| 海洋沉积物中多氯联苯微波萃取优化条件的选择 |
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| 引用本文： | 宋喜红,宋吉德,曾艳霞,李晓敏,张学超.海洋沉积物中多氯联苯微波萃取优化条件的选择[J].淮海工学院学报,2009,18(4):88-91. |
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| 作者姓名： | 宋喜红 宋吉德 曾艳霞 李晓敏 张学超 |
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| 作者单位： | 宋喜红,宋吉德,李晓敏,张学超(威海市海洋环境监测中心,山东,威海,264209);曾艳霞(淮海工学院,化学工程学院,江苏,连云港,222005) |
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| 摘 要： | 利用微波萃取-气相色谱法（ECD）测定沉积物中的多氯联苯,采用正交设计实验,对微波萃取条件进行了优化。优化后的萃取条件为微波功率1 200 W,萃取剂为丙酮/正己烷体积比1∶1,体积为25 mL,萃取温度为115℃,萃取时间20 min。采用该方法对威海湾养殖区沉积物中多氯联苯进行了监测,结果表明此方法适用于海洋沉积物样品中多氯联苯的测定。
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| 关 键 词： | 微波萃取 正交实验 多氯联苯 |
Selection of Optimum Extraction Conditions for PCBs in Ocean Sediments |
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| Affiliation: | SONG Xi-hong , SONG Ji-de , ZENG Yan-xia , LI Xiao-min , ZHANG Xue-chao (1. Ocean Environment Monitoring Center of Weihai, Weihai 264209, China; 2. School of Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, China) |
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| Abstract: | Technique of microwave extraction and GC（ECD） was used to analyze PCBs in ocean sediment.The microwave extraction conditions were optimized by orthogonal experiment.The optimized analytical conditions were as follows： microwave power 1200W,ratio of extraction solvent（hexance and acetone） volume 1∶1,extraction temperature 115℃,and extraction time 20min.It was confirmed that the method could be used in sediment by the determination of PCBs in sediment of Weihai Bay. |
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| Keywords: | microwave extraction orthogonal experiment PCBs |
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