Page 4 - Shimadzu Nexera XS inert
P. 4

Unconstrained Recovery and Sensitivity







                     For the quantitative analysis of biomolecules, particularly when high sensitivity is required, the adsorption of the target
                     compound to a metal surface can result in a dramatic decrease in sensitivity. The Nexera XS inert system prevents peak
                     tailing and sensitivity loss by eliminating adsorption of proteins, nucleic acids, and other components to metal surfaces.
                     As a result, reliable and accurate quantitation is possible, even for low-concentration samples.


                                                        2 ng                          100 ng
                                             mAU                            mAU
                                           200                            200
                                                          ADP  AMP                  ADP
                                                                                           AMP
                                                         ATP                     ATP
                                           150                            150
                           Nexera XS inert
                                +          100                            100
                          Metal-free column
                                            50                             50

                                            0                              0
                                              0.0        2.5        min     0.0        2.5        min

                                             mAU                            mAU
                                           200                            200
                                                             AMP
                                                                                           AMP
                                           150                            150
                           Standard UHPLC
                         (stainless steel-based)  100                     100       ADP
                                +
                         Stainless steel column                                   ATP
                                            50                             50
                                                                                                                                        Clear Resolution without Restrictions
                                            0                              0
                                              0.0        2.5        min     0.0        2.5        min



                                                                                                                                        The Nexera XS inert system is equipped with unique technology that ensures the complete inertness of the sample
                     The Nexera XS inert can detect oligonucleic acids with a strong tendency of metal adsorption.                      flow path. The system provides excellent peak shape and unsurpassed chromatographic separation by effectively
                                                                                                                                        inhibiting the adsorption of target compounds to internal surfaces.

                                              ×10 3
                                            10.0
                                                 Negative                 Nexera XS inert                                                             Standard UHPLC (stainless steel-based)             Nexera XS inert
                                                 m/z 803.5>95.00          Standard UHPLC                                                       mAU                                        mAU
                                            8.0                           (stainless steel-based)                                                             AMP                                ADP   AMP
                                                                                                                                              30                                         30
                                                          ×1.7                                                                                                                           20      ATP
                                            6.0                                                                                               20        ADP
                                          Intensity (cps)  4.0                                                                                10                                         10 0

                                                                                                                                              0
                                                                                                                                               0.0  1.0  2.0  3.0  4.0  5.0  6.0  7.0  min  0.0  1.0  2.0  3.0  4.0  5.0  6.0  7.0  min
                                            2.0
                                                                                                                                        Metal-sensitive                                  Material that inhibits
                                                                                                                                                                           Poor peak shape                           Sharp peaks
                                                                                                                                        compounds                                        adsorption
                                                                                                                                                   Adsorption to internal surface  Peak tailing                      Excellent separation
                                             0
                                                                                                                                        Stainless steel tubing
                                                    5.75        6.00       6.25       6.50  min


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