Page 12 - Shimadzu GC-2010 Pro
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Advanced flow technology - detector splitting system




                                                                                                                                      Compounds eluting from an analytical
                                                                                                                                                                            FID
                                                                                                                                      column may be split to multiple
                                                                                                                                      detectors to obtain multiple chromato-
                                                                                                                                      grams. Offering abundant information
            Advanced flow technology                                                                                                   in a single analysis, this system saves

                                                                                                                                      time and money and improves produc-
                                                                                                                                      tivity. The combination of common      FTD
            Advanced flow technology is a capillary analysis system implementing chromatographic techniques like backflush, heart
            cut, and detector switching.                                                                                              detector and selective detector can
                  It can achieve high efficiency and high separation by improving the efficiency of analysis and accurately separating the   improve the analysis accuracy and
            target component from the complex original samples.                                                                       support the analysis of complex samples
                  Special software for each system can be downloaded free of charge from the homepage of Shimadzu official website.    with more impurities.
                                                                                                                                                                             FPD
            Advanced flow technology - backflush system                                                                                     Injector    Detector



            The backflush system reverses the carrier gas flow after the target compounds have eluted, to discharge residual late eluting com-
                                                                                                                                                             Detector
            pounds in the column through the injection port split vent, thus shortening the analysis time and improving productivity. In addition,   Chromatographic
                                                                                                                                              column
            high-boiling point components are discharged efficiently to reduce the bakeout time and thus prevent column deterioration, contamina-
            tion and retention time shifts.                                                                                                                                     Simultaneous analysis of grape seed oil with detector splitting system (FID, FTD, FPD)
             Target component  Unnecessary (high-boiling point) component
                                                                          Injector               Detector

                                              Normal analysis                         APC                                                             Detector
                                                                                     pressure
                                                                                      control                                          Schematic diagram of detector splitting system
                                                                           Chromatographic           Damper
                                                                             column                   tube
                                                       8                             Backflush
                             analysis time shortened from about 22min to   min        device
                                                                                           Low boiling point
                      Backflush analysis                                    High boiling point   component
                                                                             component
                 2.5  5.0  7.5  10.0  12.5  15.0  17.5  20.0  22.5  min     Schematic diagram of backflush system                      Advanced flow technology - detector switching system
                           Analysis of ethanol in solution
               (comparison between conventional analysis and backflush analysis)

                                                                                                                                      The detector switching system controls sample introduction     Injector   1st detector  2nd detector
            Advanced flow technology - heart cutting system                                                                            through the switching device at the column outlet. Unlike the
                                                                                                                                      detector splitting system, the detector switching system can
            The heart cutting system uses two chromatographic columns     Injector   1st column  2nd detector                         distribute the chromatographic column fractions to different
            with different separation characteristics to separate specific                                                             detectors.
                                                                                                                                                                                                      Chromatographic
            compounds from complex original samples for quantitation. It                                                                                                                                 column
                                                                                                                                                                                                                    Switching unit
            can achieve high separation analysis which cannot be achieved
                                                                               1st             2nd
            by single chromatographic column.                                detector         detector                                                                                            Schematic diagram of detector switching system

                                                                                    Switching unit

                                                                           Schematic diagram of heart cutting system
                                                                                                                                                                                                                         GC-2010 Pro
      12                                                                                                                                                                                                                     Capillary Gas Chromatograph  13
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