碳、氢、氧和氮的稳定同位素比值可用于获取有关生物基原料来源和生物基产品生产过程特征的信息。然而，由于这些应用尚不可用，因此本文件中未对元素氮和硫的使用给予任何或有限的关注。 本技术报告概述了碳、氢、氧和氮同位素比值分析的现有应用，这些应用与生物基原料、产品和生产工艺的分析有关

The stable isotope ratios of carbon, hydrogen, oxygen and nitrogen can be used to obtain information about the origin of bio-based feedstock and characteristics of production processes of bio-based products. However, no or limited attention for the use of the elements nitrogen and sulphur is given in this document due to the fact that these applications are not yet available. This Technical Report provides an overview of existing applications of isotope ratio analysis of carbon, hydrogen, oxygen and nitrogen that are relevant to the analysis of bio-based feedstocks, products and production processes