基于四通道色谱分离仪快速检测土壤中的低浓度多氯联苯
文献类型：期刊论文
| 作者 | 涂晨 ; 骆永明
|
| 刊名 | 分析试验室
 |
| 出版日期 | 2014 |
| 卷号 | 33期号:8页码:869-874 |
| 关键词 | 多氯联苯 土壤 四通道色谱净化仪 质量控制 气相色谱-~(63)Ni微电子捕获检测器 |
| ISSN号 | 1000-0720 |
| 其他题名 | Quick method for the determination of low levels of PCBs in soil samples based on four-channel purification chromatograph |
| 产权排序 | 中国科学院南京土壤研究所; 大连海事大学环境科学与工程学院; 中国科学院烟台海岸带研究所; 天津大学化工学院 |
| 中文摘要 | 为快速准确检测土壤中21种低浓度多氯联苯(PCBs)的含量,建立了以丙酮-正己烷(1:1, V/V)为萃取剂超声提取,四通道色谱分离仪对提取液进行分离和净化的前处理方法。采用氮吹法将前处理的样品浓缩至50 μL以下,以PCB 54作为内标,利用气相色谱-~(63)Ni微电子捕获检测器(GC-ECD)进行定量测定。土壤中21种PCBs的回收率为68.6%~102.3%,相对标准偏差为2.2%~9.9%,方法检出限为1.21~4.67 μg/kg。采用所建方法对长江三角洲地区经长期植物修复后的PCBs污染土壤和无污染的农田土壤进行检测,结果显示,修复后的土壤PCBs总量为99.88±3.97 μg/kg,无污染农田土壤PCBs总量为69.01±2.19 μg/kg。 |
| 英文摘要 | A quick method for the determination of low levels of 21 polychlorinated biphenyls (PCBs) in soil samples was established under the condition of quality assurance/quality control (QA/QC). PCBs in micro soil samples were extracted with a mixture of hexane-acetone (1:1, V/V) by ultra-phonic technique, and then were purified by four-channel purification chromatograph, which was developed independently in our laboratory. Extracts were concentrated to 50 muL under a gentle nitrogen stream and detected by GC-ECD with the internal standard PCB 54.The recoveries rates, RSD (relative standard deviations) and MDL(method detection limits) for 21 PCBs were 68.6%~102.3%, 2.2%~9.9%, and 1.21~4.67 mug/kg, respectively, which met the demands for US EPA PCBs recoveries. PCBs contaminated soil after long-term phytoremediation in the Yangtze River Delta and non-contaminated farmland soil in the same area were detected by this method. The total concentrations of PCBs in two soil samples were 99.883.97 mug/kg and 69.012.19 mug/kg, respectively. |
| 收录类别 | CSCD |
| 语种 | 中文 |
| CSCD记录号 | CSCD:5204104 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/8413]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 推荐引用方式 GB/T 7714 | 涂晨,骆永明. 基于四通道色谱分离仪快速检测土壤中的低浓度多氯联苯[J]. 分析试验室,2014,33(8):869-874. |
| APA | 涂晨,&骆永明.(2014).基于四通道色谱分离仪快速检测土壤中的低浓度多氯联苯.分析试验室,33(8),869-874. |
| MLA | 涂晨,et al."基于四通道色谱分离仪快速检测土壤中的低浓度多氯联苯".分析试验室 33.8(2014):869-874. |
入库方式： OAI收割
来源：烟台海岸带研究所
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