Detection of Persistent Organochlorine Pollutants in Eggs of Antarctic Seabirds Based on Gas Chroma- tography and Their Ecological Environment Signifi- cance

• 作者: Chen Lihong Lin Bo Lu Bing Ye Maosen Ye Xinrong Zhang Rongbao Zheng Fangqin
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 持久性有机污染物 有机氯农药 污染物检测 环境意义 气相色谱 南极洲 鸡蛋 生态
• 年，卷（期）: 2016,（1）
• 页码范围: 48-51
• 页数: 4页
• 分类号: X131

摘要

By using internal standard method based on gas chromatography-electron capture detector( GC-ECD),the contents of persistent organochlorine pollutants polychorinated biphenyls( PCBs) and organochlorine pesticides( OCPs) in eggs of seabirds( Catharacta lonnbergi,Catharacta maccormicki,Pygoscelis papua and Macronectes giganteus) breeding on King George Island,Antarctica were detected,and their ecological environment significance was discussed. The results showed that the recovery of various compounds ranged from 68. 6% to 90. 8%; relative standard deviation( RSD) was 3. 6%,and the lowest detection limits of PCBs and OCPs were 0. 8- 16 and 2- 12 pg respectively,which could meet the demands for the residue analysis of trace persistent organochlorine pollutants in the eggs of Antarctic seabirds. The contents of PCBs,DDTs,HCB and HCHs in the eggs of Antarctic seabirds were 0. 5- 515. 5,2. 0- 304. 4,0. 5- 70. 5,and 0. 5- 2. 0 ng / g respectively. In addition,the accumulation of PCBs and OCPs in the skuas was enhanced gradually through the food chain. The maximums of persistent organochlorine pollutants appeared in the eggs of C. lonnbergi,followed by the eggs of C. maccomicki. The detection of OCPs and PCBs in the eggs of Antarctic seabirds was not interfered by other compounds containing chlorine,showing that the extraction,purification and detection method was suitable for the analysis of OCPs and PCBs in the eggs of Antarctic seabirds and has high sensitivity and reliability.