Application of Magnetic Nanoparticles in Pretreatment Device for POPs Analysis in Water

[摘要] In order to reduce process time and labour force of POPs pretreatment, and solve the problem that extraction column was easily clogged, the paper proposed a new technology of extraction and enrichment which used magnetic nanoparticles. Automatic pretreatment system had automatic sampling unit, extraction enrichment unit and elution enrichment unit. The paper briefly introduced the preparation technology of magnetic nanoparticles, and detailly introduced the structure and control system of automatic pretreatment system. The result of magnetic nanoparticles mass recovery experiments showed that the system had POPs analysis preprocessing capability, and the recovery rate of magnetic nanoparticles were over 70%. In conclusion, the author proposed three points optimization recommendation.

[发布机构] Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, No. 37 Miaoling Road, Laoshan District, Qingdao City, Shandong Province; 266061, China^1;Ocean University of China, No.238, Songling Road, Laoshan District, Qingdao City, Shandong Province; 266100, China^2

[效力级别] 材料科学

[关键词] Automatic sampling;Enrichment units;Extraction and enrichments;Extraction columns;Magnetic nano-particles;New technologies;Preparation technology;Pretreatment systems