Research on Lactose Concentration Detection Device Based on the Optical Rotation Method

At present, the process of detecting the sample of the lactose detection method is very complicated due to the strict operation condition, long operation time and expensive equipment. Using the nature of lactose that can rotate the plane of polarization of plane-polarized, a lactose concentration detecting device is designed. The device consists of an experiment platform, a photoelectric receiving and converting module, a data processing module, and a LCD module. Laser, polarizer, detector tube, analyzer and photocell are placed on the experiment platform. The test results show that the performance of the detection device is stable and the error is less than 10% through multiple measure on different solutions at different times. The advantage of the device is mainly manifested in its low cost, compact structure, light weight, small volume, fast response speed, and the convenient operation.