| abstract |
(57) [Summary] [PROBLEMS] To provide an absorbance detection system for a lab-on-a-chip which can perform absorbance detection efficiently and with high sensitivity. SOLUTION: A detection cell 1 having an optical path length of 50 μm to 5 mm, a lens 25 for providing a lens for allowing light to pass through the detection cell 1 in parallel, and a slit for preventing scattered light from entering the detector. 19, and the detection cell 1, An absorption detection system for a lab-on-a-chip in which a lens 25 and a slit 19 are formed integrally with the lab-on-a-chip. Therefore, there is no limitation on the characteristics of the sample, and it can be used for detection of various samples, and since it is not necessary to attach a label to the sample, the labor and cost are lower than in the past, the absorption detection is more efficient, and Can be performed with high sensitivity. Further, the present invention can be widely used in various research fields for lab-on-a-chip to detect various substances without a reaction for detecting a sample. |