Design of photometric absorption ultra-micro volume multi-channel calibration system

Ultra-micro volume is mainly used in emerging fields such as biopharmaceuticals and genetic engineering. As the main volume measurement carrier in laboratories, pipettes can accurately transfer ultra-micro volume. This project designed an ultra-micro volume optical calibration system based on the principle of photometric absorption, which verified the feasibility of optical methods in the field of ultra-micro volume. A multichannel calibration system was designed. The system mainly consists of an optical system, cascade sample chamber and photoelectric detection system. Through the design and installation of the light source, photoelectric collection circuit and each part of the sample chamber, the function of simultaneous verification of ultra-micro-capacity multi-channel is realized. This design shortens the verification time, improves the verification efficiency, reduces the labor intensity of the operator, and greatly improves the efficiency of the verification. Ultra-micro capacity verification work is of great significance.