particularly argon. Water-cooled argon- and krypton-ion are still found on some older sorting systems, although they are being rapidly superseded by the solid-state laser source (Fig. 2a and 2b). Air-cooled argon-ion lasers were incorporated into an enormous number of benchtop analyzers, and ...
MS analysis of the samples was performed in triplicate with a Q Exactive HF-X mass spectrometer (Q Exactive HF-X Hybrid Quadrupole-OrbitrapTM Mass spectrometer, Thermo Fisher Scientific, Rockwell, IL, USA) in positive ionization mode using an nESI ion source. The temperature of the capillary wa...