Liquid chromatography-mass spectrometry system

A liquid chromatography-mass spectrometry system, comprising:

• a pretreatment module configured to pretreat a test sample using a pretreatment reagent;
• a liquid chromatography module configured to elute the pretreated test sample using an eluent;
• a mass spectrometry module configured to perform mass spectrometry on the eluted test sample, at least one of the pretreatment module, the liquid chromatography module and the mass spectrometry module being arranged in a housing;
• a waste gas treatment module, at least a portion of the waste gas treatment module being arranged in the housing, and the waste gas treatment module being in fluid communication with at least one of the pretreatment module, the liquid chromatography module and the mass spectrometry module and being configured to perform liquefaction and absorption of a volatile waste gas in a gas to be treated that is generated by at least one of the pretreatment reagent, the eluent and the eluted test sample;
• and
• a control module configured to generate a waste gas treatment instruction based on waste gas-related information and to control the waste gas treatment module to initiate waste gas treatment on the gas to be treated in response to the waste gas treatment instruction, so as to discharge the treated gas from the liquid chromatography-mass spectrometry system.