Vacuum Ultraviolet Absorption Spectroscopy System And Method

摘要

An efficient absorption spectroscopy system is provided. The spectroscopy system may be configured to measure solid, liquid or gaseous samples. Vacuum ultra-violet wavelengths may be utilized. Some of the disclosed techniques can be used for detecting the presence of trace concentrations of gaseous species. A preferable gas flow cell is disclosed. Some of the disclosed techniques may be used with a gas chromatography system so as to detect and identify species eluted from the column. Some of the disclosed techniques may be used in conjunction with an electrospray interface and a liquid chromatography system so as to detect and identify gas phase ions of macromolecules produced from solution. Some of the disclosed techniques may be used to characterize chemical reactions. Some of the disclosed techniques may be used in conjunction with an ultra short-path length sample cell to measure liquids.

主权项

1. A gas chromatography analysis system, comprising:
a gas chromatography column, the gas chromatography column configured to provide at least one gas analyte to be analyzed; a gas flow cell coupled to the gas chromatography column so as to receive a flow of the analyte from the gas chromatography column; a detection space within the gas flow cell, the detection space having a volume of approximately equal to or greater than the volume of the analyte provided from the gas chromatography column; a light source coupled to the gas flow cell; and a detector coupled to the gas flow cell, the gas flow cell configured to pass light from the light source through the detection space to the detector for detecting a property of the analyte.