Method for detecting content of total organic matters in water in microgravity environment

Abstract

The invention discloses a method for detecting the content of total organic matters in water in a microgravity environment. The method comprises steps as follows: (1), a to-be-detected water solution is subjected to acid treatment and then divided into a detection sample and a contrast sample; (2), the detection sample is sufficiently oxidized through an electrode oxidation reaction, and the contrast sample is not oxidized; (3), the oxidized detection sample and the unoxidized contrast sample are filtered through selective films; (4), the electric conductivity of CO2 in the oxidized detection sample and the electric conductivity of CO2 in the unoxidized contrast sample are measured, and the total carbon content and the inorganic carbon content of the to-be-detected water solution are acquired through calculation; the content of the total organic matters in the to-be-detected water solution is acquired with a minusing method. According to the method, dependence on chemicals is reduced, the safety is high, a gas-liquid separation process is not required, and the method can be effectively applied in the microgravity environment.

Description

technical field [0001] The invention relates to a method for detecting the content of total organic matter in water, in particular to a method for detecting the content of total organic matter in water under a microgravity environment. Background technique [0002] The total organic carbon (TOC) content in water represents the sum of organic matter contained in water, reflecting the degree of water pollution by organic matter, and its detection is a means to comprehensively reflect water quality. At present, the measurement of total organic carbon analysis has been widely used in the monitoring of surface water, drinking water, seawater, industrial water, pharmaceutical water, etc. This method has actually become the main detection method for water quality control in the world. [0003] It is very difficult to directly measure the total organic carbon content in water. At present, the common measurement method is to first oxidize the total organic carbon in water to generat...

AI Technical Summary

Problems solved by technology

[0005] At present, the detection method of total organic carbon applied on the International Space Station is the electrochemical combustion method combined with the non-dispersive infrared detection method. A high-performance gas-liquid separation device is costly and complicated, and this device is not easy to popularize at home and abroad

In addition, during the process of researchers in this field trying other methods that can effectively detect the content of total organic matter in water in a microgravity environment, there are situations where dangerous chemicals are used, such as ammonium persulfate (oxidant) and other chemical substances, which are harmful to microgravity. Use in gravity environments poses a safety hazard, and the stability of these pathways could be improved

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