Patent ID: 6727498
Filing Date: 2004-04-27
Classification: H01J

Abstract:
A mass spectrometer adapted for underwater use comprising:a watertight case having a fluid sample inlet; a fluid control system adapted to acquire a fluid sample from an aqueous environment for delivery into the watertight case, the fluid control system positioned within the watertight case and in fluid communication with the sample inlet; means for transforming an analyte molecule in the fluid sample from a liquid phase into a gas phase positioned within the watertight case; means for directing the fluid sample to the transforming means from the acquiring means; a mass analyzer housing positioned within the watertight case, the mass analyzer housing in fluid communication with the transforming means; a mass analyzer positioned within the mass analyzer housing; and a vacuum pump system adapted to establish a vacuum within the mass analyzer housing, the vacuum pump system positioned within the watertight case and in fluid communication with the mass analyzer housing.