Abstract

Apparatus and methods are described for the determination of infrared spectral absorption of solutions containing about 1 gamma (10⁻⁶ g) of solute. The absorption cell used is a piece of capillary tubing made of silver chloride with a central hole about 0.075 mm in diameter. The cells have lengths of 1 to 1.5 mm and are filled by means of a micropipette. A magnified image of the cell is then projected on the entrance slit of a spectrometer, and the spectral data are recorded. Results with typical organic compounds indicate that satisfactory spectral resolution may be obtained with this capillary cell.

© 1952 Optical Society of America

A Reflecting Microscope for Infrared Spectrometry*

A. R. H. Cole and R. Norman Jones
J. Opt. Soc. Am. 42(5) 348-352 (1952)

Notes on the Practice of Infrared Spectroscopy

R. C. Lord, R. S. McDonald, and Foil A. Miller
J. Opt. Soc. Am. 42(3) 149-159 (1952)

Infrared Microspectroscopy. II*

Elkan R. Blout and George R. Bird
J. Opt. Soc. Am. 41(8) 547-551 (1951)

Multiple Monochromators. III. A Quadruple Monochromator and Its Application to Infrared Spectroscopy

N. S. Ham, A. Walsh, and J. B. Willis
J. Opt. Soc. Am. 42(7) 496-500 (1952)

An Infrared Spectrograph for Use in the 40–150-Micron Spectral Region*

R. A. Oetjen, W. H. Haynie, W. M. Ward, R. L. Hansler, H. E. Schauwecker, and E. E. Bell
J. Opt. Soc. Am. 42(8) 559-566 (1952)