Page 9 - Shimadzu LCMS-8050
P. 9

UFscanning





                                                                                               UFsensitivity


                                                                 UFswitching
                                                                                                       UF-MRM










                         Only 5 msec to Achieve Stable                            Ion intensity is maintained even
                         Quantitative Accuracy with                        when performing polarity switching at ultra-high speed.
                         Positive/Negative Ionization Switching
                                                                      100  609.20>195.20 (+)  100  100
                     The LCMS-8050 uses unique high-voltage power supply technology   138.00>108.10 (–)
                     to achieve an ultra-high-speed positive/negative ionization switching   %  %   %
                     time of just 5 msec. The LCMS-8050 is also the only instrument of its
                     type to maintain ion intensity even when performing polarity
                                                                        0             0             0
                     switching at ultra-high speed, yielding consistent, reproducible data.
                                                                        0.0   0.1   0.2   min   0.0   0.1   0.2   min   0.0   0.1   0.2   min
                     Excellent quantitative results can be obtained from UHPLC peaks no
                     more than 2-3 seconds wide, even when multiple components are   Positive  Positive  Negative
                     eluted simultaneously.                                                Negative
                                                                         Comparison of measurement using the ultra-fast polarity switching
                                                                         (5msec) and individual measurement of positive and negative ions.





                         Outstanding Throughput and Quantitative Accuracy



                                      Analysis Start                     Analysis End
                     Positive and negative                +                                  -
                     ions measured separately
                                                               Analysis Time: 2 min               Analysis Time: 2 min
                                                                                 After completing an analysis in positive ion mode,
                                                                                 a second analysis begins in negative ion mode.


                     Inadequate polarity                              Switching   -
                     switching             + Switching  - Switching   + Switching
                                             Cycle time   3  4  Analysis Time: 2 min  Since the cycle time is longer, sufficient data points
                                                                                 cannot be obtained for each peak.
                                                                                    Loss of quantitative accuracy
                                                             5
                                                    2
                                                 1              6
                     Ultra-fast polarity   +  -  +                       -
                     switching
                                                         6                       A short cycle time enables acquisition of a sufficient
                                            Cycle       5  7   Analysis Time: 2 min
                                            time                                 number of data points for each peak.
                                                      4     8
                                                                                    Maintains quantitative accuracy
                                                     3       9
                                                  1 2         10 11




                                                                                 Liquid Chromatograph Mass Spectrometer  /&06       9
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