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Advanced Flow Technology




 Advanced Flow Technology for Enhanced  Productivity and Confident Identification




 Backflush System  AFT Software

 The backflush system reverses the carrier gas flow   Normal Analysis  Unnecessary component  The Intuitive and easy-to-use Advanced Flow Technology Software is included with each AFT system. Both the
 after the target compounds have eluted, to discharge   Target Component  backflushing and detector splitting systems are controlled with this software.
 residual late eluting components in the column through
 the injection port split vent.
 Backflush shortens the analysis time and improves
 productivity. In addition, high-boiling point
 components are discharged efficiently to reduce the   Diethylbenzene
 Backflush Analysis                  Chromatogram without backflushing
 bakeout time (elution time), and thus prevent column   Backflush   Styrene  (IS)
 deterioration, contamination, and retention time shifts.   Start


                                     Analysis time 75 minutes
 Analysis time shortened!
 0  10  20 t(min.)   Backflushing: 6.5 minutes
 Detector Splitting System
                                     Chromatogram with backflushing
 Compounds eluting from an analytical column may be   For analysis of natural products such as flavor
              Analysis time: 18.5 minutes
 split to multiple detectors to obtain multiple   compounds, it is efficient to use a combination of FID and
                                     Blank run after backflushing
 chromatograms. Offering abundant information in a single  MS.  FID has a wide dynamic range for quantitative
 analysis, this system saves time and money. In addition,   analysis, while MS has unmatched capability for    10  20  30  40  50  60  70 min
 with concurrent use of selective detectors, confidence in   qualitative identification. Using the detector splitting   Analysis of Volatile Compounds in Polystyrene
 peak identity is improved. We recommend this system to   system, a TIC (Total Ion Chromatogram) and an FID
            Backflushing was started 12 minutes after target substances were eluted.  Analysis time, including the time for
 GCMS users wanting to confirm compound classes using  chromatogram of the same pattern can be obtained
            discharging unwanted substances, could be reduced from 75 minutes to 18.5 minutes.
 detector selectivity.  simultaneously with one analysis.




 Qualitative analysis by MS














 Difference of  Quantitative analysis by FID:
 R. T.: 0.003 min  Wide quantitation response range
 Difference of  Difference of
 R. T.: 0.000 min  R. T.: 0.002 min




            Advanced Flow Technology software download site
            http://www.shimadzu.com/products/lab/gc/index.html







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