Page 6 - Shimadzu Nexera XS inert
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Assured Reliability and Reproducibility







                     Consistent Analysis Reproducibility                                                                                Improves Quantitative Analysis Performance


                     In order to reduce the effect of adsoprtion of metal-sensitive compounds, a system is often passivated by repeatedly   Adsorption of target compounds can be especially detrimental in the low-concentration region, and can worsen
                     injecting samples that contain the target compounds before starting data acquisition. However, this approach not   calibration curve linearity. The Nexera XS inert achieves a wider dynamic range by strongly increasing the quantitative
                     only wastes valuable samples and time, but can make it extremely difficult to acquire reliable data due to changes in   accuracy and detection of low-concentration samples.
                     the state of passivation during continuous analysis. Nexera XS inert systems eliminate the need for the preliminary
                     passivation and provide highly reliable data from the first injection and throughout the analytical session.

                                                                                                                                            mAU                                            ×10 5
                                                                                                                                                                                         7.0  Nexera XS inert + Metal-free column
                                                    First injection            Tenth injection                                                           ATP
                                             mAU                         mAU
                                            250                         250                                                                125                   Nexera XS inert         6.0  Standard UHPLC (stainless steel-based)
                                            200         ATP             200         ATP                                                                               +                       + stainless steel column
                                                                                                                                                                Metal-free column
                                                                                                                                           100                                           5.0
                                                                                                                                                                                                        2
                            Nexera XS inert  150                        150                                                                                                                             r  = 0.9999
                                 +                                                                                                                                                       4.0
                           Metal-free column  100                       100                                                                75                                       Area
                                            50                          50                                                                                        Standard UHPLC         3.0
                                                                                                                                                                 (stainless steel-based)
                                                                                                                                           50
                                             0                           0                                                                                             +                                       r  = 0.9918
                                                                                                                                                                                                                2
                                             0.0  0.5  1.0  1.5  2.0  min  0.0  0.5  1.0  1.5  2.0  min                                                            Stainless steel       2.0
                                                                                                                                           25                        column
                                                                                                                                                                                         1.0
                                          ×10 5                                                                                             0                                             0
                                                                   Nexera XS inert                                                               1.3   1.4  1.5   1.6  1.7    min          0      10    20    30     40      g/mL
                                                                  RSD% = 0.56 (n=10)                                                                                                                     Concentration
                                         8.0

                                         6.0
                                                                                                                                        QC Sample Quantitative Analysis Results (stainless steel-based standard UHPLC)
                                     Area                          Standard UHPLC
                                         4.0                     (stainless steel-based)                                                      QC Sample     Spiked Conc. (µg/mL)                  Intra-Assay (n = 6)
                                                                  RSD% = 10.1 (n=10)                                                                                          Measured Conc. (µg/mL)  Accuracy (%)  Precision (%)
                                                                                                                                                Low               2                 4.53               226              1.6
                                                                                                                                              Medium              20                18.4              91.9              5.7
                                         2.0
                                                                                                                                               High               45                46.4               103              3.3

                                          0
                                           0         2          4          6          8         10
                                                                                                                                        QC Sample Quantitative Analysis Results (Nexera XS inert)
                                                                Number of Injections
                                                                                                                                                                                                  Intra-Assay (n = 6)
                                                                                                                                              QC Sample     Spiked Conc. (µg/mL)
                                                                                                                                                                              Measured Conc. (µg/mL)  Accuracy (%)  Precision (%)
                                                                                                                                                Low               2                 2.01               101             0.78
                                                    First injection            Tenth injection
                                             mAU                         mAU                                                                  Medium              20                20.4               102             0.35
                                            250                        250
                                                                                                                                               High               45                45.0               100             0.79
                                            200                        200
                            Standard UHPLC  150
                          (stainless steel-based)                      150
                                 +          100                        100         ATP
                          Stainless steel column       ATP
                                            50                          50
                                             0                          0
                                             0.0  1.0  1.5  2.0  min     0.5  1.0  1.5  2.0  min




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