Abstract

Qualitative and quantitative analyses of light-absorbing solutes may be carried out rapidly and accurately by direct visual comparison of “offset” spectrophotometric curves linear in log log1/T and plotted on transparent paper. Only the final chemical analytical data are read; no explicit account is taken of optical parameters, and the curves may be plotted on gridless paper.

© 1949 Optical Society of America

A Device to Facilitate the Reading of Spectrophotometric Curves†

Genevieve Reimann and Earl J. Carmine
J. Opt. Soc. Am. 36(4) 235-236 (1946)

Emulsion Calibration Scale for Quantitative Spectroscopic Analysis

Harold K. Hughes and R. W. Murphy
J. Opt. Soc. Am. 39(6) 501-504 (1949)

A New Spectrophotometer Employing a Glass Fery Prism*

W. C. Miller, G. Hare, D. C. Strain, K. P. George, M. E. Stickney, and A. O. Beckman
J. Opt. Soc. Am. 39(5) 377-386 (1949)

A Survey of Present Methods Used to Determine the Optical Properties of Phosphors*,**

Wayne B. Nottingham
J. Opt. Soc. Am. 39(8) 641-647 (1949)

A Comparison of Direct Colorimetry of Titanium Pigments with Their Indirect Colorimetry Based on Spectrophotometry and a Standard Observer

Deane B. Judd
J. Opt. Soc. Am. 39(11) 945-950 (1949)