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| 动态顶空-气相色谱/离子阱质谱法测定土壤中苯系物 |
| Dynamic Headspace and Gas Chromatography Mass Spectrometry Method for the Determination of Benzene Series in Soil |
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| DOI： |
| 中文关键词: 动态顶空 气相色谱/质谱联用法 苯系物 土壤 |
| 英文关键词: Dynamic headspace GC/MS Benzene series Soils |
| 基金项目: |
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| 中文摘要: |
| 采用动态顶空进样，气相色谱/离子阱质谱法测定土壤中的苯系物。对样品的吹扫温度、吹扫时间和解析时间进行了优化，各组分的方法检出限：苯为0.43 μg/kg，甲苯为1.13 μg/kg，对、间二甲苯均为1.74 μg/kg，邻二甲苯为0.37 μg/kg；对5种苯系物的低、中质量浓度标液进行加标，回收率为82.0%～115%，重复测定7次的RSD为4.8%～15.1%。对某造纸厂周边土壤样品中苯系物进行测定，结果固废堆存处周边土壤中苯和甲苯检出。 |
| 英文摘要: |
| A gas chromatography/mass spectrometry coupled with dynamic headspace method was established for the determination of benzene series in soil. The sweeping temperature ,sweeping time, and desorption time were optimized, and the detection limits were from 0.37 μg/kg～1.74 μg/kg. The low and medium concentration of blank spike showed the recovery rate were form 82.0%～115%. The RSDs of seven times′ repetitive determination ranged from 4.8%～15.1%. At the same time, the benzene series in the soil around the paper mill were detected using this method and the result was benzene and toluene were detected in the soil around the solid waste piles. |
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