Profile: Scientific Instrument Services, Inc. provides supplies & services for mass spectrometers, gas chromatographs and liquid chromatographs. Our mass spectroscopy products includes filaments & heaters, electron multipliers, calibration compounds, mass spectrometer direct probes & interfaces, ceramic insulators and other mass spectrometer parts. GLT tubing, instrument tubing, GC ferrules, micro needle valves, fine metering valves, toggle & ball valves, gas regulators, gas handling equipment, gas purifiers & filters, and SGE Syringes. We also offer thermal desorption systems for the analysis of volatiles & semi-volatiles, Liquid Chromatography products and vacuum systems.