Page 50 - Basic Gas Chromatography
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      Terms  Symbols   and  Terms,  Definitions,   37      inflection   of  points   to  Tangents   0.399   —  ju  bray  yead  jo  uonsesy   and   0.054   solutes   0.004         a   such   sample,      shape  distribution.  normal   A   3.4.   Fig.   at  occurs  point  inflection   The   The  height.   peak   the   of   0.607   wy  quantity   peak   the   of   0.500   at   width   the   is  known;  corresponds   and  (half-height)  height   2.354
                                          height
      and                               of   10%   peak   tailing   of   pair   chromatogra-   because   much   peak   well   points   a   a   and   the   a   the   of   before.   consequence   chromatographic  system
      Concepts                                    factor.  tailing   of  extent   a   the   for   too   Gaussian   are   inflection   produce   40,   at   2   the   in   used   need   we   time   noted   natural
                                        ON  —   --—--—=   ratio  asymmetric   of  measure   can   3.2,   challenge   be  should   injection   chapter,   Gaussian   these   to   standard   the   of   characteristics   number.   the   to   we   as   that   of  a  efficiency

      Basic                                 A     or      the   represent   verified   technique,   ideal   shape   The   points   deviations,   is   peak   are   column,   retention   have   a   is







                                               Time   define   a   fronting.   Figure   another   peak   faulty   11).   this   a   of  chromatographic  peak.   tangents   four   width   plate   the   chromatographic   relative   is   time  retention   phenomenon   of  the

                                                  to      provide   in   separated,   doublet   from   Chapter   in   characteristics   and   to   The   These   a   that   process.
                                                  used    to   measures   (e)   a   (see   discussions   equal   2.3540.   including   of   one   with   broadening   measure
                                                  Figure   designed   like   peak,   of   result   The   ideal   height   w,,   of   height).   efficiency   but   increases   N:


                                                  3.3.      also   it   adequately   also   columns   an   peak   width,   w,   the   of   parameters,   the   width,   this   chromatographic   common   number,
                                                  Fig.    was   named,   doublet   not   Repeatability   can   theoretical   assumed.   shows   the   of   base   height,   (60.7%   Number   width   most
                                                          definition   so   The   For   Figure   0.607   half   some   the   because   the   The   the
                                                  -              are   shape   degraded   be   3.4   a   describe   peak   illustrates   plate
     36                                                     is   that   pher.   peak   or   will   at   with   at   point   of   Plate   To   of   3.5   of   is
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