A Method for Separating PCBs and OCPs in Biota Samples

• Published in: Journal of agricultural resources and environment 2014-01, Vol.31 (5), p.461
• Main Authors: Fu-Qiang, Gong, Jiao-Ling, Bao, Ying-Chun, Wang, Xiao-Ning, Lv, Meng-Xue, Sun, Qing-Bo, Li
• Format: Article
• Language: Chinese
• Subjects: Animal tissues; Biota; Chromatography; Cleanup; Dioxins; Mass spectrometry; Methods; Organochlorine pesticides; PCB; Pesticides; Pollutants; Polychlorinated biphenyls; Scientific imaging; Silica; Silica gel; Silicon dioxide; Solid phases
• ISSN: 2095-6819; 2095-6819
• DOI: 10.13254/j.jare.2014.0163

研究开发了用于分离高脂肪样品中21种多氯联苯(PCBs)和22种有机氯农药(OCPs)的分离柱填料,以及利用该填料分离含脂肪的动物组织样品中PCBs或OCPs的方法。该填料按质量百分比由硅胶-弗罗里硅土混合物30%-35%、酸性改性硅胶50%~60%和无水硫酸钠10%-15%组成,并使用自主研发的四通道色谱分离仪对样品进行分离和净化。利用本方法的填料分离PCBs或OCPs,分离方法高效、快速、工艺简单,可在成本较低的条件下达到显著的分离效果。PCBs化合物柱回收率可达96.4%-119%,对鱼脂肪组织加标回收率可达74.4%-100% OCPs化合物柱回收率可达78.4%-103%,对鱼脂肪组织加标回收率可达78.3%-102%。结果表明该填料可用于分离PCBs或OCPs,色谱分离效果良好,可以满足高脂肪样品中OCPs和PCBs的监测分离需要。 Chromatographic fraction and cleanup method was developed for PCBs and OCPs in biota samples, using a self-developing chro- matographic fraction instrument and solid phase mixture. The solid phase was composed of florisil(30%-35%), acid-treated silica gel(50%-60%)and anhydrous sodiumsulphate(10%-15%). The recoveriesof spiked PCBsand OCPs in column ranged from 96.4% to 119% and from 78.4% to 103% respectively, while in fish fat tissue ranged from 74.4% to 100% and from 78.3% to 102% respectively. This approach was proved to be an efficient, fast, simple and cost-effective method for fraction and cleanup of PCBs and OCPs in biota samples.