9 Laboratory equipment for gas and liquid chromatography, mass spectrometer, flow injection analysis and sample loader instruments, sample loader, lab-on-a-chip devices and diagnostic instruments, namely, metal and plastic pre-packed and empty columns, connecting tubes, tube cutters, connection fittings, end caps and plugs, capillary columns; accessories for scientific instruments, namely, fluid sample injectors, switching valves and fittings for controlling fluid flow in scientific instruments; scientific instruments, namely solenoid valves and electronic controllers for solenoid valves, ceramic valves, syringe pumps, displacement and dispense pumps, fluidic circuits and manifolds, displacement and dispense pumps, needles and probes; fluid engineering instruments, namely, simple and multi-layer manifolds for liquids, gasses, vacuums, dispensers, flow control, pumps, valve components, laser contact tips, sapphire windows and lenses, precision balls for optical and industrial applications, ball lenses and particle ball lenses, jewel orifices, jewels bearings, viewports, water cutting nozzles; gas restrictor orifices, bar code scanner wand tips, custom sapphire rods, insulator tips and rods, flow control ball and seats; valves and pumps for use in connection with liquid chromatography, mass spectrometer, flow injection analysis and sample loader instruments, sample loader, lab-on-a-chip devices and diagnostic instruments