Abstract Carbon steel MIC (microbiologically influenced corrosion) and copper MIC by Desulfovibrio vulgaris (a sulfate reducing bacterium) were shown to behave very differently. Carbon steel MIC was accelerated with an 84 % weight loss increase by 20 ppm (w/w) riboflavin (an electron mediator) while Cu MIC was not. This was because the former belongs to extracellular electron transfer (EET)-MIC while the latter metabolite (M)-MIC. Cu MIC by biogenic H2S yielded a large amount of H2. This work proved that an electron mediator can distinguish EET-MIC from M-MIC, and H2 gas detection is very sensitive in identifying M-MIC with H2 evolution.

中文翻译：

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使用电子介体和析氢检测区分两种不同的微生物影响腐蚀 (MIC) 机制

摘要 碳钢 MIC（微生物影响腐蚀）和 Desulfovibrio vulgaris（一种硫酸盐还原菌）的铜 MIC 表现出非常不同的行为。碳钢 MIC 加速了 84% 的重量损失增加了 20 ppm (w/w) 核黄素（一种电子介体），而 Cu MIC 没有。这是因为前者属于细胞外电子转移（EET）-MIC，而后者属于代谢物（M）-MIC。生物 H2S 的 Cu MIC 产生了大量的 H2。这项工作证明电子介体可以区分 EET-MIC 和 M-MIC，并且 H2 气体检测在识别 M-MIC 与 H2 演化方面非常敏感。