The increasing demand for high-quality biogas and the reduction of reliance on natural gas have driven the need for a well-defined framework to ensure conformity and quality of biogas by the introduction of traceable reference materials and methods across the community. Furthermore, there is a great need to quantify critical trace impurities in biogas. Here, we perform real-time measurements on reference gas standards containing trace hydrocarbons in biogas that are traceable to the international system of units using Selected Ion Flow Tube Mass Spectrometry (SIFT-MS). There are limited data on reaction rate constants in biogas matrices for SIFT-MS, and here we use the traceable gas standards to determine and compare the reaction rate constants of trace hydrocarbons in biogas and nitrogen. Here, we modify SIFT-MS constants for biogas avoiding the current 30 % bias and prevent the overestimation in the concentration of hydrocarbon amount fractions.

中文翻译：

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使用选择离子流管质谱 (SIFT-MS) 确定用于实时测量沼气和氮气中 BTEX 的改良反应参数

对高质量沼气的需求不断增加以及对天然气依赖的减少，推动了对定义明确的框架的需求，以通过在整个社区引入可追溯的参考材料和方法来确保沼气的一致性和质量。此外，非常需要量化沼气中的关键痕量杂质。在这里，我们使用选择离子流管质谱 (SIFT-MS) 对沼气中含有痕量碳氢化合物的参考气体标准进行实时测量，这些标准气体可追溯到国际单位制。SIFT-MS 沼气基质中反应速率常数的数据有限，这里我们使用可追溯的气体标准来确定和比较沼气和氮气中痕量碳氢化合物的反应速率常数。这里，