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Analysis  Qualitative  Analysis   129         FLAME   }  ELECTRON   DETECTOR  IONIZATION  CAPTURE   1S  DETECTOR          “0   500   X   MV   1   DC-200  packed   a   on  sample  gasoline   of  analysis   GC   of  presentation  channel   Dual   8.2.   Fig.   and  Concepts  Chromatography:   M.,   J.  Miller,   From   Corp.  Perkin-Elmer   of  Courtesy  column.   Contrasts,   John   of  courtesy  Reproduced   83.   p.   1987,   York,   New   Inc.



   Quantitative                                     Methyl   a.   alcohol   Ethyl   b.   n-Propyl   c.   n-Butyl   d.   n-Amyl   e.   !   36   From   New   York,   parallel   in   The   different   producing   can




   and                                     alcohol                              l   30   standards.   Inc.,  Sons,   detectors   detection.   for   Identifications

   Qualitative                        j   24   Unknown                         l   24   Standard   using  times   Wiley   &   different   channel   sensitivity   simultaneously   8.2.


                                        18
                                      |
                                           fa}                                 |   18   (b)   John   Inc.   dual   in   Figure
                                    |    |  |  |  |  |  |                              retention
                                                     d                                     Sons,    two    recorded   in
                                       12                                              by   &       of   called   differences
                                                                               |   12    Contrasts,          shown
                                                                                       unknown   and   the
                                   —_—t   oe                                               Wiley    use   are
                                     —jto                                                  John         major   signals   those
                                                                               !
                                   —  po                                         6     of          is   column—so
                                                                                                      GC   a   should
        ~                              oe                                                Concepts   of   have   like
                              Inject                                    Inject   i |      lL   0   Identification   courtesy   interesting   Both

   128                                                                                 8.1.   Chromatography:   Reproduced   More   of   chosen   compounds.   chromatograms
                                                                                       Fig.           exit
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