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中文摘要：
用同步辐射单光子电离和分子束取样技术结合飞行时间质谱仪，在低压预混层流火焰中测量异辛烷／正庚烷混合燃料（体积比9：1）在当量比为10时燃烧的主要中间产物。检测出24种主要中间产物，计算各种物质的摩尔分数，对其空间浓度分布进行比较分析，得出不同温度下的物质生成历程。添加金属矿物质可以明显改变热解过程中燃料氮向N2的转化特性。
英文摘要：
This study was performed with the use of tunable vacuum ultraviolet （VUV） lasers for molecular beam sampling mass spectrometry （MBMS） to detect the intermediates of a premixed isooctane/n-heptane blends laminar flame. 24 typical intermediate species were identified and quantified by the photoionization mass and efficiency spectra at a stoichiometric mixture of blended fuel/oxygen highly diluted by argon gas. The mole fraction profiles of these species, as a function of flame position, are presented.
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