Abstract
This calibration method, developed for a Perkin-Elmer Model 12 spectrometer, covers the regions 5 to 15μ (NaCl) and 2 to 5μ (LiF). Standardized techniques lowered the standard deviation of the spectrometer itself to 0.10 cm−1 at 1000 cm−1. The formula Ti=T0+(a/νi2−ν02) is shown to be analogous in form and method of solution to the Hartmann dispersion formula, λi=λ0+(c/d0−di). Thus Hartmann formula techniques have been applied to the calibration equation. Solutions are readily handled on a calculating machine; graphical interpolations are obviated. The results have standard deviation of 0.28 cm−1 at 1000 cm−1.
© 1951 Optical Society of America
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