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首页> 外文期刊>Radioisotopes >Possibility of Content Change in Bioethanol Gasoline during Pre-treatment Process for Using Accelerator Mass Spectroscopy
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Possibility of Content Change in Bioethanol Gasoline during Pre-treatment Process for Using Accelerator Mass Spectroscopy

机译：加速器质谱预处理过程中生物乙醇汽油中含量变化的可能性

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We attempted to determine the bioethanol content of E3 gasoline by applying ASTM D6866 method B. In the pre-treatment process using accelerator mass spectroscopy (AMS), the graphite samples were prepared from E3 gasoline. Three portions of the same graphite sample were measured, and the contents agreed within the measurement error of AMS. The graphite samples prepared from eight portions of the same E3 gasoline sample were measured, but the accuracy was insufficient. There are many kinds of hydrocarbon compounds in the gasoline and their boiling points are different. The content of bioethanol was found to decrease with va-porization when E3 gasoline was placed in open air. A very small amount of E3 gasoline is pre-treated for AMS and the volatile loss cannot be ignored. It seems that the content change of bioethanol was caused by vaporization of E3 gasoline during the pre-treatment process.
机译：我们尝试通过ASTM D6866方法B确定E3汽油的生物乙醇含量。在使用促进剂质谱（AMS）的预处理过程中，石墨样品是从E3汽油制备的。测量同一石墨样品的三部分，其含量在AMS的测量误差范围内。测量了由相同E3汽油样品的八个部分制备的石墨样品，但准确性不足。汽油中的烃化合物种类很多，沸点也不同。当将E3汽油置于室外时，发现汽化会降低生物乙醇的含量。极少量的E3汽油经过AMS预处理，挥发损失不容忽视。看来生物乙醇的含量变化是由于预处理过程中E3汽油的汽化引起的。

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