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On-line ion chromatograph Instrument is a chemical analysis instrument, which can make continuous automatic analysis of the sample and display the ion content of the sample in the form of a spectrogram. In order to ensure continuous detection of the sample, the instrument requires non-stop running. As the equipment is often placed in the studio or remote areas, we need to monitor the on-line ion chromatograph instrument at remote. For this problem we design the remote monitoring system for on-line ion chromatograph instrument. The system realizes functions such as viewing running parameters of On-line ion chromatograph Instrument on mobile and receiving alarm SMS messages on mobile by integrating the MQTT client in On-line ion chromatograph Instrument and deploying broker of MQTT and gateway for SMS.