Page 43 - Basic Gas Chromatography
P. 43

Terms         descrip-   the   are   terms   refer  Please   special   Make   used   ones   the   which  Theory,   pass   they   as   chromatogra-   of   that  columns——columns   K,  constant,   determining   in   analyte   or   solute   (1)







                                           and            facilitate   to  presented   additional  chapter,   chromatography.   symbols.   the   of   are   they  IUPAC;   Rate   the   of   broadened   are   aspects  kinetic   efficient   distribution   the   parameter   a   For  column.



                                           Concepts       were   terms   this   In  system.   of  theory   basic   the   some   of  a listing   for   the   by  recommended   presentation   a   with   peaks  solute   which   the   treats  theory   preparing   for   minimum.   a   SYMBOLS   AND   called  constant   controlling   the   as   1   GC   a   down   moves   [Ak   _       Ke   [An   29










                                           Basic          and  definitions   1,   chromatographic   to  related   and   1  Chapter   in   are   that   continues  chapter   by  processes   Rate  column.   guidelines  provides   to  broadening   TERMS,   Constant   equilibrium   Chapter   in   solute   given   A,





                                                          Chapter   the   of   introduced   1.1   Table   those   of   book.   this   This   the  explains   the   and   peak   DEFINITIONS,   Distribution   thermodynamic   presented   a   fast   designated

                                            3.            In   tion   to   note   in   through   phy   keep   A   was   how










     Overview   standard,   detectors,   and  interest,   chooses   output.   instru-   of   the   of   provide   house”   “‘in   the   to   or   single   and   local   data,   devices.   make   computer-based   main   PC   were   or   popu-   their


     Instrument   internal   nonlinear   of   area   then  operator   detector   control   cleaning   to   integrators   with   migrated   handle   to   both   to   acquiring   in   other   to   interfaces   user   the   into   box  A-to-D   decrease,


            percent,   For   peak   The   particular   digital   injection   all   compatible   successfully   means   output   flexibility   transfer   flexible   Current   plugs   PCs



            height   calculations.   the   that   for   programming,   from   Almost   is   now   easy   provide   greater   and   and   integrators.   which   stand-alone   for   costs

            percent,   covering   calibration.   suitable   analysis,   sample.   output   have   provide   and   have   display   speed   card,  A-to-D   separate   As


            area   normalization   injected,   multilevel   routine   BASIC   automated   next   the   GC   the   systems   They   systems   reduction,   processing   dedicated   an   a   integrators.   increase.

            perform   and   be   can   a   provide   and   of   so   computer-based   laboratory.   Computers   data   memory,   than   on   used  versions   stand-alone


            integrators   standard,   standards   perform   can   calibration   integrators   parameters,   injection   and   interface   networks.   chromatographic   terminals.   control,   increased   popular   primarily   rely   Earlier   to   undoubtedly




            Most   external   multiple   software   integrator   Many   column   RS-232-C   digital   Personal   chromatography   multiple   remote   instrument   more   systems   frame.   interfaced   will

     28              an   ment   an           The   them   larity
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