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Polyethylene Capillary Tubes as Micro Liquid Cells for Infrared Spectroscopy

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A novel and simple technique for obtaining infrared spectra of microgram quantities of liquid samples is described. The minute liquid sample is enclosed within a micro capillary tube of polyethylene and the spectrum is recorded with a commercial infrared microspectrometer. A modified cold-trap used with the polyethylene micro-capillaries for sampling minute amounts of liquids eluted from gas chromato-graphic equipment is also described.

Document Type: Research Article


Affiliations: Development Department, Union Carbide Chemicals Co., Division of Union Carbide Corp., South Charleston, West Virginia

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