Circular Dichroism Spectrophotometric Method And Circular Dichroism Spectrophotometry Apparatus Using ATR Method
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United States of America Patent
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Issued Date -
Dec 1, 2011
app pub date -
May 24, 2011
filing date -
May 27, 2010
priority date (Note) -
Abandoned
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Abstract
A simple method and apparatus for circular dichroism spectrophotometry are provided that allow a liquid, cream-type, and gel-type specimens having a low degree of transparency to be measured directly and nondestructively without passing light through the specimens. Right-handed or left-handed circularly polarized light enters a prism from an entrance face and hits a specimen mounting face of the prism, on which a specimen is placed, at an angle of 80°. Then, after being totally reflected by the specimen mounting face and going out from an exit face, the light is detected, and the absorbance is determined.
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