Chiroptical Analytical Methods

Authored by: Neil Purdie

Encyclopedia of Pharmaceutical Science and Technology

Print publication date:  July  2013
Online publication date:  July  2013

Print ISBN: 9781841848198
eBook ISBN: 9781351124874
Adobe ISBN:


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The word chiroptical is descriptive of the techniques that use optical detection devices that are selective toward optically active (chiral) materials and/or molecules. They are used for structural investigation and analytical determination. There are three chiroptical techniques: 1

Polarimetry, which deals with the angular rotation of plane polarized light, usually at a single wavelength.


Optical rotatory dispersion (ORD), in which the angular rotation of the plane polarized light is measured as a function of the wavelength.


Circular dichroism (CD), in which the angular rotation is measured as a function of wavelength, but the light is circularly polarized.

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