Page 13 - Shimadzu GC-2010 Pro
P. 13

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
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