JO/1 ROUSSEL JOUAN
DICHROGRAPH
The Model JO-1 Dichrograph provides a new tool for the study of molecular structure. Automatic recording of circular dichroism against wavelength offers obvious advantages over previous methods. By utilizing the Cotton effect in measuring the difference in absorption of right and left circularly polarized light in the visible and ultraviolet, we can study the characteristic
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properties of certain functional groups. Optically active ketones, especially steroid ketone, both saturated and unsaturated, are particularly susceptible to this type of analysis. A variety of scan speeds, automatic slit control, and linear wavelength recording directly in optical density units, provide quick and easily interpreted results.
In Canada and U.S.A.: INFRARED
I N S T R U M E N T S
BAIRD-ATOMIC,
DEPT.
INC.
33 University Road • Cambridge 38, Mass. Telephone: 617 UNiverslty
4-7430
Elsewhere: Manufacturer: JOUAN, 113 Bd Saint-Germain, Paris 6e France Circle No. 220 on Readers' Service Card VOL. 3 5 , N O . 1 0 , SEPTEMBER 1 9 6 3 ·
2 3 A
