| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an apparatus which can detect trace oil dispersed into a solvent, e.g. water, with high sensitivity and can sort the components. SOLUTION: The trace oil detector comprises a light projecting section, a light beam reflector 5, a lipophilic film 8, a sample water contact mechanism, a photodetecting section, and a signal processing section 12. (1). Trace oil is detected based on the variation in the quantity of light reflected from a part coated with the lipophilic film and stuck with an oil or the variation in the surface plasmon resonance angle. (2) Trace oil is detected based on the difference of the quantity of reflected light from a part coated with the lipophilic film and stuck with an oil and a part not stuck with an oil or the difference of surface plasmon resonance angle. (3). Trace oil is detected and sorted based the variation in the quantity of received light corresponding to the reflected light from various lipophilic films or the variation in the surface plasmon resonance angle. The detector detects trace oil in three ways.</p> |
