Nitrogen Purged Liquid Solid Infrared Transmission Cell
Original Publication Date: 1981-Jul-01
Included in the Prior Art Database: 2005-Feb-11
An infrared (IR) transmission cell for holding liquid and high vapor pressure samples that is suitable for use in spectrometers is shown in the side view and top view drawings. The cell 10 has a vacuum flange 12 that forms a seal with the vacuum chamber 14 by means of 0-rings 16. The cell 10 has two IR windows 18 on either side of sample 20. Stainless steel tubing 22 passes through the vacuum flange 12 and the bottom of the cell 10. The tubing 22 is perforated in the cell 10 so that dry nitrogen can purge the sample 20 and the cell 10. A source 24 passes an IR beam 26 through the windows 18 and the sample 20 and the emerging IR beam 26' is monitored by detector 28.