A workpiece testing and marking system includes an apparatus for testing a workpiece and for selectively generating a signal that is representative of a result of the test. A target extender electrode may be between the suppressor electrode and the target electrode and have an opening therein to permit passage of charged particles to the target. Chemical analysis instruments employed in some embodiments include capillary and gel plane electrophoresis, capillary electrochromatography, high performance liquid chromatography, flow cytometry, flow cells for liquids and aerosols, and surface detection instruments. The outrigger attaches to the engine and outrigger end aperture can provide further attachment support to the bracket assembly. The light emitting molecule also comprises a light emissive group bonded to the second end of the charge transport group and a charge transfer group bonded to the light emissive group.