.  Karger,   131   pp.  1973,
                                      Time   From   York,   New   This   A.   tp,   time,   Ve   a   retention   represents   by   Vy,   the   approved   phase   gas   also   is   fundamental   retention   =  Ve   column   expands   in  Chapter   equation,   Wiley,



                   thork,                  or  volume   Miller,   1987,   if  the   te   =   constant   volume   solute   a   through   the   or   air   sometimes   interstitial   symbols   in   widely   volume   +  Vu   under   is   during   2.   L.   B.   see:   NY,






             p-----|~¥__-                chromatogram.   Inc.,   Sons,   solute   retention   otherwise,   to   peak   straight  passes   shown   often   symbol   measure   IUPAC   mobile   recommended,   the   of   chromatographic   but   inlet,   discussed   is   this   of   Science,
                          |                &          elute              early    to   the   one                Separation
                            >                                       proportional   concept.   is   The   of   3,   topic
                                         Typical   Wiley   to   by  the   specified   serves   Other   chromatographic   the   derivation
             ae      eee                                                small   phase—it   behavior   peak.   high-pressure   This   to

                     +——  Jeubis         1.5.   John   Inc.   necessary   specified   Unless   is   same   The   air   volume,   column.   volume   not   Equation   Because   the   decreases.   a  “For   Introduction
                                         Fig.   trasts,   Sons,     time   the   ary   this   the   while   the   stant.   >
       8                                                                       an                          at
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