9 Chemical analytical equipment, namely, mass spectrometers; Scientific research equipment for use in mass spectrometers for the purpose of sample introduction; Downloadable computer software for generating graphs in connection with measuring chemical and analytical information in data acquisition applications; Scientific apparatus, namely, mass spectrometers and parts and fittings therefor, namely, autosamplers, autodilution, valves, and hydride generators; Laboratory equipment, namely, automated sampling introduction devices for the analysis of seawater and other high matrix systems