Page 9 - Shimadzu iMScope QT
P. 9

Effortless Performance for Accurate Mass






              Excellence in Mass Measurement Accuracy (MMA)

            Mass measurement accuracy (MMA) is the key performance
            attribute underlying all application  elds using high-resolution
            accurate-mass (HRAM) spectrometers. The LCMS-9030 delivers
            the MMA needed for high-con dence identi cation of
            unknown compounds at an unprecedented level of stability.
               This is made possible by new technologies implemented in
            the Intelligent Temperature Control System and the
            UF-FlightTube that accurately offset the changes occurring to
            both internal and external environments. With the LCMS-9030,
            Shimadzu aims to totally refashion the HRAM user experience,
            enabling scientists to run more samples at longer calibration
            intervals with greater con dence and ease.




                                                                     Intelligent Temperature Control System (Patent pending)


              Stable MMA Against Temperature Fluctuation

            Shimadzu’s Intelligent Temperature Control System ensures  Without additional mass correction, the measured accurate
            stable MMA even in laboratory environments susceptible to  masses of all compounds remained within 1 ppm of the
            temperature changes. To demonstrate, standards ranging  theoretical mass for the 60-hour duration of the experiment.
            from 150 to 1700 Da were analyzed continuously after a  With the LCMS-9030, laboratory productivity can be
            single calibration. Normal laboratory temperature  uctuation  increased by running long, calibration-free batches with
            was observed between 25°C and 28°C.                con dence.

            Positive Mode                                      Negative Mode

                  3 2                                 29             3 2                                 29

                                                                                                         27
                                                      27
                Deviation from true mass   m/m [ppm]  −1 1 0  25  Temperature [°C]  Deviation from true mass   m/m [ppm]  −1 1 0  25  Temperature [°C]

                                                                                                         23
                                                      23
                                                                                                         21
                                                      21
                                                                                                         19
                                                      19
                 −2

                                                      15
                                                                    −3
                 −3                                   17            −2                                   17
                                                                                                         15
                   0     12     24     36     48    60                0     12     24     36    48     60
                              Time after calibration [hr]                       Time after calibration [hr]
                         Acetoaminophen  Anisomycin                         Doxorubicin     Salinomycin
                         Progesterone    Mitomycin C                        Thiostrepton    Tubercidin
                         Griseofulvin    Doxorubicin                        Valinomycin     Mitomycin C
                         Rifampicin      Valinomycin                        Temperature
                         Temperature

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