Objective To add data output and processing functions to ordinary models of UV visible spectrophotometers. Methods Connect the spectrophotometer to an Android system phone using a serial port to USB cable. The phone uses serial software to receive and process the measurement data sent by the spectrophotometer. Results The connection between the spectrophotometer and the mobile phone was successfully achieved. The mobile phone can smoothly receive and store the output data of the spectrophotometer, and perform graphical processing, synchronously drawing the wavelength absorbance scanning spectrum of the sample. The obtained absorption spectrum is basically consistent with the commercial instrument. Conclusion A simple modification scheme for the output and processing of ordinary spectrophotometer data based on Android system smartphones has been proposed. The modification method is low-cost, easy to operate, and ordinary UV visible spectrophotometers with serial interfaces can be upgraded and modified.

spectrophotometer  /  data output  /  mobile phone  /  wavelength scan