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| 加速溶剂萃取—气相色谱质谱联用法测定菜地土壤中多氯联苯 | |
| 引用本文： | 李拥军,温贤有,陈坚文,李选统,周霞.加速溶剂萃取—气相色谱质谱联用法测定菜地土壤中多氯联苯[J].广东农业科学,2011,38(10):145-147. |
| 作者姓名： | 李拥军 温贤有 陈坚文 李选统 周霞 |
| 作者单位： | 1. 中山市农产品质量监督检验所,广东中山528403;农业部生态农业重点开放实验室,厂东广州510642 2. 中山市小榄镇农业服务中心,广东中山,528415 3. 中山火炬职业技术学院,广东中山,528436 |
| 基金项目： | 国家自然科学基金(30670380); 农业部生态农业重点开放实验室开放课题(2009k07); 中山市科技计划项目(20092A219) |
| 摘 要： | 建立了加速溶剂萃取/气相色谱质谱联用技术分析菜地土壤中16种多氯联苯的新方法。优化后的萃取条件为:60%提取池的丙酮∶正几烷(体积比1∶1)为萃取剂,萃取时间为5 min。16种多氯联苯均具有良好的线性关系,相关系数不低于0.993,加标回收率为92.1%～104.3%,相对标准偏差为2.5%～7.7%,检出限为0.24～1.82 ng/mL。应用于菜地土壤中多氯联苯的检测,结果满意。 |
| 关 键 词： | 菜地土壤 多氯联苯(PCBs) 加速溶剂萃取 气相色谱质谱法 |
Determination of PCBs in vegetable soil by GC/MS and accelerated solvent extraction |
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| LI Yong-jun,WEN Xian-you,CHEN Jian-wen,LI Xuan-tong,ZHOU Xia.Determination of PCBs in vegetable soil by GC/MS and accelerated solvent extraction[J].Guangdong Agricultural Sciences,2011,38(10):145-147. | |
| Authors: | LI Yong-jun WEN Xian-you CHEN Jian-wen LI Xuan-tong ZHOU Xia |
| Institution: | LI Yong-jun1,2,WEN Xian-you1,CHEN Jian-wen1,LI Xuan-tong3,ZHOU Xia4(1.Zhongshan Quality Supervision & Inspection Institute of Agricultural Products,Zhongshan 528403,China,2.Key Laboratory of Ecological Agriculture of Ministry of Agriculture,Guangzhou 510642,3.Agricultural Service Center of Xiao Lan Town,Zhongshan 528415,4.ZhongShan Torch Polytechnic,Zhongshan 528436,China) |
| Abstract: | A new method was developed for the determination of 16 PCBs in vegetable soil by accelerated solvent extraction coupled with gas chromatography-mass spectrometry.The extraction conditions were optimized.A good extraction efficiency was obtained by using 60% of the extraction cell acetone and hexane as extraction solvent,extracting for 5 min.The calibration curves for 16 PCBs all had good linear relationships with correlation coefficients not less than 0.993.The spiked recoveries ranged from 92.1% to 104.3% ... |
| Keywords: | vegetable soil polychlorinated biphenyls accelerated solvent extraction GC/MS |
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