Methods of Supercritical Fluid Extraction (SFE) have been used for concentrating organic pollutants in the atmospheric dust. Four factors (extraction pressure, temperature, time and modifier) were studied for the effects on SFE, the conditions selected were 26.0 MPa,80 ,0.5 mL methanol as modifier and 30 min of extraction time. Finally, the extracts were injected into a capillary GC/MS without further concentration. In this manner, 69 organic pollutants including 15 PAHs were detected in the Lanzhou city a...
| 
推荐 
点击下列相关研究机构和相关文献作者，可以直接查到这些机构和作者被《中国知识资源总库》收录的其它文献，使您全面了解该机构和该作者的研究动态和历史。
