With mass spectrometry equipment vendors lining the Ballroom of the East Brunswick Hilton last week, the North Jersey Mass Spectrometry Discussion Group monthly meeting almost felt like a prelude to the ASMS meeting in Montreal next month. Close to 300 mass spectrometrists from New Jersey and elsewhere — including 29 vendors — had gathered for the “season finale” of a series of monthly seminar meetings that the discussion group, a division of the American Chemical Society, had been organizing over the past eight months.