摘要 |
<P>PROBLEM TO BE SOLVED: To reliably determine the existence and identification of VOCs including trace quantities of VOCs by providing a robust mass spectrometry system that can provide continuous, real-time, and in site analysis. <P>SOLUTION: A microwave or high-frequency RF energy source ionizes particles of a reagent vapor to form reagent ions. The reagent ions enter a chamber, such as a drift chamber, to interact with a fluid sample. An electric field directs the reagent ions and facilitates an interaction with the fluid sample to form product ions. The reagent ions and product ions then exit the chamber under the influence of an electric field for detection by a mass spectrometer module. The system includes various control modules for setting values of system parameters and analysis modules for detection of mass and peak intensity values for ion species during spectrometry and faults within the system. <P>COPYRIGHT: (C)2012,JPO&INPIT |