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Deep sea methane electrochemical in-situ long-term monitoring technology and its significance in the ocean environmental investigation and gas hydrate exploration

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表4 进液流速为5 mL/min时脱气系统的脱气效率

Table 4 Degassing efficiency of the degassing system at 5 mL/min

压力/MPa 温度/℃ 脱气前顶空CH4浓度/(μL·L-1) 脱气后顶空CH4浓度/(μL·L-1) 脱气效率/% 5 3~4 38.70 16.88 56.4 10 3~4 49.25 18.38 62.7 15 3~4 53.75 25.91 51.8 20 3~4 83.63 28.67 65.7