碳稳定同位素技术在PAHs溯源中的应用

Application of Carbon Stable Isotope Technique in PAHs Tracing

介绍了碳稳定同位素分馏原理,对碳稳定同位素技术在PAHs污染物溯源中的应用研究作了综述。研究发现,在碳稳定同位素进行污染物来源识别过程中,碳稳定同位素并不是完全不分馏的,某些小环多环芳烃较易发生分馏,因此,溯源应尽量选用较大环多环芳烃的同位素,同时应多开展不同类型PHAs分馏实验室研究。

This study imroduces the principle of carbon stable isotope fractionation, and reviews the application of carbon stable isotope technique in tracing the PAHs. The previous research shows that carbon stable isotope fraetionation is relatively weak in the process of pollutants transference and transformation. Because some PAHs with low cyclic numbers are easy to produce fractionation, PAHs with high cyclic numbers are suitable as isotope for tracing, and the relative research should be carried on to different types of PAHs fractionation.