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Nexera UC

            Supercritical Fluid Chromatography System for Chiral Screening



            When considering analytical conditions for the analysis of chiral compounds, various combinations of                        Combining the Nexera UC Chiral Screening System with Diacel columns
            analytical columns and mobile phases need to be evaluated through trial and error, resulting in considerable
                                                                                                                                      Here we present the results of screening 36 SFC analysis   Scouting conditions
            time and labour taken up by method development.
                                                                                                                                      conditions resulting from combinations of 12 Daicel columns
               This process can be streamlined and sped up signi cantly with the use of Shimadzu's Nexera UC Chiral
                                                                                                                                      and 3 modi ers using the Nexera UC Chiral Screening System.  Chiral columns for SFC
            Screening System for screening analytical conditions, in combination with Daicel's CHIRALPAK and CHIRALCEL                  Because the system can switch automatically between
            series chiral separation columns.                                                                                         modi ers and columns during analysis, the analysis can be   (1) CHIRALPAK  IA-3  (7) CHIRALPAK  AD-3
                                                                                                                                                                                                                  (8) CHIRALPAK  AS-3
                                                                                                                                                                                                (2) CHIRALPAK  IB-3
                                                                                                                                      carried out continuously night or day, allowing for speedier   (3) CHIRALPAK  IC-3  (9) CHIRALPAK  AY-3
                                                                                                                                                                                                (4) CHIRALPAK  ID-3  (10) CHIRALCEL  OD-3
                                                                                                                                      evaluation of analysis conditions. The example shown on this
                                                                                                                                                                                                (5) CHIRALPAK  IE-3  (11) CHIRALCEL  OJ-3
                                                                                                                                      page was completed in one night.                          (6) CHIRALPAK  IF-3  (12) CHIRALCEL  OZ-3
                                                                                                                                        Data can be collected by simply setting the samples and   All columns have I.D. 3.0 mm, length 100 mm, particle size 3  m
                                                                                                                                      mobile phases and initiating analysis, resulting in a signi cant
                                                                                                                                                                                                Modi ers
                                                                                                                                      reduction in labor. The user is free to carry out other tasks
                                                                                                                                      while analysis is in progress, increasing the overall productivity   (1) Methanol
                                                                                                                                                                                                (2) Ethanol
                                                                                                                                      of the lab.                                               (3) Acetonitrile/Ethanol = 75/25 (V/V)
                                                                                                                                        In addition, Shimadzu's LabSolutions HPLC workstation data   For all analyses CO2/modi er = 8/2 (V/V)
                                                                                                                                      browser assists in fast and reliable data processing after
                                                                                                                                                                                                       Automatic analysis for all
                                                                                                                                      evaluation of chiral analysis conditions. A large amount of
                                                                                                                                                                                                   36 SFC chiral screening conditions
                                                                                                                                      scouting data can be viewed at once, along with
                                                                                                                                      chromatogram data such as retention times, area values,
                                                                                                                                      separation values, and symmetry factors.



                                                                                                                                                      Modi er : MeOH                                   Modi er : ACN/EtOH = 75/25 (v/v)
                                                                                                                                               IA         IB         IC         ID                   IA         IB         IC         ID

              Evaluating analytical conditions with the Nexera UC Chiral Screening System
                                                                                                                                               IE         IF        AD          AS                   IE         IF         AD         AS
            When using the system for supercritical  uid chromatography (SFC) analysis of chiral compounds, with the mobile phase being
            a supercritical  uid with high diffusivity, it is possible to carry out analysis in 1/3 to 1/5 the time compared to a conventional
                                                                                                                                              AY         OD          OJ         OZ                  AY         OD          OJ         OZ
            HPLC system. The Nexera UC Chiral Screening System not only allows for SFC analysis, but can also automatically switch
            between up to 12 columns, 4 modi ers, and blends of those modi ers during analysis, greatly reducing the overall work ow.
              With the dedicated software, "Method Scouting
                                                                                                                                                       Modi er : EtOH                           mAU
            Solution", the columns and modi ers to be used can
            be managed in a database, and various analytical                                                                                   IA         IB         IC         ID               CHIRALCEL OZ-3/SFC
                                                                                                                                                                                                 MeOH
                                                                                                                                                                                             600
            conditions can be applied by simply selecting them
            from the graphical user interface (GUI).
                                                                                                                                               IE         IF        AD          AS           400              Resolution: 7.97
              It supports evaluation of analytical conditions in
            multiple ways: calculating modi er and sample                                                                                                                                    200
            amounts required, prevention of degradation through                                                                               AY         OD          OJ         OZ
            column rinsing and changeover of enclosed  uids                                                                                                                                    0
            post-analysis, and prediction of analysis completion                                                                                                                               0.0    1.0   2.0    3.0   4.0    min
            times.                                                                                                                                                                Screening Results






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