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Polyethylene Capillary Tubes as Micro Liquid Cells for Infrared Spectroscopy

Volume 12, Number 5 (Oct. 1958) Page 143-145

Molnar, W.S.; Yarborough, V.A.

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.