Then the stable carbon isotope composition of PAH series such as alkyl naphthalene and alkyl phenanthrene in crude oil samples of Tuha basin were determined on GC-IRMS.

• 并通过色谱-同位素比值质谱（GC-IRMS）技术对吐哈盆地原油中烷基萘和烷基菲等系列化合物的碳同位素组成进行测定。