| 摘要 |
<p>PROBLEM TO BE SOLVED: To disclose a method and an apparatus for the measurement of an infrared absorption spectrum wherein not only a liquid or semisolid substance but also a solid substance untransferable to an island-shaped metal film can be measured with high sensitivity. SOLUTION: In the measuring method for the infrared absorption spectrum on the surface of a material to be measured, the surface of the material to be measured is bonded to a prism for attenuated total reflection measurement in which the island-shaped metal film is formed on a side on which the material to be measured is arranged, a pressure is applied periodically from its rear side, a modulating signal due to a surface enhanced infrared absorption responding to a change in a strong bond or a weak bond is taken out, and the modulating signal is demodulated by a lock-in amplifier or the like.</p> |
