| 引用本文: | 张建军,董铮,王悦.气相色谱法测定水体中多氯联苯Aroclor系列[J].环境监控与预警,2013,5(4):18-21 |
| ZHANG Jian jun,DONG Zheng,WANG Yue.Determination of Aroclors in Water by Gas Chromatography[J].Environmental Monitoring and Forewarning,2013,5(4):18-21 |
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| 摘要: |
| 采用液液萃取—气相色谱法（GC-ECD）测定水体中多氯联苯Aroclor系列Aroclor1016、Aroclor1221、Aroclor1232、Aroclor1242、Aroclor1248、Aroclor1254、Aroclor1260。样品经正己烷溶剂萃取，再经全自动样品浓缩仪（EVA）浓缩萃取液至1mL，供气相色谱仪测定，外标法定量，加标回收率在75%～110%之间，检出限为0.1μg/L。该方法采用双塔双柱双检测器，排除了误检和其他物质的干扰，保证了分析结果的可靠性，方法简单、灵敏、准确。 |
| 关键词: 气相色谱法 多氯联苯 水体 |
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| Determination of Aroclors in Water by Gas Chromatography |
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ZHANG Jian jun, DONG Zheng, WANG Yue
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Zhenjiang Environmental Monitoring Central Station
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| Abstract: |
| 7 Aroclors, namely Aroclor 1016, Aroclor 1221, Aroclor 1232, Aroclor 1242, Aroclor 1248, Aroclor 1254 and Aroclor 1260, in water was determined by GC〖ＣＤ２〗ECD using liquid liquid extraction. The sample was extracted with n hexane, and then concentrated to 1 mL by EVA, which was used for GC determination, with external standard method. Values of recovery were found in the range of 75%~110% and the detection limit was 0.1μg/L. In this method, the use of two detectors with dual tower and dual column can eliminate the disturbance of other materials and guarantee the analytical results reliability. This method was simple, sensitive and accurate. |
| Key words: Gas Chromatography polychlorinated biphenyls (PCBs) water |
